1. A moisture-detecting grain storage bag (100), comprising: a bag body (102) formed of a material selected from jute, high-density polyethylene, polypropylene, hermetic liner, composite material, or a combination thereof; and a moisture detection element (104) integrated within the bag body (102) and disposed along an inner wall, an outer seam, a transparent window, a pocketed chamber, or a combination thereof, characterized in that the moisture detection element (104) comprising: a sensing layer (106) adapted to be exposed to an internal environment of stored grain for detecting moisture variation within the grain storage bag (100); an indication layer (108) operatively associated with the sensing layer (106) and configured to generate a visible indication corresponding to a detected moisture level through a colorimetric response, visual patch transformation, or externally visible indicator window; and an output interface (110) formed as a visible region aligned with an external surface of the bag body (102) to enable observation of the visible indication from outside the grain storage bag (100) without opening the grain storage bag (100) for identifying moisture accumulation and onset of spoilage conditions.

2. The grain storage bag (100) as claimed in claim 1, comprising a venting unit (112) configured to release humid air from the bag body (102) in response to the visible indication.

3. The grain storage bag (100) as claimed in claim 1, wherein the sensing layer (106) comprise a colorimetric strip configured to change color upon exceeding a predefined relative humidity threshold.

4. The grain storage bag (100) as claimed in claim 1, wherein the sensing layer (106) comprise a moisture-sensitive patch adapted to absorb vapor and produce a reversible or irreversible visual indication.

5. The grain storage bag (100) as claimed in claim 1, wherein the moisture detection element (104) comprises a radio unit (114) configured to provide moisture-related data upon scanning using a handheld device (200).

6. The grain storage bag (100) as claimed in claim 1, wherein the output interface (110) is aligned with a transparent viewing section to facilitate real-time visual inspection from outside the bag body (102).

7. The grain storage bag (100) as claimed in claim 1, wherein multiple moisture detection element(s) 104 are positioned at different vertical or lateral locations within the bag body (102) for detecting localized moisture accumulation.

8. The grain storage bag (100) as claimed in claim 1, wherein the sensing layer (106) operates without electrical power using a chemically responsive material.

9. The grain storage bag (100) as claimed in claim 1, wherein the sensing layer (106) is calibrated to respond to crop-specific moisture thresholds corresponding to grains including wheat, rice, maize, or pulses.

10. A method (300) for detecting moisture within a grain storage environment using a moisture-detecting grain storage bag (100), the method (300) is characterized by steps of: providing a bag body (102) formed of a material selected from jute, high-density polyethylene, polypropylene, hermetic liner, or composite material; integrating a moisture detection element (104) within the bag body (102) along an inner wall, an outer seam, a transparent window, or a pocketed chamber; exposing a sensing layer (106) of the moisture detection element (104) to an internal environment of stored grain to detect moisture variation within the grain storage bag (100); generating a visible indication corresponding to a detected moisture level through a colorimetric response, visual patch transformation, or externally visible indicator window using an indication layer (108) operatively associated with the sensing layer (106); presenting the visible indication through an output interface (110) formed as a visible region aligned with an external surface of the bag body (102); and observing the visible indication from outside the bag body (102) without opening the grain storage bag (100) to identify moisture accumulation and onset of spoilage conditions. Date: May 13, 2026 Place: Noida Nainsi Rastogi Patent Agent (IN/PA-2372) Agent for the Applicant

Description:
BACKGROUND
Field of Invention
[001] Embodiments of the present invention generally relate to post-harvest agricultural storage systems and grain storage means and particularly to a moisture-detecting grain storage bag and method of operation thereof.
Description of Related Art
[002] Post-harvest grain storage faces a persistent problem due to moisture accumulation within storage environments. Excess moisture leads to fungal growth, discoloration, toxin formation such as aflatoxins, and insect infestation, that together reduce grain quality and safety. Conventional storage bags made from jute, HDPE, or polypropylene lack any mechanism that indicates internal humidity levels. Users remain unaware of moisture rise until visible spoilage occurs, that results in economic losses and compromised food standards across farming and storage systems.
[003] Various solutions exist in current practice to address moisture-related deterioration in stored grains. Hermetic storage bags provide airtight protection that restricts oxygen flow and slows biological activity. Moisture indicator cards and chemical strips show color variation under certain humidity conditions. Handheld moisture meters and near-infrared analyzers provide measurement of grain moisture content at specific instances. Large-scale warehouse monitoring systems utilize sensor networks for environmental tracking, while silica gel sachets and absorbents reduce moisture content within confined spaces.
[004] Despite these approaches, several limitations persist in existing solutions. Hermetic bags do not provide any indication of internal moisture rise and require manual inspection. Indicator cards lack durability under bulk grain conditions such as abrasion and dust exposure. Handheld devices depend on sampling and do not provide continuous observation for each storage unit. Warehouse monitoring systems involve high cost and do not suit decentralized storage conditions. As a result, users lack a reliable, continuous, and accessible method to detect moisture presence within individual grain storage bags, that leads to delayed response and preventable losses.
[005] There is thus a need for an improved and advanced moisture-detecting grain storage bag and method of operation thereof that can administer the aforementioned limitations in a more efficient manner.
SUMMARY
[006] Embodiments in accordance with the present invention provide a moisture-detecting grain storage bag. The moisture-detecting grain storage bag comprising a bag body formed of a material selected from jute, high-density polyethylene, polypropylene, hermetic liner, composite material, or a combination thereof. The moisture-detecting grain storage bag further comprising a moisture detection element integrated within the bag body and disposed along an inner wall, an outer seam, a transparent window, a pocketed chamber, or a combination thereof. The moisture detection element comprising a sensing layer adapted to be exposed to an internal environment of stored grain for detecting moisture variation within the grain storage bag, an indication layer operatively associated with the sensing layer and configured to generate a visible indication corresponding to a detected moisture level through a colorimetric response, a visual patch transformation, or an externally visible indicator window, and an output interface formed as a visible region aligned with an external surface of the bag body to enable observation of the visible indication from outside the grain storage bag without opening the grain storage bag for identifying moisture accumulation and onset of spoilage conditions.
[007] Embodiments in accordance with the present invention further provide a method for detecting moisture within a grain storage bag. The method comprising steps of: providing a bag body formed of a material selected from jute, high-density polyethylene, polypropylene, hermetic liner, or composite material; integrating a moisture detection element within the bag body along an inner wall, an outer seam, a transparent window, or a pocketed chamber; exposing a sensing layer of the moisture detection element to an internal environment of stored grain to detect moisture variation within the grain storage bag; generating, using an indication layer operatively associated with the sensing layer, a visible indication corresponding to a detected moisture level through a colorimetric response, a visual patch transformation, or an externally visible indicator window; presenting the visible indication through an output interface formed as a visible region aligned with an external surface of the bag body; and observing the visible indication from outside the bag body without opening the grain storage bag to identify moisture accumulation and onset of spoilage conditions.
[008] Embodiments of the present invention may provide a number of advantages depending on their particular configuration. First, embodiments of the present application may provide to moisture-detecting grain storage bag.
[009] Next, embodiments of the present application may provide a moisture-detecting grain storage bag that provides immediate indication of moisture presence within stored grain, that enables users to take corrective measures before onset of spoilage or contamination.
[0010] Next, embodiments of the present application may provide a moisture-detecting grain storage bag that eliminates requirement for manual sampling or opening of storage bags, thereby maintaining storage integrity and reducing risk of external contamination.
[0011] Next, embodiments of the present application may provide a moisture-detecting grain storage bag that supports preservation of grain quality by reducing occurrence of fungal growth, discoloration, and toxin formation during storage.
[0012] Next, embodiments of the present application may provide a moisture-detecting grain storage bag that offers a low-cost and simple-to-use solution that suits small farmers, traders, and large storage facilities without requirement of specialized equipment.
[0013] Next, embodiments of the present application may provide a moisture-detecting grain storage bag that ensures reliable monitoring across distributed storage units, that improves overall storage management and reduces economic losses.
[0014] These and other advantages will be apparent from the present application of the embodiments described herein.
[0015] The preceding is a simplified summary to provide an understanding of some embodiments of the present invention. This summary is neither an extensive nor exhaustive overview of the present invention and its various embodiments. The summary presents selected concepts of the embodiments of the present invention in a simplified form as an introduction to the more detailed description presented below. As will be appreciated, other embodiments of the present invention are possible utilizing, alone or in combination, one or more of the features set forth above or described in detail below.
BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The above and still further features and advantages of embodiments of the present invention will become apparent upon consideration of the following detailed description of embodiments thereof, especially when taken in conjunction with the accompanying drawings, and wherein:
[0017] FIG. 1 illustrates a schematic diagram of a moisture-detecting grain storage bag, according to an embodiment of the present invention;
[0018] FIG. 2 illustrates a connectivity diagram of a handheld device with a moisture-detecting grain storage bag, according to an embodiment of the present invention; and
[0019] FIG. 3 depicts a flowchart of a method for detecting moisture within the moisture-detecting grain storage bag, according to an embodiment of the present invention.
[0020] The headings used herein are for organizational purposes only and are not meant to be used to limit the scope of the description or the claims. As used throughout this application, the word "may" is used in a permissive sense (i.e., meaning having the potential to), rather than the mandatory sense (i.e., meaning must). Similarly, the words “include”, “including”, and “includes” mean including but not limited to. To facilitate understanding, like reference numerals have been used, where possible, to designate like elements common to the figures. Optional portions of the figures may be illustrated using dashed or dotted lines, unless the context of usage indicates otherwise.
DETAILED DESCRIPTION
[0021] The following description includes the preferred best mode of one embodiment of the present invention. It will be clear from this description of the invention that the invention is not limited to these illustrated embodiments but that the invention also includes a variety of modifications and embodiments thereto. Therefore, the present description should be seen as illustrative and not limiting. While the invention is susceptible to various modifications and alternative constructions, it should be understood, that there is no intention to limit the invention to the specific form disclosed, but, on the contrary, the invention is to cover all modifications, alternative constructions, and equivalents falling within the scope of the invention as defined in the claims.
[0022] In any embodiment described herein, the open-ended terms "comprising", "comprises”, and the like (which are synonymous with "including", "having” and "characterized by") may be replaced by the respective partially closed phrases "consisting essentially of", “consists essentially of", and the like or the respective closed phrases "consisting of", "consists of”, the like.
[0023] As used herein, the singular forms “a”, “an”, and “the” designate both the singular and the plural, unless expressly stated to designate the singular only.
[0024] FIG. 1 illustrates a schematic diagram of a moisture-detecting grain storage bag 100 (hereinafter referred to as the grain storage bag 100), according to an embodiment of the present invention. In an embodiment of the present invention, the grain storage bag 100 may provide continuous monitoring of internal moisture conditions through a passive and externally visible mechanism. The configuration enables identification of moisture accumulation and onset of spoilage conditions without disturbance of stored grain. The grain storage bag 100 may thereby support preservation of grain quality, reduction of post-harvest losses, and improvement in storage management across diverse storage environments. The grain storage bag 100 comprises materials selected for durability, storage compatibility, and environmental resistance.
[0025] In an embodiment of the present invention, the grain storage bag 100 may incorporate non-limiting hardware components such as the grain storage bag 100 may comprise a bag body 102, a moisture detection element 104, a sensing layer 106, an indication layer 108, an output interface 110, a venting unit 112, a radio unit 114, and an alert unit 116.
[0026] In an embodiment of the present invention, the bag body 102 may serve as a primary enclosure for storage of grains such as wheat, rice, maize, pulses, and so forth. The bag body 102 may define an internal storage volume configured to hold bulk grain material while maintaining structural stability under load conditions encountered during storage and transportation. The bag body 102 may be formed using woven or non-woven structures, multilayer laminates, or hermetic constructions to provide mechanical strength and protection against environmental exposure.
[0027] In an embodiment of the present invention, the grain storage bag 100 may be adapted to perform a dual function comprising storage of grain material and integrated sensing of moisture conditions within a single structural unit. The bag body 102 may be adapted to provide mechanical containment of stored grain, while the moisture detection element 104 may be adapted to monitor internal environmental conditions. The configuration may be adapted to combine storage and sensing functionalities without requirement of external devices.
[0028] The bag body 102 may be, but not limited to, woven structures, non-woven structures, multilayer laminates, hermetic enclosures, polymer-based materials, composite materials, textile-based constructions, reinforced fiber structures, laminated barrier materials, and so forth. Embodiments of the present invention are intended to include or otherwise cover any type of the bag body 102, including known, related art, and later developed technologies.
[0029] In an embodiment of the present invention, the moisture detection element 104 may be integrated within the bag body 102 at a location selected from an inner wall, outer seam, transparent window, pocketed chamber, and so forth. The placement of the moisture detection element 104 may ensure interaction with the internal environment of the stored grain while maintaining visibility from an external surface of the bag body 102. The moisture detection element 104 may be embedded, attached, or sealed within the structure of the bag body 102 such that it remains protected from mechanical damage while retaining functional exposure to moisture conditions.
[0030] In an embodiment of the present invention, the moisture detection element 104 may be adapted to be configured as a replaceable or reusable component within the grain storage bag 100. The moisture detection element 104 may be removably attached within a pocketed chamber or accessible section of the bag body 102. The sensing layer 106 may be adapted to be replaced after usage or reset depending on material properties. The configuration may be adapted to extend usability of the grain storage bag 100 across multiple storage cycles.
[0031] In an embodiment of the present invention, the moisture detection element 104 may be adapted to withstand mechanical stress conditions arising from grain storage including abrasion, dust exposure, compressive load, and prolonged contact with bulk grain material. The sensing layer 106, the indication layer 108, and the output interface 110 may be adapted to be enclosed within protective structures or coatings to maintain functional integrity. The configuration may be adapted to ensure reliable operation during transportation, stacking, and long-term storage. In an embodiment of the present invention, the moisture detection element 104 may be configured as a hybrid sensing architecture adapted to integrate the passive sensing layer 106 within a unified structural configuration.
[0032] In an embodiment of the present invention, multiple moisture detection element(s) 104 may be positioned at different vertical or lateral locations within the bag body 102. Such placement enables detection of localized moisture accumulation within different regions of the stored grain mass. The sensing layer 106 may be calibrated to respond to crop-specific moisture thresholds corresponding to different grain types, thereby enhancing accuracy and applicability across various agricultural commodities.
[0033] In an embodiment of the present invention, the grain storage bag 100 may comprise multiple moisture detection element(s) 104 positioned at different vertical levels and lateral regions within the bag body 102. Each moisture detection element 104 may be adapted to independently detect moisture conditions in a localized region of stored grain. The configuration may be adapted to identify uneven moisture distribution and localized moisture accumulation zones within the grain mass.
[0034] The moisture detection element 104 may be, but not limited to, embedded sensing assemblies, integrated detection units, chemical sensing structures, hybrid sensing architectures, electronic sensing assemblies, modular detection components, replaceable sensing units, and so forth. Embodiments of the present invention are intended to include or otherwise cover any type of the moisture detection element 104, including known, related art, and later developed technologies.
[0035] In an embodiment of the present invention, the moisture detection element 104 may comprise the sensing layer 106. The sensing layer 106 may be adapted to be exposed to an internal environment of stored grain for detecting moisture variation within the grain storage bag 100. The sensing layer 106 may comprise a colorimetric strip, a moisture-sensitive patch, a chemically responsive material, and so forth calibrated to respond to predefined humidity thresholds. The sensing layer 106 may undergo a physical or chemical change upon exposure to moisture. The change corresponds to variation in relative humidity or moisture content within the stored grain. Further, the sensing layer 106 operates without electrical power and relies on passive interaction with moisture present in the internal environment.
[0036] In an embodiment of the present invention, the sensing layer 106 may be adapted to operate without requirement of electrical power by utilizing chemically responsive materials that undergo transformation upon exposure to moisture. The moisture detection element 104 may be adapted to provide passive operation in absence of electronic components. The configuration may be adapted to enable deployment in remote or resource-constrained environments without dependency on external power sources.
[0037] In an embodiment of the present invention, the sensing layer 106 may be adapted to undergo a chemical or physical transformation in response to moisture exposure. The indication layer 108 may be adapted to generate electrical signals corresponding to detected moisture levels. The hybrid configuration may be adapted to provide both visual indication through the indication layer 108 and digital output through the radio unit 114. The sensing layer 106 may receive moisture-dependent input and may be adapted to convert such input into encoded data for transmission. The moisture detection element 104 may be adapted to operate in a passive mode, or in an enhanced mode using the sensing layer 106 depending on application requirements.
[0038] In an embodiment of the present invention, the sensing layer 106 may comprise a colorimetric strip configured to change color upon exceeding a predefined relative humidity threshold. In an embodiment of the present invention, the sensing layer 106 may be adapted to be configured with threshold values corresponding to specific grain types including wheat, rice, maize, pulses, and other agricultural commodities. The threshold values may be adapted to define moisture levels associated with safe storage conditions for each grain type. The sensing layer 106 may be adapted to exhibit a visible transformation at the configured threshold. The sensing layer 106 may be adapted to generate a corresponding signal. The configuration may be adapted to enhance detection accuracy and suitability across diverse storage applications.
[0039] In an embodiment of the present invention, the sensing layer 106 may comprise a moisture-sensitive patch adapted to absorb vapor and produce a reversible or irreversible visual indication.
[0040] The sensing layer 106 may be, but not limited to, colorimetric strips, moisture-sensitive films, chemically responsive materials, hygroscopic compounds, polymer-based sensing coatings, printed sensing elements, capacitive sensing materials, resistive sensing materials, optical sensing layers, and so forth. Embodiments of the present invention are intended to include or otherwise cover any type of the sensing layer 106, including known, related art, and later developed technologies.
[0041] In an embodiment of the present invention, the indication layer 108 may be operatively associated with the sensing layer 106. The indication layer 108 may be configured to generate a visible indication corresponding to the detected moisture level through a colorimetric response, a visual patch transformation, or an externally visible indicator window. The indication layer 108 may exhibit a color change, contrast variation, or structural transformation that may be visually distinguishable. The visible response generated by the indication layer 108 corresponds to a moisture condition within the grain storage bag 100, thereby enabling interpretation of storage status. The indication layer 108 may be configured for reversible or irreversible response depending on application requirements.
[0042] The indication layer 108 may be, but not limited to, color-changing materials, visual indicator films, contrast-based indicators, thermochromic materials, electrochromic materials, optical display elements, printed indicator surfaces, and so forth. Embodiments of the present invention are intended to include or otherwise cover any type of the indication layer 108, including known, related art, and later developed technologies.
[0043] In an embodiment of the present invention, the output interface 110 may be aligned with a transparent viewing section to facilitate real-time visual inspection from outside the bag body 102. In an embodiment of the present invention, the output interface 110 may be formed as a visible region aligned with an external surface of the bag body 102. The output interface 110 may enable observation of the visible indication from outside the grain storage bag 100, without opening the grain storage bag 100, for identifying moisture accumulation and onset of spoilage conditions. The configuration of the output interface 110 enables non-invasive monitoring of moisture conditions and eliminates requirement for manual inspection or sampling.
[0044] The output interface 110 may be, but not limited to, transparent windows, translucent panels, viewing apertures, display regions, optical interface surfaces, indicator windows, protective transparent layers, and so forth. Embodiments of the present invention are intended to include or otherwise cover any type of the output interface 110, including known, related art, and later developed technologies.
[0045] In an embodiment of the present invention, the venting unit 112 may be configured to release humid air from the internal storage volume. The venting unit 112 may be adapted to release humid air from the internal storage volume upon receiving a trigger signal corresponding to elevated moisture conditions. The configuration may be adapted to reduce internal humidity and restore acceptable storage conditions for stored grain.
[0046] The venting unit 112 may be positioned along a wall or seam of the bag body 102 and may be actuated in response to detection of elevated moisture levels. The venting unit 112 may facilitate reduction of internal humidity and restoration of suitable storage conditions for the grain. In an embodiment of the present invention, the venting unit 112 may be operatively linked with the moisture detection element 104 and may be adapted to be actuated in response to detection of a moisture level exceeding a predefined threshold. The venting unit 112 may be adapted to operate through a manual activation mechanism or an automatic activation mechanism.
[0047] The venting unit 112 may be, but not limited to, pressure-release valves, micro-venting valves, flap-based vents, membrane-based vents, manually actuated vents, automatically actuated venting mechanisms, controlled airflow structures, and so forth. Embodiments of the present invention are intended to include or otherwise cover any type of the venting unit 112, including known, related art, and later developed technologies.
[0048] In an embodiment of the present invention, the radio unit 114 may be configured to provide moisture-related data upon interrogation using a handheld device 200 (as shown in FIG. 2). The radio unit 114 may store or transmit information corresponding to moisture levels, thereby enabling digital monitoring in addition to visual indication.
[0049] In an embodiment of the present invention, the radio unit 114 may be adapted to store and transmit moisture-related data associated with storage conditions of the grain storage bag 100 for traceability and quality assurance purposes. The stored data may be adapted to represent historical moisture exposure, threshold breach events, and storage duration. The handheld device 200 may be adapted to retrieve such data and present it in a structured format for verification by users, traders, or regulatory entities. The configuration may be adapted to support quality certification and supply chain transparency.
[0050] In an embodiment of the present invention, the radio unit 114 may be embedded within or coupled to the moisture detection element 104 and may be configured to obtain moisture-related input corresponding to variation detected by the sensing layer 106. The radio unit 114 encodes the moisture information into a readable format and facilitates wireless communication. The radio unit 114 operates without an internal power source and derives energy from an electromagnetic field generated during interrogation. The radio unit 114 may be, but not limited to, a near-field communication-based sensor tag, a capacitive moisture sensing element, a resistive moisture sensing element, a printed flexible sensor circuit, an optical moisture sensing component, a surface acoustic wave sensor, a battery-assisted low-power sensing node, a threshold-based electronic sensing element, and so forth. In a preferred embodiment of the present invention the radio unit 114 may be a passive radio frequency identification-based sensing component. Embodiments of the present invention are intended to include or otherwise cover any type of the radio unit 114, including known, related art, and later developed technologies.
[0051] In an embodiment of the present invention, the radio unit 114 may be operatively associated with the alert unit 116 adapted to provide a user-perceivable indication of moisture conditions. The alert unit 116 may be adapted to generate a visual alert through a light-emitting element or a digital alert through a connected handheld device 200. The alert unit 116 may be triggered based on moisture thresholds detected by the sensing layer 106. The alert unit 116 may be adapted to indicate different moisture conditions through variation in signal intensity, color output, or notification format. The configuration may be adapted to provide immediate awareness of unsafe storage conditions without requiring interpretation of the indication layer 108.
[0052] The alert unit 116 may be, but not limited to, light-emitting elements, visual alert indicators, audio alert devices, vibration-based alert mechanisms, notification interfaces, display-based alert systems, and so forth. Embodiments of the present invention are intended to include or otherwise cover any type of the alert unit 116, including known, related art, and later developed technologies.
[0053] In an embodiment of the present invention, the moisture detection element 104 may be adapted to perform continuous real-time monitoring of moisture conditions within the internal storage volume of the grain storage bag 100. The sensing layer 106 may be adapted to remain in constant interaction with the internal environment, enabling uninterrupted detection of moisture variation. The indication layer 108 may be adapted to provide an ongoing visual representation of moisture status without requirement of discrete measurement intervals. The electronic sensing unit 116 may be adapted to continuously update moisture-related data for retrieval through the radio unit 114.
[0054] FIG. 2 illustrates a connectivity diagram of the handheld device 200 with the radio unit 114, according to an embodiment of the present invention.
[0055] In an embodiment of the present invention, the handheld device 200 may comprise a mobile phone, a reader unit, a portable electronic device, and so forth, equipped with a compatible communication interface. The handheld device 200 may be configured to initiate a scanning operation in proximity to the grain storage bag 100, establish a communication link with the radio unit 114, and retrieve moisture-related data associated with the internal storage condition.
[0056] In an embodiment of the present invention, the handheld device 200 further comprises a display interface configured to interpret and present the retrieved data. The display interface provides output in the form of numerical values, status indicators, visual alerts, and so forth, corresponding to moisture levels, thereby enabling users to assess storage conditions and take appropriate action without opening the grain storage bag 100.
[0057] The handheld device 200 may be, but not limited to, mobile phones, smart devices, reader units, portable electronic devices, scanning devices, communication-enabled terminals, and so forth. Embodiments of the present invention are intended to include or otherwise cover any type of the handheld device 200, including known, related art, and later developed technologies.
[0058] FIG. 3 depicts a flowchart of a method 300 for detecting moisture within the grain storage bag 100, according to an embodiment of the present invention.
[0059] At step 302, the grain storage bag 100 may provide the bag body 102 formed of the material selected from jute, high-density polyethylene, polypropylene, hermetic liner, or composite material.
[0060] At step 304, the grain storage bag 100 may integrate the moisture detection element 104 within the bag body 102 along the inner wall, the outer seam, the transparent window, or the pocketed chamber.
[0061] At step 306, the grain storage bag 100 may expose the sensing layer 106 of the moisture detection element 104 to the internal environment of stored grain to detect moisture variation within the grain storage bag 100.
[0062] At step 308, the grain storage bag 100 may generate the visible indication corresponding to the detected moisture level through a colorimetric response, visual patch transformation, or externally visible indicator window using the indication layer 108 operatively associated with the sensing layer 106.
[0063] At step 310, the grain storage bag 100 may present the visible indication through the output interface 110 formed as the visible region aligned with the external surface of the bag body 102.
[0064] At step 312, the grain storage bag 100 may observe the visible indication from outside the bag body 102 without opening the grain storage bag 100 to identify moisture accumulation and onset of spoilage conditions.
[0065] While the invention has been described in connection with what is presently considered to be the most practical and various embodiments, it is to be understood that the invention is not to be limited to the disclosed embodiments, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the scope of the appended claims.
[0066] This written description uses examples to disclose the invention, including the best mode, and also to enable any person skilled in the art to practice the invention, including making and using any devices or systems and performing any incorporated methods. The patentable scope of the invention is defined in the claims, and may include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims if they have structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements within substantial differences from the literal languages of the claims. , Claims:CLAIMS
I/We Claim:
1. A moisture-detecting grain storage bag (100), comprising:
a bag body (102) formed of a material selected from jute, high-density polyethylene, polypropylene, hermetic liner, composite material, or a combination thereof; and
a moisture detection element (104) integrated within the bag body (102) and disposed along an inner wall, an outer seam, a transparent window, a pocketed chamber, or a combination thereof, characterized in that the moisture detection element (104) comprising:
a sensing layer (106) adapted to be exposed to an internal environment of stored grain for detecting moisture variation within the grain storage bag (100);
an indication layer (108) operatively associated with the sensing layer (106) and configured to generate a visible indication corresponding to a detected moisture level through a colorimetric response, visual patch transformation, or externally visible indicator window; and
an output interface (110) formed as a visible region aligned with an external surface of the bag body (102) to enable observation of the visible indication from outside the grain storage bag (100) without opening the grain storage bag (100) for identifying moisture accumulation and onset of spoilage conditions.
2. The grain storage bag (100) as claimed in claim 1, comprising a venting unit (112) configured to release humid air from the bag body (102) in response to the visible indication.
3. The grain storage bag (100) as claimed in claim 1, wherein the sensing layer (106) comprise a colorimetric strip configured to change color upon exceeding a predefined relative humidity threshold.
4. The grain storage bag (100) as claimed in claim 1, wherein the sensing layer (106) comprise a moisture-sensitive patch adapted to absorb vapor and produce a reversible or irreversible visual indication.
5. The grain storage bag (100) as claimed in claim 1, wherein the moisture detection element (104) comprises a radio unit (114) configured to provide moisture-related data upon scanning using a handheld device (200).
6. The grain storage bag (100) as claimed in claim 1, wherein the output interface (110) is aligned with a transparent viewing section to facilitate real-time visual inspection from outside the bag body (102).
7. The grain storage bag (100) as claimed in claim 1, wherein multiple moisture detection element(s) 104 are positioned at different vertical or lateral locations within the bag body (102) for detecting localized moisture accumulation.
8. The grain storage bag (100) as claimed in claim 1, wherein the sensing layer (106) operates without electrical power using a chemically responsive material.
9. The grain storage bag (100) as claimed in claim 1, wherein the sensing layer (106) is calibrated to respond to crop-specific moisture thresholds corresponding to grains including wheat, rice, maize, or pulses.
10. A method (300) for detecting moisture within a grain storage environment using a moisture-detecting grain storage bag (100), the method (300) is characterized by steps of:
providing a bag body (102) formed of a material selected from jute, high-density polyethylene, polypropylene, hermetic liner, or composite material;
integrating a moisture detection element (104) within the bag body (102) along an inner wall, an outer seam, a transparent window, or a pocketed chamber;
exposing a sensing layer (106) of the moisture detection element (104) to an internal environment of stored grain to detect moisture variation within the grain storage bag (100);
generating a visible indication corresponding to a detected moisture level through a colorimetric response, visual patch transformation, or externally visible indicator window using an indication layer (108) operatively associated with the sensing layer (106);
presenting the visible indication through an output interface (110) formed as a visible region aligned with an external surface of the bag body (102); and
observing the visible indication from outside the bag body (102) without opening the grain storage bag (100) to identify moisture accumulation and onset of spoilage conditions.

Date: May 13, 2026
Place: Noida

Nainsi Rastogi
Patent Agent (IN/PA-2372)
Agent for the Applicant