DESC:[0001] PRIORITY CLAIM
[0002] This application claims priority from the provisional application numbered 201641003130 filed with Indian Patent Office, Chennai on 28th January 2016 entitled “Folding box board/laminated board canister with metal bottom”, the entirety of which is expressly incorporated herein by reference.
[0003] Preamble to the Description
[0004] The following specification describes the invention and the manner in which is to be performed:
[0005] DESCRIPTION OF THE INVENTION
[0006] Technical field of the invention
[0007] The present invention relates generally to a packaging technology. More particularly, the present invention relates to a cost effective and light weight canister, which is useful for storage.
[0008] Background of the invention
[0009] A canister is a container, generally made of metal, which is used in packaging industries to store dry food. Generally, the canister comprises of a body, bottom plate and a cap. The canisters are also used to pack the bottles containing liquid or semi liquid products. The use of canister to pack the bottles provides the feeling of the excellent quality of the products to the customers while providing protection of the content kept inside.
[0010] Various types of conventional canisters are known in the prior art, wherein most of the canisters are made of tin, aluminum, plastic or composite paper core. The manufacturing cost involved in manufacturing this type of canisters is very high, since the material used is expensive. Therefore, this increases the cost of the final product.
[0011] The Patent Application WO2007042052 titled “Process for producing combination packing container” discloses a plastic container made with several materials such as paper and plastic, directly or indirectly by many plastic processes. It allows the pack to be filled with liquids and has excellent barring properties and suitable for packaging of food and non-food materials. The pack may be printed with top quality printing. The bottom of the pack is made of tin lids and cap is made using paper i.e. foldable paper or carbon. However, the invention disclosed in the prior art involves use of numerous materials and processing machines to manufacture the packing container resulting in an expensive product.
[0012] The US Patent Application US2438430 titled “Canister” discloses a novel method for manufacturing canister made up of non-metallic material involving simple, practical, and effective steps for uniting fibrous elements into a rigid and permanent relationship. However, the materials used in the disclosed prior art are susceptible for deformation and lose its strength. Thereby, making this canister not suitable for long term use.
[0013] Further, in existing canisters, the entire body along with cap and bottom plate is made of tin, that makes these types of canisters not only expensive, but also heavy in weight. These days, large number of canisters is used by the manufacturers to store the products. Generally, the appearance of the canisters doesn’t appeal to the customer due to unattractive look and feel of the canister, which is one of the most important features to sell the products.
[0014] Hence, looking at the problems in the prior art, there is a need for a cost effective and lightweight canister, which appears to be more appealing and attractive with embossing patterns and better print surface structure.
[0015] Summary of the invention
[0016] The present invention discloses a folding box or laminated canister with a metal bottom. The canister of the present invention comprises a rectangular, square or any shaped body, a rectangular or any shape metal bottom and a cap. The present invention also discloses a process for preparing the rectangular body square or any shaped, rectangular, square or any shaped metal bottom and the cap.
[0017] In accordance with one embodiment of the present invention, the rectangular body is made of a folding box board or a metallized PET (Polyethylene Terephthalate) laminated N-fluted board. The rectangular or any shaped metal bottom, which is made of a tin plate, is further crimped with the rectangular or any shaped body at the bottom of the body with a minute corner radius in the range of 3 to 7 degree. The cap is made from High-Density Polyethylene (HDPE) or any other injection molding grade plastic and is press fitted on the top of the rectangular body.
[0018] According to another embodiment of the invention, the process for preparing the rectangular metal body comprises of laminating the paper board with metalized 12 micron PET film on the smoother side of the board. The laminated boards are printed in an offset printing press using ultraviolet light curable ink and varnishes. The printed sheets are then embossed and cut into desired pack size based on the requirements. Further, the flat and cut printed boards are passed through a folding and gluing process through an automated line to form a rectangular or any shaped tube.
[0019] According to another embodiment of the invention, the process for preparing the rectangular or any shaped metal bottom comprises of lacquering the tin plates on both sides. This is followed by cutting the lacquered plates into smaller strips by using a mechanized guillotine. Further, the strips are fed into a mechanical punching press, which forms the rectangular or any shape of the bottom with desired corner profile.
[0020] According to another embodiment of the invention, the process of preparing the cap comprises of blending the High-density Polyethylene (HDPE) or any other injection molding grade plastic granules with the desired colour and the caps are formed by feeding the blend into an injection molding machine using desired custom molds.
[0021] The present invention thus provides a canister with superior quality that is more appealing and attractive with embossing patterns and better print surface topography. Further, the material used reduces significant transport and manufacturing cost.
[0022] It is to be understood that both the foregoing general description and the following details description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.
[0023] Brief description of the drawings
[0024] The foregoing and other features of embodiments will become more apparent from the following detailed description of embodiments when read in conjunction with the accompanying drawings. In the drawings, like reference numerals refer to like elements.
[0025] FIGURE 1 illustrates the exploded view of a folding box board or laminated board canister with metal bottom, in accordance to one or more embodiments of the invention.
[0026] FIGURE 2 illustrates the perspective view of the folding box board or laminated board canister with metal bottom, in accordance to one or more embodiments of the invention.
[0027] FIGURE 3 illustrates the side view of the folding box board or laminated board canister with metal bottom, in accordance to one or more embodiments of the invention.
[0028] FIGURE 4 illustrates the top view of the folding box board or laminated board canister with HDPE lid, in accordance to one or more embodiments of the invention.
[0029] FIGURE 5 illustrates the bottom view of the folding box board or laminated board canister with metal bottom, in accordance to one or more embodiments of the invention.
[001] FIGURE 6 illustrates the front view of the folding box board or laminated board canister with metal bottom, in accordance with an embodiment of the invention.
[002] FIGURE 7 illustrates the flow chart for the process for preparation of rectangular body.
[0030] FIGURE 8 illustrates the flow chart for the process for preparation of the cap.
[0031] FIGURE 9 illustrates the flow chart for the process for preparation of the rectangular metal bottom.
[0032] FIGURE 10 illustrates the flow chart for the process of assembly of the canister.
[0033] Detailed description of the invention
[0034] Reference will now be made in detail to the description of the present subject matter, one or more examples of which are shown in figures. Each example is provided to explain the subject matter and not a limitation. Various changes and modifications obvious to one skilled in the art to which the invention pertains are deemed to be within the spirit, scope and contemplation of the invention.
[0035] The present invention overcomes the drawbacks of the technology models available in the state of the art by providing a folding box board/laminated board canister with metal bottom. The present invention comprises of a rectangular body, a metal bottom plate and a cap. The rectangular body is made of folding box board or a laminate of folding box board with N-Fluted kraft paper and a liner. The rectangular bottom plate is crimped with the rectangular body at the bottom of the body with a minute corner radius, wherein the bottom plate may be made of tin plate. The cap made from High-density Polyethylene (HDPE) is press fitted on the top of the rectangular body.
[0036] The present invention provides an excellent feel of the quality of the products inside the canister, which appears to be more appealing and attractive with embossing patterns and better print surface structure. The material used in the present invention reduces the overall manufacturing cost.
[0037] FIGURE 1 illustrates the exploded view of a folding box board or laminated board canister. The folding box board or laminated board canister (100) comprises a metal bottom, in accordance to one or more embodiments of the invention. The folding box board or laminated board canister comprises of a rectangular body (102), a metal bottom plate (103) and a cap (101). The rectangular body (102) is a folding box board or a board laminated to an N-fluted kraft paper and a kraft or board liner. The rectangular bottom plate (103) is crimped with the rectangular body (102) at the bottom of the body with a minute corner radius ranging from 3-7 degree, wherein the bottom plate is made of tin. The cap (101) is press fitted on the top of the rectangular body (102), wherein the cap is made of HDPE.
[0038] FIGURE 2 illustrates the perspective view of the folding box board or laminated board canister with metal bottom, in accordance to one or more embodiments of the invention. The rectangular bottom plate (103) is crimped with the rectangular body (102) at the bottom of the body with a minute corner radius ranging from 3-7 degree. The cap (101) is press fitted on the top of the rectangular body (102), wherein the cap is preferably made of HDPE.
[0039] In the preferred embodiment of the present invention, the bottom metal plate is made of 0.26 Millimeter (mm) or suitable thick tin plate and the bottom tin plate is crimped on a 400 Grams per Square Metre (GSM) folding box board or laminate of folding box board or any other suitable board.
[0040] FIGURE 3 illustrates the side view of the folding box board or laminated board canister with metal bottom, in accordance to one or more embodiments of the invention.
[0041] In the preferred embodiment of the present invention, the rectangular bottom plate (103) provides a firm base and support for holding the bottle. The prepared rectangular or any shaped bottom plate (103) is packaged and shipped to the assembly units where the final products to be packed inside the canister.
[0042] FIGURE 4 illustrates the top view of the folding box board or laminated board canister with HDPE or any other injection molding grade plastic lid, in accordance to one or more embodiments of the invention.
[0043] In the preferred embodiment of the present invention, the cap (101) made of HDPE is held secured to the rectangular or any shaped body (102) by friction-tight fit.
[0044] In the preferred embodiment of the present invention, the cap (101) is packaged and shipped to the assembly units where the final products are to be packed inside the canister.
[0045] FIGURE 5 illustrates the bottom view of the folding box board or laminated board canister with a metal bottom, in accordance to one or more embodiments of the invention.
[0046] The present invention gives the canister a very attractive appearance by providing an ornamental space for storing the bottle. Generally, the bottle contains any liquid or semi-liquid but the canister is preferable for using bottles containing liquor. The bottle is easily removed from the base for use by lifting the bottle in upward direction and the same is re-inserted back to its original fixed position to the base.
[0047] FIGURE 6 illustrates the front view of the folding box board or laminated board canister with metal bottom, in accordance with an embodiment of the invention.
[0048] The present invention provides an excellent feel to the quality of the canister, which appears to be more appealing and attractive with embossing patterns and better print surface structure. The materials used in the present invention reduce the overall manufacturing cost.
[0049] FIGURE 7 illustrates the flow chart for the process for preparation of rectangular body. The process (700) of preparation of the rectangular body starts at step (701) of laminating a paper board preferably with metalized 12 micron PET (Polyethylene Terephthalate) film on the smoother side of the paper board. At step (702), the laminated boards are printed in an offset printing press using ultraviolet ray curable ink and varnish. At step (703), the printed sheets are then embossed and cut into sizes specified for each pack size, wherein the size of the pack varies based on the requirement. At step (704), the flat and cut printed boards are passed through a folding and gluing process through an automated line to form a rectangular tube.
[0050] FIGURE 8 illustrates the flow chart for the process for preparation of the cap. The process (800) for preparation of the cap starts at step (801) of blending High-density Polyethylene (HDPE) or any other injection molding grade granules with a suitable color. At step (802), the blend is fed into an injection molding machine for forming the caps using custom molds.
[0051] FIGURE 9 illustrates the flow chart for the process for preparation of the rectangular metal bottom. The process (900) of preparation of the rectangular bottom plate starts at step (901) of lacquering the tin plates on both side, wherein the lacquer coating gives the gold shade as per the requirement and also improves resistance against corrosion. At step (902), the lacquered tin plates are cut into smaller strips by using a mechanized guillotine. At step (903), the strips are fed into a mechanical punching press, which forms the rectangular shape of the bottom with required corner profile.
[0052] FIGURE 10 illustrates the flow chart for the process of assembly of the canister. The process (1000) of assembly of the canister starts with step (1001) of forming a tube on an insert. The tube is formed either manually or automatically. At step (1002), the bottom plate is fitted on the paper tube either manually or automatically. At step (1003), the bottom plate is crimped with the body at the bottom of the body, wherein the bottom plate is made of tin plate. At step (1004), the cap made from HDPE is press fitted on the top of the rectangular body after removing from the crimping machine.
[0053] In the preferred embodiment of the present invention, the assembly of all the components of the canister i.e. the flat and cut printed boards, metal bottom plate and the cap is assembled at a single point, which is closer to the unit/factory wherein the canisters are used to pack the final product. This arrangement reduces the cost of transportation as compared to conventional canisters in which the canister is normally assembled to formed shape at the central point and then transported to various locations where the canisters are used to pack the final product. This process involves high transportation cost as the canister is transported in formed shape, which occupies more space. In the present invention, the final assembly of all the components of the folding box board or laminate of folding box board canister is done at locations closer to the respective units manufacturing the final products to be packed inside the canister. Hence, this arrangement reduces the cost of transportation.
[0054] According to the description disclosed above, the present invention provides a simple, better, efficient canister having a rigid, durable structure which securely protects the bottle inside the canister.
,CLAIMS:We Claim:
1. A folding box board canister (100) with a metal bottom, the canister (100) comprising:
a. a rectangular body (102), wherein the rectangular body (102) is made of a folding box board;
b. a rectangular metal bottom (103), wherein the rectangular metal bottom (103) plate is crimped with the rectangular body (102) at the bottom of the rectangular body (102); and
c. a cap (101), wherein the cap (101) is fitted to the rectangular or any shaped body (102) at the top.
2. The canister (100) as claimed in claim 1, wherein rectangular body (102) is further laminated with an N-Fluted kraft board or any suitable paperboard.
3. The canister (100) as claimed in claim 1, wherein the corner radius of the rectangular metal bottom (103) is within the range of 3 to 7 degree.
4. The canister (100) as claimed in claim 1, wherein the cap (101) is made of High-density Polyethylene (HDPE) or any other suitable injection molding grade plastic and is press fitted on the top of the rectangular body (102).
5. The canister (100) as claimed in claim 1, wherein the rectangular or any other shape bottom plate (103) is made of a tin plate.
6. A process (700) for preparing the rectangular body, the process comprising the steps of:
a. laminating a metallized PET to the paper board on the smoother side of the paper board (701);
b. printing one or more laminated boards (702);
c. embossing one or more printed sheets and cutting into desired pack size, wherein the size of the pack varies based on the requirement (703); and
d. passing one or more flat and cut printed boards through a folding and gluing process through an automated line to form a rectangular tube (704).
7. The process as claimed in claim 6, wherein the paper board is laminated using 12 micron metallized PET (Polyethylene Terephthalate).
8. A process (800) for preparing the cap, the process comprising the steps of:
a. blending High-density Polyethylene (HDPE) granules with a desired colour (801); and
b. feeding the blend into an injection molding machine using desired custom molds to form the cap (802).
9. A process (900) for preparing the rectangular metal bottom, the process comprising the steps of:
a. lacquering one or more tin plates on both sides of the plate (901);
b. cutting the lacquered plates into plurality of smaller strips by using a mechanized guillotine (902); and

c. feeding one or more strips into a mechanical punching press to form the rectangular shape of the bottom (903).
10. A process for assembling the canister, the process (1000) comprising the steps of:
a. forming a tube on an insert (1000);
b. fitting the bottom plate on the paper tube either manually or automatically;
c. crimping the bottom plate with the body at the bottom of the body; and
d. press fitting the cap made from HDPE on the top of the rectangular body after removing from the crimping machine.