TW202120608A - Thin film bag structure - Google Patents

Abstract

A thin film bag structure includes a bag, and the bag is utilized a base layer to enclose a receiving space to form the bag for receiving articles. The base layer has at least one toughened structure made of geometric pattern, such as strips, meshes, convex shapes, to make the bag be tough and not easy to break. Also the surface of the base layer is provided with at least one reinforcing layer, which can be printed, coated, or pasted thereon. Therefore, the thin film bags are durable and inexpensive.

Description

Film bag structure

The present invention relates to a film bag body, more particularly a film bag body containing a toughened structure or a strengthening layer, and is especially suitable for general film bag bodies such as environmental protection bags, plastic bags and the like.

In general life, users hope that the bag body used for packaging is cheap, easy to use, strong and tough, environmentally friendly and clean, and after use, they hope that the bag can be light and small, easy to store and organize, so the current film bag is still made of large Part of the plastic is bulk.

Since film bags are mostly made of plastic, the more common bags on the market are: polypropylene (PP), polyethylene (PE), polyvinyl chloride (PVC) and oriented stretch polypropylene (OPP) films, etc. , Generally collectively referred to as plastic bags, because plastic bags are waterproof, airtight, light, not easy to break, low cost, easy to process, etc., they are widely used in daily life for packaging items; even in many processing industries, Plastic bags are often used as protection for certain processed objects.

However, people have also discovered that energy problems, air pollution, marine garbage, food safety and other current thorny environmental protection issues are all related to plastics. Therefore, for environmental protection issues, they have begun to use plant-decomposable environmentally friendly plastic materials, such as polylactic acid (PLA). ) Is a thermoplastic aliphatic polyester; the lactic acid or lactide required to produce polylactic acid (PLA) can be obtained by fermentation, dehydration, and purification from renewable resources. The resulting polylactic acid generally has good mechanical and processing properties, and After being discarded, polylactic acid products can be quickly decomposed in various ways.

However, the cost of environmentally friendly materials is higher than that of plastic. Although plastic bags are cheaper, the surface of the plastic bags is not tough enough. In order to strengthen the toughness of the plastic bags, the thickness must be increased. This will increase the cost of production and is not environmentally friendly. Therefore, how to design a film bag body? The bag body can increase the toughness without increasing the thickness of the material, so that whether the bag is made of plastic or environmentally friendly materials, it can reduce the production cost and take into account the reduction of plastic to achieve the goal of environmental protection. It is indeed an important technical topic worthy of discussion.

In view of the conventional bag body is not tough enough and easy to break, the present invention proposes a film bag body structure, its purpose is to enhance the bag body toughness, so that the bag can be light, thin and practical, which includes a bag body, and the bag system uses A base layer is enclosed to form an accommodating space to form the film bag for storing articles, and at least one toughened structure is formed on the base layer, and the toughened structure is a geometric figure (such as: strip, mesh, Convex and other shapes) to make the bag tough and not easy to break and break; or the surface of the base layer is provided with at least one strengthening layer, which can be bonded to the surface of the base layer by printing, coating, sticking, etc. To form this tough and low-cost film bag body.

1‧‧‧Bag body

2‧‧‧Pocket opening

10‧‧‧Base layer

11‧‧‧Toughened structure

20‧‧‧Strengthening layer

Fig. 1 is a three-dimensional view of the structure of the film bag body of the present invention.

Figure 2-1 is a cross-sectional view 1-1 of the structure of the film bag body of the present invention.

Figure 2-2 is a sectional view 1-2 of the film bag body structure of the present invention.

Figure 3 is a two-dimensional view of the structure of the film bag body of the present invention.

Figure 4-1 is a sectional view 2-1 of the structure of the film bag body of the present invention.

Fig. 4-2 is a sectional view 2-2 of the structure of the film bag body of the present invention.

Figure 5-1 is a three-dimensional view of the structure of the film bag body of the present invention.

Fig. 5-2 is a three-dimensional view of the structure of the film bag body of the present invention.

Figure 6 is four cross-sectional views of the film bag body structure of the present invention.

Fig. 7 is a four-dimensional view of the structure of the film bag body of the present invention.

Fig. 8 is a five cross-sectional view of the structure of the film bag body of the present invention.

Fig. 9 is a six-dimensional view of the structure of the film bag body of the present invention.

According to the structure of the film bag of the present invention, please first refer to FIG. 1, which is a three-dimensional view of the structure of the film bag of the present invention.

The film bag structure of the present invention includes a bag body 1 with a base layer 10 made of light and thin material. On the base layer 10, at least one toughened structure 11 is formed, and the toughened structure 11 is a geometric figure (such as: It can be seen from the figure that the base layer 10 is used to enclose a containing space and form the bag body 1, and the original material on the base layer 10 forms a toughened structure 11 , It can mainly increase the toughness of the film bag body, so that the bag body 1 can have breaking resistance.

As shown in the figure, the toughened structure 11 forms a grid-like structure, so that the base layer 10 looks like a concave-convex surface. Please first refer to Figure 2-1 which is a cross-sectional view of the film bag structure of the present invention. The surface edge of the base layer 10 is provided with a toughened structure 11, so the toughened structure 11 is convex, and the base layer 10 can be set to be flat or concave (but not limited to a specific type). Please also refer to Figure 2-2 is a cross-sectional view 1-2 of the film bag body structure of the present invention. The surface of the film bag body has different thicknesses; so the overall lightness and thinness of the base layer 10 is beneficial to reduce the production cost, and the protruding toughened structure 11 will make the film The bag body is not easy to break and break.

Since the base layer 10 and the toughened structure 11 can be made of the same material, for example, plastic bags (PE, PP), plastic ropes, woven bags (PP), nylon threads (Nylon), plastics (PE, PS, ABS), Recycled paper plastic residual film (PE), leather, cotton thread, polylactic acid (PLA), straw paper, and plant decomposable environmentally friendly materials can be produced by choosing one of them. The film bag body is produced by printing, coating, sticking, Adhesion of the toughened structure 11 is carried out by either gluing or hot melting.

In addition to the aforementioned method of producing the structure of the film bag, without violating the same spirit of the invention, the film bag structure of the present invention has another embodiment. Please refer to FIG. 3, which is a three-dimensional view of the film bag structure of the present invention.

The film bag structure of the present invention includes a bag body 1 with a base layer 10 made of light and thin material. The base layer 10 is provided with at least one strengthening layer 20 on the surface, and the strengthening layer 20 can be a geometric figure (such as: It can be seen from the figure that the base layer 10 encloses a containing space to form the bag body 1, and the base layer 10 is provided with a strengthening layer 20, It can mainly increase the toughness of the film bag body, so that the bag body 1 can form breaking resistance.

As shown in the figure, the strengthening layer 20 has a diamond-like pattern, so that the base layer 10 looks like an oblique lattice concave-convex surface. Please refer to Figure 4-1, which is a cross-sectional view of the film bag structure of the present invention. In Figure 1, the surface edge of the base layer 10 is provided with a strengthening layer 20, so that the strengthening layer 20 protrudes from the base layer 10 made of light and thin material, so that the surface of the film bag body looks different in thickness; so that the base layer 10 is light and thin as a whole The production cost is reduced, and the protruding strengthening layer 20 can be solid or hollow (see also Fig. 4-2), but not limited to a specific type, so that the film bag body is not easy to break and break.

However, the base layer 10 and the reinforcement layer 20 of this embodiment are made of different materials, so the reinforcement layer 20 can be made of different materials, among which the materials can be plastic bags (PE, PP), plastic ropes, woven bags (PP), nylon threads (Nylon ), plastic (PE, PS, ABS), recycled paper plastic residual film (PE), leather, cotton thread, polylactic acid (PLA), straw paper, and plant decomposable environmentally friendly materials to choose two combinations, and film bags The volume production method is carried out by any of printing, coating, sticking, gluing or hot melt The reinforced layer 20 is bonded to the base layer 10.

In addition to the aforementioned method of using the film bag structure, the film bag structure of the present invention has another embodiment. Please refer to FIG. 5-1, which is a three-dimensional view of the film bag structure of the present invention.

The film bag structure of the present invention includes a bag body 1 with a base layer 10 made of a light and thin material. On the base layer 10, at least one toughened structure 11 (or reinforced layer 20) is formed, and the toughened structure 11 ( Or the strengthening layer 20) is a geometric figure (such as: strip, net, convex... etc.). It can be seen from the figure that the base layer 10 is used to enclose a containing space and form the bag body 1. A toughened structure 11 (or a strengthening layer 20) is formed on the base layer 10, which can mainly increase the toughness of the film bag body, so that the bag body 1 can have breaking resistance.

In the figure, the toughened structure 11 (or the reinforced layer 20) can be formed into any pattern to make the film bag look like a concave-convex surface, wherein the toughened structure 11 (or the reinforced layer 20) is convex, and the base layer 10 is concave as a whole. Make the surface of the film bag appear to have different thicknesses; so that the overall lightness and thinness of the base layer 10 is beneficial to reduce production costs, and the protruding toughened structure 11 (or strengthening layer 20) will make the film bag difficult to break and break, and The base layer 10 and the toughened structure 11 (or the strengthening layer 20) can be made of the same material and made similar to that of FIG. 1, and will not be repeated here.

In addition to the base layer 10 being connected to the tough structure 11 (or strengthening layer 20) on the front side, it can also be connected to the tough structure 11 (or strengthening layer 20) on the back of the base layer 10; for example, the toughening structure 11 (or strengthening layer 20) ) Is concave, and the base layer 10 is protruding as a whole, so that the surface of the film bag body looks different in thickness; such a light and thin base layer 10 as a whole is beneficial to reduce production costs, and the concave toughened structure 11 (or strengthened layer 20) The film bag body is not easy to break and break. In this example, the reinforced layer 20 is arranged inside the bag body 1, which can be clearly seen from the bag mouth 2 in the figure. Please refer to Figure 5-2, which is the film bag body of the present invention. Three-dimensional structure -2 diagram.

In addition to the aforementioned uneven structure of the film bag of the present invention, the reinforcing layer 20 can penetrate into the base layer 10, so that the appearance of the base layer 10 is as smooth as a general film bag, but the penetration of the reinforcing layer 20 will make the film bag difficult to pull. Broken and broken; the printing method is to draw a line in a 3D printing method and then pultrude to form a strengthening layer 20 with a hot stick; or use a method of sticking cotton threads with glue, or draw on straw paper to form a strengthening layer 20, and other production methods can be used; and the film bag body can be made of various combinations of parts, such as polylactic acid (PLA) or other environmentally friendly recycled materials, so that most of the film bag body can be stamped and then joined Other parts can effectively reduce costs, and production methods are not limited to specific types and methods.

In addition to the aforementioned method of using the film bag structure, the film bag structure of the present invention has another embodiment. Please refer to FIG. 6, which is a four sectional view of the film bag structure of the present invention.

The film bag structure of the present invention includes a bag body 1. The bag body 1 has a base layer 10 made of light and thin material. The upper surface of the base layer 10 is provided with a strengthening layer 20, and the strengthening layer 20 can be washed out most of the area to become A geometric figure (such as: strip, mesh, convex... etc.), it can be seen from the figure that the base layer 10 encloses a containing space to form the bag body 1, and the base layer 10 is A reinforced layer 20 is provided. Most of the area of the reinforced layer 20 is washed away to reduce the use cost, and the reinforced layer 20 can still maintain the toughness of the film bag body, so that the bag body 1 can form breaking resistance. Please refer to FIG. Four three-dimensional diagrams of the film bag body structure of the present invention.

Of course, in addition to the aforementioned film bag structure of the present invention, there is a simple embodiment, wherein the film bag structure of the present invention includes a base layer 10 made of light and thin material, and the surface of the base layer 10 can be processed by, for example, a punching machine to wash out most of the area. , The toughened structure 11 formed into geometric figures (such as strips, nets, convex... etc.), when the surface of the base layer 10 is washed off, the base layer 10 can reduce the cost of use, and The toughened structure 11 formed on the surface can still maintain the toughness of the film bag. The bag body can have breaking resistance. From the figure, you can refer to FIG. 8, which is a five-sectional view of the structure of the film bag body of the present invention.

Finally, please refer to Figure 9, which is a three-dimensional six-dimensional view of the film bag structure of the present invention. The film bag structure of the present invention can be seen in the figure. The base layer 10 can be used to form geometric figures (such as: strips, nets, convex surfaces.. .Etc. shape), the bag structure can still hold solid products, and the base layer 10 has toughness and is not easy to break and rupture. The mesh bag in the figure is lightweight and can effectively reduce production costs.

From the foregoing description, it can be understood that the film bag structure of the present invention has a toughened structure (or a strengthening layer) that can increase toughness, so that the film bag can form breakage resistance, thereby allowing the base layer to choose light and thin materials and reducing production costs; The present invention is disclosed in the foregoing preferred embodiments as above, but it is not intended to limit the present invention, and the types of components of the present invention are not limited to the embodiments without violating the same spirit of the invention, such as a toughened structure ( Or strengthening layer) is not limited to a specific type, and the toughened structure (or strengthening layer) is arranged on the front (convex), back (concave), double-sided, or the strengthening layer penetrates into the base layer, and Or the material of the film bag body is not limited to the types and quantities mentioned in the embodiment, as long as it does not deviate from the spirit and scope of the present invention, some changes and modifications can be made, so the protection scope of the present invention should be considered The attached scope of patent application shall prevail.

1‧‧‧Bag body

10‧‧‧Base layer

11‧‧‧Toughened structure

Claims (14)

A film bag body structure, the bag body comprising: at least one base layer for enclosing a containing space to form the bag body, and at least one toughened structure is formed on the surface of the base layer, and the toughened structure is used for To increase the toughness of the base layer. The film bag structure according to item 1 of the scope of patent application, wherein the toughened structure is arranged on the front or back of the base layer. The film bag structure according to the first item of the scope of patent application, wherein the toughened structure is in the form of a strip, a mesh, a convex surface, a geometric figure or a combination thereof. According to the first film bag structure of the scope of patent application, the base layer and the toughened structure are made of the same material, and the material is a plastic bag (PE, PP), plastic rope, woven bag (PP), nylon thread ( Nylon), plastic (PE, PS, ABS), recycled paper plastic residual film (PE), leather, cotton thread, polylactic acid (PLA), straw paper, or plant decomposable environmentally friendly materials. According to the first film bag structure in the scope of patent application, the toughened structure is bonded by printing, coating, dipping, gluing or hot melt. According to the first film bag structure in the scope of patent application, the surface of the base layer is processed by a punch to form the toughened structure. According to the first film bag structure in the scope of patent application, the base layer is more a grid structure. A film bag body structure, wherein the bag body includes: At least one base layer for enclosing an accommodating space to form the bag; and At least one strengthening layer is combined with the surface of the base layer, and the strengthening layer is used to increase the toughness of the base layer. The film bag structure according to item 8 of the scope of patent application, wherein the strengthening layer is disposed on the base layer The front, back, or penetration into the base layer. The film bag structure according to item 8 of the scope of patent application, wherein the reinforcing layer is in the form of a strip, a mesh, a convex surface, a geometric figure or a combination thereof. According to the film bag structure of item 8 of the scope of patent application, the material of the reinforcing layer is different from the material of the base layer, and the material is a plastic bag (PE, PP), plastic rope, woven bag (PP), nylon thread (Nylon), plastic (PE, PS, ABS), recycled paper plastic residual film (PE), leather, cotton thread, polylactic acid (PLA), straw paper, and plant decomposable environmentally friendly materials optional combination. According to the eighth film bag structure in the scope of patent application, the strengthening layer is bonded by printing, coating, sticking, gluing or hot melt. According to the 13th film bag structure in the scope of the patent application, the printing method is a 3D printing method and drawing lines and then pultruding to form the strengthening layer by a thermal adhesive. According to the eighth film bag structure in the scope of patent application, the surface of the strengthening layer is formed by a punching machine.

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