Enhanced thermoplastic polyester composite bag

Abstract

The utility model discloses an enhanced thermoplastic polyester composite bag, and relates to the technical field of polyester composite bags. The bag comprises a bag body, an adhesive is arranged on the outer wall of the bag body, a reinforcing layer is arranged on one side of the adhesive, a wear-resistant layer is arranged on one side of the reinforcing layer, an anti-sticking layer is arranged on the inner wall of the bag body, a handle is fixedly connected to the top of the bag body, and a tensile part is installed on the outer wall of the wear-resistant layer. The composite bag is provided with the adhesive, the reinforcing layer and the wear-resistant layer, the reinforcing layer is made of a carbon fiber material made of a high-performance fiber material, the material can remarkably improve the mechanical property of the composite bag, meanwhile, the adhesive is made of environment-friendly polyurethane glue, the adhesive strength can be guaranteed, the environment-friendly requirement is met, and the wear-resistant performance of the composite bag is improved through connection of the bag body, the adhesive and the reinforcing layer. The tensile strength and the tearing strength of the composite bag can be effectively improved under the conditions that the cost and the environment are kept, and meanwhile the good barrier property is kept.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of polyester composite bags, in particular to a reinforced thermoplastic polyester composite bag. BACKGROUND

[0002] The thermoplastic polyester composite bag generally refers to a packaging bag made of thermoplastic polyester as the main material or as one layer in a composite material, and the thermoplastic polyester is a saturated polyester with thermoplastic properties, which has good thermoplasticity, chemical stability and mechanical strength, so that it has a wide application in the packaging field.

[0003] In the aspect of food packaging, the thermoplastic polyester composite bag can provide good sealing and barrier properties, effectively protecting the food from pollution and damage from the external environment, and at the same time, since the thermoplastic polyester material has a certain transparency, consumers can clearly see the food in the package, enhancing the attractiveness of the product.

[0004] At present, the common thermoplastic polyester composite bags on the market are prone to damage under some special conditions, such as stretching and friction, so in order to improve the performance of the composite bag, the existing technology mostly adds various additives to improve its performance, but the cost of these methods is generally high and may also bring various environmental problems, which cannot meet the market demand for high-performance and environmentally friendly packaging materials, therefore, the application provides a reinforced thermoplastic polyester composite bag. CONTENT OF THE INVENTION

[0005] The application aims to solve the problem that adding various additives to improve its performance, but the cost of these methods is generally high and may also bring various environmental problems, which cannot meet the market demand for high-performance and environmentally friendly packaging materials, and provides a reinforced thermoplastic polyester composite bag.

[0006] In order to achieve the above-mentioned purpose, the application specifically adopts the following technical scheme:

[0007] A reinforced thermoplastic polyester composite bag, comprising a bag body, an adhesive is arranged on the outer wall of the bag body, a reinforcing layer is arranged on one side of the adhesive, a wear-resistant layer is arranged on one side of the reinforcing layer, a release layer is arranged on the inner wall of the bag body, a handle is fixedly connected to the top of the bag body, a tensile-resistant piece is mounted on the outer wall of the wear-resistant layer, a handle slot is formed through the handle, a sealing piece is mounted in the handle, and an anti-slip strip is fixedly connected to the inner wall of the handle slot.

[0008] By adopting the technical scheme, the connection of the bag body, the adhesive and the reinforcing layer can effectively improve the tensile strength and tear strength of the composite bag while maintaining the cost and environmental protection, and maintain good barrier performance. The wear-resistant layer can effectively resist external friction and scratches to further prolong the service life of the composite bag. In addition, the anti-adhesion layer can effectively reduce the surface energy of the inner wall of the composite bag, so that the composite bag is not easy to adhere to the stored food. In addition, when the food is inserted into the composite bag, the sealing element inside the handle can be tightly connected by manually pressing the handle on the top, so as to maintain the sealing effect of the composite bag as a whole. During the carrying process of the composite bag, the tensile resistance element can effectively improve the tensile resistance effect of the composite bag, significantly improve the strength of the composite bag, and better adapt to different use conditions.

[0009] Further, the bag body is made of thermoplastic polyester material.

[0010] By adopting the technical scheme, the bag body made of thermoplastic polyester material can effectively improve the tensile strength and tear strength of the composite bag while maintaining good barrier performance.

[0011] Further, the adhesive is an environmentally friendly polyurethane adhesive.

[0012] By adopting the technical scheme, the adhesive adopts the environmentally friendly polyurethane adhesive, which can ensure the bonding strength and meet the environmental protection requirements.

[0013] Further, the reinforcing layer is made of carbon fiber.

[0014] By adopting the technical scheme, the reinforcing layer adopts carbon fiber material which is a high-performance fiber material. The material has the characteristics of high lightness and high modulus, and can significantly improve the mechanical properties of the composite bag.

[0015] Further, the wear-resistant layer is formed by resin coating.

[0016] By adopting the technical scheme, the wear-resistant layer formed by resin coating can effectively resist external friction and scratches to further prolong the service life of the composite bag.

[0017] Further, the anti-adhesion layer is made of polyethylene.

[0018] By adopting the technical scheme, the anti-adhesion layer is made of polyethylene, which can effectively reduce the surface energy of the inner wall of the composite bag, so that the composite bag is not easy to adhere to the stored food.

[0019] Further, the anti-stretching piece comprises a plurality of rubber strips symmetrically fixedly connected to the outer wall of the wear-resistant layer, and L-shaped strips are fixedly connected to the bottoms of the two sides of the wear-resistant layer, one side of the inner wall of the L-shaped strip is fixedly connected to the wear-resistant layer, and the other side of the inner wall of the L-shaped strip is fixedly connected to the bottom of the wear-resistant layer.

[0020] By adopting the above technical scheme, the stretching resistance of the composite bag can be effectively improved through the protection of the rubber strips and the L-shaped strips, the strength of the composite bag is significantly improved, and the composite bag can better adapt to different use conditions.

[0021] Further, the sealing piece comprises a T-shaped plate fixedly connected to one side of the inner handle, silica gel strips are fixedly connected to the upper and lower sides of the T-shaped plate, a fixed plate is fixedly connected to the other side of the inner handle, and a sealing groove is formed in the inner fixed plate.

[0022] By adopting the above technical scheme, since the silica gel strips are soft, the T-shaped plate and the silica gel strips can be clamped into the sealing groove by pressing, so that the top of the composite bag is sealed, and the overall sealing effect of the composite bag is greatly improved.

[0023] In summary, the present application has at least one of the following beneficial effects:

[0024] 1. The present application is provided with an adhesive, a reinforcing layer and a wear-resistant layer, the reinforcing layer is made of carbon fiber material which is a high-performance fiber material, which can significantly improve the mechanical properties of the composite bag, and the adhesive is an environmentally friendly polyurethane adhesive, which can ensure the bonding strength and meet the environmental protection requirements. Through the connection of the bag body, the adhesive and the reinforcing layer, the tensile strength and tear strength of the composite bag can be effectively improved while keeping the cost and environmental protection, and good barrier properties are maintained.

[0025] 2. The present application is provided with an anti-stretching piece and a sealing piece, the T-shaped plate and the silica gel strips can be clamped into the sealing groove by pressing, so that the top of the composite bag is sealed, and the overall sealing effect of the composite bag is greatly improved. Secondly, the stretching resistance of the composite bag can be effectively improved through the protection of the rubber strips and the L-shaped strips, the strength of the composite bag is significantly improved, and the composite bag can better adapt to different use conditions. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a perspective view of the device main body in the present application.

[0027] Figure 2 is a sectional view of the device main body in the present application.

[0028] Figure 3 is a perspective view of the sealing piece in the present application.

[0029] REFERENCE SIGNS:

[0030] 1, bag body; 2, adhesive; 3, reinforcing layer; 4, wear-resistant layer; 5, anti-adhesion layer; 6, handle; 7, rubber strip; 8, L-shaped strip; 9, handle groove; 10, anti-skid strip; 11, T-shaped plate; 12, silica gel strip; 13, fixing plate; 14, sealing groove. DETAILED DESCRIPTION

[0031] The application will be further described below with reference to the accompanying drawings. Figures 1-3 The application will be further described below with reference to the accompanying drawings.

[0032] The application discloses an enhanced thermoplastic polyester composite bag.

[0033] Referring to Figure 1 , Figure 2 and Figure 3 , an enhanced thermoplastic polyester composite bag comprises a bag body 1, the outer wall of the bag body 1 is provided with an adhesive 2, one side of the adhesive 2 is provided with a reinforcing layer 3, one side of the reinforcing layer 3 is provided with a wear-resistant layer 4, the inner wall of the bag body 1 is provided with an anti-adhesion layer 5, the top of the bag body 1 is fixedly connected with a handle 6, the outer wall of the wear-resistant layer 4 is provided with a tensile-resistant piece, the handle 6 is provided with a handle groove 9 penetratingly formed therein, the handle 6 is provided with a sealing piece mounted therein, the inner wall of the handle groove 9 is fixedly connected with an anti-skid strip 10, the bag body 1 is made of a thermoplastic polyester material, the adhesive 2 is an environment-friendly polyurethane adhesive, and the reinforcing layer 3 is made of carbon fiber.

[0034] In the production of the composite bag, the bag body 1 is first adhered to the reinforcing layer 3 through the adhesive 2, the reinforcing layer 3 is made of carbon fiber which is a high-performance fiber material, the material has the characteristics of high lightness and high modulus, and can significantly improve the mechanical properties of the composite bag, meanwhile, the adhesive 2 is an environment-friendly polyurethane adhesive, which can ensure the adhesive strength and meet the environmental protection requirements, through the connection of the bag body 1, the adhesive 2 and the reinforcing layer 3, the tensile strength and tear strength of the composite bag can be effectively improved while the cost and environmental protection are maintained, and the good barrier property is maintained, through the wear-resistant layer 4 arranged on the outer surface of the composite bag, the friction and scratches from the outside can be effectively resisted, so that the service life of the composite bag is further prolonged, secondly, through the anti-adhesion layer 5 arranged on the inner wall of the composite bag, the surface energy of the inner wall of the composite bag can be effectively reduced, so that the composite bag is not easy to adhere to the stored food, in addition, when the food is inserted into the composite bag, the handle 6 at the top can be manually pressed to tightly connect the sealing piece in the handle 6, so as to maintain the sealing effect of the composite bag as a whole, then the hand can be inserted into the handle groove 9 to easily hold the composite bag, and the anti-skid strip 10 can effectively prevent the composite bag from being squeezed, and through the tensile-resistant piece, the tensile resistance of the composite bag can be effectively improved, the strength of the composite bag is significantly improved, and the composite bag can better adapt to different use conditions.

[0035] Referring to Figure 1 ,Figure 2 and Figure 3 The wear-resistant layer 4 is coated with resin, and the anti-sticking layer 5 is made of polyethylene.

[0036] In use, the wear-resistant layer 4 coated with resin effectively resists external friction and scratches, further prolonging the service life of the composite bag. In addition, the anti-sticking layer 5 provided on the inner wall of the composite bag is made of polyethylene, which can effectively reduce the surface energy of the inner wall of the composite bag, so that the composite bag is not easy to stick to the stored food.

[0037] Referring to Figure 1 , Figure 2 and Figure 3 , the anti-stretching member includes a plurality of rubber strips 7 symmetrically fixedly connected to the outer wall of the wear-resistant layer 4. The wear-resistant layer 4 is fixedly connected with an L-shaped strip 8 at both sides of the bottom. The inner wall of one side of the L-shaped strip 8 is fixedly connected with the wear-resistant layer 4, and the inner wall of the other side of the L-shaped strip 8 is fixedly connected with the bottom of the wear-resistant layer 4.

[0038] In use, when the composite bag is stretched, rubbed, etc., the rubber strips 7 and the L-shaped strips 8 can effectively improve the anti-stretching effect of the composite bag, significantly improve the strength of the composite bag, and better adapt to different use conditions.

[0039] Referring to Figure 1 , Figure 2 and Figure 3 , the sealing member includes a T-shaped plate 11 fixedly connected to one side of the inside of the handle 6. The upper and lower sides of the T-shaped plate 11 are fixedly connected with silica gel strips 12. The other side of the inside of the handle 6 is fixedly connected with a fixed plate 13. The inside of the fixed plate 13 is provided with a sealing groove 14.

[0040] In use, when the food is inserted into the inside of the composite bag, the handle 6 at the top can be manually pressed. At this time, the T-shaped plate 11 and the silica gel strips 12 can be attached to the fixed plate 13. Since the silica gel strips 12 are soft, the T-shaped plate 11 and the silica gel strips 12 can be clamped into the inside of the sealing groove 14 according to the pressing, so as to realize the sealing of the top of the composite bag, and greatly improve the overall sealing effect of the composite bag.

[0041] The implementation principle of the enhanced thermoplastic polyester composite bag is as follows: during the production of the composite bag, the bag body 1 is first adhered to the reinforcing layer 3 by the adhesive 2, and the reinforcing layer 3 is made of carbon fiber material which is a high-performance fiber material. The material has the characteristics of high lightness and high modulus, and can significantly improve the mechanical properties of the composite bag. At the same time, the adhesive 2 is an environmentally friendly polyurethane glue, which can ensure the bonding strength and meet the environmental protection requirements. Through the connection of the bag body 1, the adhesive 2 and the reinforcing layer 3, the composite bag can effectively improve the tensile strength and tear strength while keeping the cost and environmental protection, and also maintain good barrier properties. The wear-resistant layer 4 made of resin coating can effectively resist external friction and scratches to further prolong the service life of the composite bag. The anti-sticking layer 5 made of polyethylene set on the inner wall of the composite bag can effectively reduce the surface energy of the inner wall of the composite bag, so that the composite bag is not easy to stick to the stored food;

[0042] In addition, when the food is inserted into the composite bag, the handle 6 at the top can be manually pressed. At this time, the T-shaped plate 11 and the silica gel strip 12 can be attached to the fixed plate 13. Since the silica gel strip 12 is made of soft material, the T-shaped plate 11 and the silica gel strip 12 will be clamped into the sealing groove 14 according to the pressing. In this way, the top of the composite bag is sealed, which greatly improves the overall sealing effect of the composite bag. Then, the hand can be inserted into the handle groove 9 to easily lift the composite bag. The anti-slip strip 10 can effectively prevent the composite bag from being squeezed. During the carrying process of the composite bag, when the composite bag is stretched, rubbed or subjected to other conditions, the rubber strip 7 and the L-shaped strip 8 can effectively improve the tensile resistance of the composite bag and significantly improve the strength of the composite bag, so as to better adapt to different use conditions.

Claims

1. An enhanced thermoplastic polyester composite bag comprising a bag body (1), characterized in that: The outer wall of the bag body (1) is provided with an adhesive (2), one side of the adhesive (2) is provided with a reinforcing layer (3), one side of the reinforcing layer (3) is provided with a wear-resistant layer (4), the inner wall of the bag body (1) is provided with an anti-sticking layer (5), the top of the bag body (1) is fixedly connected with a handle (6), the outer wall of the wear-resistant layer (4) is provided with a tensile-resistant piece, the handle (6) is provided with a handle groove (9) penetratingly arranged, the handle (6) is provided with a sealing piece, and the inner wall of the handle groove (9) is fixedly connected with an anti-skid strip (10).

2. The reinforced thermoplastic polyester composite bag of claim 1, wherein: The bag body (1) is made of thermoplastic polyester material.

3. The reinforced thermoplastic polyester composite bag of claim 1, wherein: The adhesive (2) is an environmentally friendly polyurethane glue.

4. The reinforced thermoplastic polyester composite bag of claim 1, wherein: The reinforcing layer (3) is made of carbon fiber.

5. The reinforced thermoplastic polyester composite bag of claim 1, wherein: The wear-resistant layer (4) is coated with resin.

6. The reinforced thermoplastic polyester composite bag of claim 1, wherein: The anti-sticking layer (5) is made of polyethylene.

7. The reinforced thermoplastic polyester composite bag of claim 1, wherein: The tensile-resistant piece comprises a plurality of rubber strips (7) fixedly connected to the outer wall of the wear-resistant layer (4) in a symmetrical manner, and L-shaped strips (8) are fixedly connected to the two side bottoms of the wear-resistant layer (4), one side of the inner wall of the L-shaped strip (8) is fixedly connected with the wear-resistant layer (4), and the other side of the inner wall of the L-shaped strip (8) is fixedly connected with the bottom of the wear-resistant layer (4).

8. The reinforced thermoplastic polyester composite bag of claim 1, wherein: The sealing piece comprises a T-shaped plate (11) fixedly connected to one side of the inside of the handle (6), and silica gel strips (12) are fixedly connected to the upper and lower sides of the T-shaped plate (11), and a fixed plate (13) is fixedly connected to the other side of the inside of the handle (6), and a sealing groove (14) is arranged in the inside of the fixed plate (13).

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