CN100497117C - Production of U-shaped self-adhering and air-isolated packing bag - Google Patents

Abstract

The invention relates to a manufacturing method of a U-shaped self-adhesive film air-rejecting three-dimensional packaging bag. The method utilizes the self-absorption of the self-adhesive film and the characteristics of a printing barrier device, and undergoes a series of simple local heat-sealing and bonding with special special-purpose heat-sealing equipment. U-shaped self-adhesive film repelling air three-dimensional packaging bags can be manufactured by using the distribution technology of the distribution supply main pipe. Compared with the prior art, the U-shaped self-adhesive film air-repelling three-dimensional packaging material produced by the present invention has excellent comprehensive protection properties such as extrusion resistance, shock resistance, drop resistance and buffering, and can be used as a filling packaging material for articles. Partial or important part of the spacer and all-round outer packaging of articles.

Description

Manufacturing method of U-shaped self-adhesive film repelling air three-dimensional packaging bag

technical field

The invention relates to a method for manufacturing a U-shaped self-adhesive film air-repelling three-dimensional packaging bag, which can be used in various fields of precious and fragile products such as electronic products, glassware, precision instruments and meters, handicrafts, and relatively high safety protection performance.

Background technique

Using traditional packaging materials, such as foamed plastic, EPE, paper and hard plastic, etc., it is often difficult to provide items with high safety protection performance requirements. However, air has been used as the cheapest and environmentally friendly packaging medium. When air and film are combined to form packaging materials, it has incomparable advantages in previous packaging materials, such as extrusion resistance, shock resistance, drop resistance and cushioning. Excellent comprehensive protection performance.

The air-packing materials mentioned above also have traditional primitive methods, such as balloons, which are tied with strings after inflation to prevent air leakage, and a series of complex valves such as so-called stop valves, safety valves, and mechanical valves. Or plugs, etc., they have certain one-sidedness and inconvenience in actual production and operation.

Contents of the invention

The purpose of the present invention is to overcome the defects in the above-mentioned prior art and provide a method for manufacturing a U-shaped self-adhesive film repelling air three-dimensional packaging bag with excellent comprehensive protection properties such as extrusion resistance, shock resistance, drop resistance and buffering. .

The purpose of the present invention can be achieved through the following technical solutions:

The manufacture method of U-shaped self-adhesive film repelling air three-dimensional packaging bag is characterized in that the packaging bag is made of resin film 1, resin film 3 two wider resin films and resin film 2a, resin film 2b two narrower resin films Composition, wherein the inner surface of the resin film 2a is partially equipped with a high temperature resistant anti-adhesive printing barrier device d, and the inner surface of the resin film 2a needs to be corona treated when printing, and it must be able to make the resin film 2a when heat sealing A false heat seal is formed between the resin film 2b, so that the resin film 2a and the resin film 2b are not bonded together; the resin film 1 and the resin film 3 are placed on the upper and lower surface layers, and the resin film 2 is placed on the middle layer. After it is finished, it is heat-sealed by heat-seal a1, heat-seal a2, and after overlapping, it is heat-sealed by heat-seal b first, and then heat-sealed by c1, heat-seal c2 and heat-seal c6, forming a storage medium air space B; if the overlap is completed, it will be heat-sealed with multiple heat-seals b, and then heat-sealed with c1, c2, c3, c4 and c6, forming a multi-seal The U-shaped self-adhesive film formed after the two spaces B are connected and inflated rejects air and the three-dimensional packaging material D;

The three-dimensional packaging material D is partially heat-sealed after two folding lines of heat-sealing c3 and heat-sealing c4 are folded and configured, and enters through the air distribution and supply main pipe A and enters through the distribution channel a to store medium air. After the space B, use the stickiness characteristics of the film itself and the principle of air pressure to prevent the medium air from leaking out, and use the resin film 2a with a printed blocking device d to make the bottom part of the heat seal a1 and the heat seal c2 False heat seal jointly formed by heat sealing on the printing barrier device d b1 is the technology of empty false heat seal; when inflated, the air enters through the opening of the distribution supply main pipe A and passes through the distribution channel a, and enters each space B smoothly , has just formed a three-dimensional air packaging material U, which is a U-shaped self-adhesive film repelling air three-dimensional packaging bag.

In the space B, there are two folding lines of intermittent heat seal c3 and heat seal c4, and the intermittent fold point is not in contact with heat seal b, so that air can still easily enter space B; heat seal c3, With the existence of two folding lines of heat seal c4, the packaging material D can realize folding and deformation, which is more suitable for product diversity; the three-dimensional air packaging material D forms a foldable surface between heat seal c2 and heat seal c3 B1, a folding surface B2 is formed between heat sealing c3 and heat sealing c4, a folding surface B3 is formed between heat sealing c4 and heat sealing c6, and a margin surface B4 is formed between heat sealing c6 and the edge of the resin film; the folding surface B1 Opposite to the folded surface B3, there is a folded surface B2 on the bottom of the folded surface B1 and the folded surface B3; after the folded surface B1 and the folded surface B3 are folded and arranged through the folding line heat-sealing c3 and heat-sealing c4, they are partially heat-sealed to form A space for storing articles W; the opposite surface of the folding surface B2 formed by the opposite folding surface B1 and folding surface B3 forms an opening for easy insertion of articles.

The first content of the present invention proposes a brand-new and simple technology, using the self-absorption of the self-adhesive film and the characteristics of the printing barrier device d, through a series of simple local heat-sealing and bonding of special special-purpose heat-sealing equipment, it can be It produces a three-dimensional packaging material that uses self-adhesive film to reject air. It abandons the traditional so-called stop valve, safety valve, mechanical valve and a series of complex valves or plugs. The use of medium air makes the production of air packaging materials And the operation is more convenient, simpler, and the application field is wider.

The second content of the present invention is to use the distribution technology of the distribution supply main pipe to derive a plurality of distribution channels on the distribution supply main pipe, so that the air can easily and naturally enter the inside of the packaging material.

The third content of the present invention is the barrier technology of the special high temperature resistant anti-sticking printing barrier device invented in order to realize the distribution technology of the distribution supply main pipe.

The present invention uses the above three invention principles to invent a U-shaped self-adhesive air-rejecting three-dimensional packaging bag from the mucous membrane.

1. The first content of the present invention: air enters from the opening of the distribution supply main pipe A, passes through the gap between the resin film 2a and the resin film 2b through the false heat seal b1 and passes through the distribution channel a, from the resin film 2a and the resin film 2b The gap between the resin film 2a and the resin film 2b enters each space B smoothly. With the increase of the air flow, the space B begins to expand gradually. When the inflation is stopped, the gap between the resin film 2a and the resin film 2b, due to the special performance and automatically adsorbed together, in addition to the effect of air pressure, the sticking between the resin film 2a and the resin film 2b is tighter, so that the air that enters cannot leak out from the space B, and realizes the film The technical invention of self-adhesive adsorption and one-way leak-proof function.

2. The second content of the present invention: heat seal c1 and heat seal c2 form the air distribution and supply main pipe A, the tops of heat seal c1 and heat seal c2 are in contact with heat seal b to form a seal together, air enters from the opening, and False heat seal b1 flows into each space B through channel a, so that when inflating, as long as the air source is directly connected to the opening of distribution supply pipe A, the air will automatically enter through the diversion of false heat seal b1 and distribution channel a Each air chamber B is very convenient and fast when using the product, greatly improving work efficiency.

3. The third content of the present invention: the realization of the false heat seal b1. The heat seal of heat seal c2 directly acts on the printing barrier device d, resin film 1 and resin film 2a are heat sealed together by heat seal c2, and resin film 3 and resin film 2b are heat sealed together by heat seal c2 Together, the inner surface of the resin film 2a is partially equipped with a special high-temperature resistant anti-sticking printing barrier device d, which has higher requirements on the raw material performance index of the self-adhesive film itself, and the inner surface of the resin film 2a needs to be partially corona-treated during printing. A series of treatments, such as printing media, also have very special professional requirements. It must be able to form a false heat seal between the resin film 2a and the resin film 2b during heat sealing, so as not to make the resin film 2a and the resin film 2a. The films 2b are bonded together. Since the resin film 2a and the resin film 2b are separated by a printed blocking device, the false heat seal b1 is realized, and air can easily enter the space B.

The U-shaped self-adhesive film rejects the air three-dimensional packaging bag of the present invention. Its characteristics are: it is composed of resin film 1 and resin film 3, two relatively wide resin films and resin film 2 (resin film 2a, resin film 2b), two narrow resin films, wherein the resin film 2a is a local belt on the inner surface. There is a special high temperature resistant anti-adhesive printing barrier device, which has high requirements on the raw material performance index of the self-adhesive film itself, and the inner surface of the resin film 2a needs to undergo a series of treatments such as corona during printing, which is also very harmful to the printed medium. Special professional requirements must be able to form a false heat seal between the resin film 2a and the resin film 2b during heat sealing, so as not to make the resin film 2a and the resin film 2b stick together. Resin film 1 and resin film 3 are placed on the upper and lower surface layers, and resin film 2 is placed on the middle layer. After overlapping, they are heat-sealed with a1 and heat-sealed with a2. After overlapping, they are firstly heat-sealed with heat-seal b, and then Heat seal c1, heat seal c2, heat seal c3, heat seal c4 and heat seal c6 form a space B that can store medium air.

The feature of this product is that each space B has an independent air inlet. False heat seal b1 is formed by heat sealing together with resin film 2 (resin film 2a, resin film 2b) under the action of heat seal a1 and heat seal a2. distribution channel a, and form a sealed space body.

The feature of this product D is that each space B is relatively independent and plays its own role. If there is an air leak in one of the spaces B, the other spaces B will not be affected.

The characteristic of this product D is that the medium air in each space B is provided by the same distribution supply main pipe A, as long as the distribution supply main pipe A is inflated, each space B will enter the air smoothly.

The feature of this product D is that there are two folding points of heat seal c3 and heat seal c4 in each space B to heat seal the resin film 1 and resin film 3, and the surroundings of each folding point are different from the heat seal b. contact so that it does not interfere with the entry of air.

The above-mentioned U-shaped packaging bag is characterized by:

A folding surface B1 formed between heat sealing c2 and heat sealing c3, using folding surface B1 as the front of the U-shaped bag;

A folding surface B2 formed between heat sealing c3 and heat sealing c4, using folding surface B2 as the bottom surface of the U-shaped bag;

A folded surface B3 formed between heat seal c4 and heat seal c6, the folded surface B3 is used as the back of the U-shaped bag;

A surface B4 formed between the heat seal c6 and the edge of the film, this surface is the safety production margin surface for bag making;

Since a foldable surface B1 is formed between heat seal c2 and heat seal c3, a foldable surface B2 is formed between heat seal c3 and heat seal c4, and a foldable surface B3 is formed between heat seal c4 and heat seal c6. c6 and the edge of the resin film form a margin surface B4. The folded surface B1 and the folded surface B3 are opposed to each other through dedicated special equipment, and the folded surface B2 exists on the bottom surface of the folded surface B1 and the folded surface B3. After the folded surface B1 and the folded surface B3 are folded and configured through the folding line heat seal c3 and heat seal c4, they are partially heat sealed to form a space for storing articles W. The opposite side of the folded surface B2 formed by the folded surface B1 and the folded surface B3 facing each other, that is, the opening part is falsely heat-sealed b1, so that the articles are easy to put in. In this way, a U-shaped air three-dimensional packaging bag is formed.

Put the article into the packaging bag, the air source is from the distribution supply main pipe A, through the false heat seal b1 and through the distribution channel a, and smoothly enters each space B from the gap between the resin film 2a and the resin film 2b, with the air As the flow rate increases, the space B begins to expand gradually; when the inflation is stopped, the gap between the resin film 2a and the resin film 2b is automatically adsorbed together due to the special properties of the inner surface of the film itself, and the effect of air pressure is added. , so that the sticking between the resin film 2a and the resin film 2b is tighter, so that the incoming air cannot leak out from each space B. Items are protected on multiple surfaces in the bag.

Compared with the prior art, the U-shaped air three-dimensional packaging material of the present invention has excellent comprehensive protection properties such as extrusion resistance, shock resistance, drop resistance and buffering, and can be used as filling packaging materials for articles, parts or important parts of articles The spacer board and all-round outer packaging of items.

Description of drawings

Figure 1: Schematic diagram of distribution technology of self-adhesive air-rejecting three-dimensional packaging bag distribution and supply main pipe;

Figure 2: Schematic diagram of printing barrier device barrier technology;

Figure 3: Schematic diagram of the formation of the false heat seal b1 at the distribution port of the three-dimensional packaging bag that rejects air from the mucous membrane;

Figure 4: Schematic diagram of the working principle of self-adhesive air-rejecting three-dimensional packaging bags (schematic diagram of self-adhesive film rejection);

Figure 5: The configuration plan of the U-shaped air packaging bag for self-adhesive air-rejecting three-dimensional packaging bags;

Figure 6: Folding schematic diagram of the U-shaped air packaging bag of self-adhesive air-rejecting three-dimensional packaging bag;

Figure 7: A three-dimensional schematic diagram of a U-shaped air packaging bag that rejects air from the mucous membrane;

Figure 8: Schematic diagram of an application example of a U-shaped air packaging bag that rejects air from the mucous membrane and a three-dimensional packaging bag.

Detailed ways

1. As long as there are four layers of resin film, using the principle of automatic adsorption of self-adhesive film and the barrier properties of special high-temperature resistant anti-stick printing barrier device, it can be produced through a series of simple local heat-sealing and bonding of special special-purpose heat-sealing equipment A series of related products from mucous membrane repelling air three-dimensional packaging bags.

As shown in Figure 4, take two polyethylene films of comparable size, one consists of two narrower polyethylene self-adhesive films with mutual self-absorption, two wider resin films 1, and resin films 3 respectively Placed on the upper and lower surface layers, and the resin film 2 is placed on the middle layer, wherein the resin film 2a is partially equipped with a special high temperature resistant anti-sticking printing barrier device d on the inner surface, which has higher requirements on the raw material performance index of the self-adhesive film itself, and when printing The inner surface of the resin film 2a needs to undergo a series of treatments such as corona, and has special professional requirements for the printed medium. It must be able to form a false gap between the resin film 2a and the resin film 2b during heat sealing. Heat sealing is unlikely to make the resin film 2a and the resin film 2b stick together. After overlapping, heat-sealing a1, heat-sealing a2, resin film 2 and resin film 1 are heat-sealed together to form a distribution channel a, and then heat-sealing b, heat-sealing c1, heat-sealing c2 and The heat seal of heat seal c6 forms a sealed space B that can store medium air. A plurality of spaces B are connected and inflated to form a three-dimensional air packaging material D. As shown in Figure 3, the formation of the false heat seal b1, the heat seal of the heat seal c2 is due to the barrier characteristics of the special high temperature resistant anti-adhesive printing barrier device, so that a false heat seal is formed between the resin film 2a and the resin film 2b. The primary heat sealing of seal c2 is to heat seal resin film 2a, resin film 1, resin film 2b, and resin film 3 together, so that air can easily enter space B from between resin film 2a and resin film 2b, thereby fills the entire space B.

After the air enters the space B, due to the mutual adsorption characteristics between the resin film 2a and the resin film 2b, when the inflation is stopped, the passage between the resin film 2a and the resin film 2b is automatically closed, so the air cannot infiltrate from the space B In addition, because the resin film 2 and the resin film 1 are heat-sealed together, the side of the resin film 2 that is not directly heat-sealed with the resin film 1 will be subjected to the air pressure of the space B, so that the resin film 2a and the resin film 2b are bonded together. Closer together, making space B a completely enclosed space.

The above is the description of the principle of the present invention. It is different from the traditional method of preventing air leakage in the past. It does not need to add additional external auxiliary devices. The air can be stored in a closed space for a long time. Using this principle, a series of related products and derivative products of three-dimensional packaging bags that reject air from the mucous membrane can be produced.

2. Self-adhesive air rejection three-dimensional packaging bag distribution supply main pipe distribution technology: as shown in Figure 1, the air only needs to enter from the opening of the supply main pipe A, and then pass through the distribution of the false heat seal b1, and then enter the space B smoothly through the channel a . Of course, sometimes according to needs, the heat seal c1 may not be heat sealed, and the air source is directly inflated against the false heat seal b1, and the air can enter the space B smoothly.

3. Barrier technology of high temperature resistant anti-adhesive printing barrier device: as shown in Figure 2 and Figure 3, since the resin film 2a is partly equipped with a printing barrier device d on the inner surface, it has higher requirements on the raw material performance index of the self-adhesive film itself, and During printing, the inner surface of the resin film 2a needs to undergo a series of treatment such as corona, and there are also very special professional requirements for the printing medium, which must be able to realize the formation of resin film 2a and resin film 2b during heat sealing A false heat seal is unlikely to make the resin film 2a and the resin film 2b stick together. Therefore, the heat seal of heat seal c2 is due to the barrier characteristics of the printing barrier device, so that a false heat seal is formed between the resin film 2a and the resin film 2b. The resin film 2b and the resin film 3 are heat-sealed together separately, so that air can easily enter the space B from the false heat seal between the resin film 2a and the resin film 2b, so that the entire space B forms a hermetic seal.

4. U-shaped air packaging bag for self-adhesive air-rejecting three-dimensional packaging bag: as shown in Figure 6 to Figure 8, use two heat-sealing knife molds of heat-sealing c3 and heat-sealing c4 to make two heat-sealing molds of heat-sealing c3 and heat-sealing c4 Fold and overlap along the middle of the folded surface B2, heat seal c6 and heat seal c2 are overlapped, and then fold and heat seal the two sides of the folded surface B1 and B3 along the two sides of the folded surface B2, one of which will heat One end of the intake air supply distribution manifold A formed between the seal c1 and the heat seal c2 is closed, and the other end is used as an inflation opening. After being folded and inflated in this way, a regular U-shaped air packing bag is formed.

This air-packing bag adopts the supply main pipe distribution air intake technology, and uses the resin film 2a to partially have a special high temperature resistant anti-sticking printing barrier device d, so that the heat of the bottom edge part of the heat seal a1 and the heat seal c2 on the printing barrier device d The false heat seal b1 formed together by the seals is an empty false heat seal, so that air can easily enter from the opening of the distribution supply main pipe A. Since the other end of the supply main pipe A is closed, the air can only flow from the false heat seal b1 To enter, enter each space B through the distribution channel A. The three-dimensional air-packing material U is formed after a plurality of connected spaces B are simply heat-sealed, folded and inflated. When the inflation is stopped, the gap between the resin film 2a and the resin film 2b is automatically adsorbed together due to the special properties of the film inner surface itself, and the effect of air pressure is added to make the gap between the resin film 2a and the resin film 2b The paste between them is tighter, so that the incoming air cannot leak out from each space B. An air-packing bag with multi-faceted protection properties can be formed.

Since each space B is independent of each other, when one of them is damaged, the other air chambers B will not be affected. In practical application, this packaging bag can be used to package items individually, or multiple items can be used to package items. For example, in order to reduce the packaging cost, without reducing the protective performance of the article, two U-shaped packaging bags can be used to pack the article, as shown in Figure 8, which can also play a good protective performance . Moreover, the packaging method of two U-shaped packaging bags in pairs also solves the disadvantage that a single U-shaped packaging bag cannot provide all-round protection. Therefore, this kind of packaging bag is a popular product packaging, and it is very easy to use.

In addition, it is important to make a statement: the U-shaped bag mentioned above is not the entire content of the present invention, but only one of the types of packaging bags we manufacture; and the folding surface is not just a single plane. In the application, the folding surface can be made into an inverted V shape by heat sealing and folding, so that the U-shaped packaging bag becomes a W-shaped packaging bag. After such deformation, the packaging bag can withstand greater load impact and the cushioning performance can be greatly improved. Improvement, for some items with special requirements, we usually use the above methods to provide packaging, so as to provide safer protection for the items.

In a word, any change in the shape of the product by changing the shape of the heat seal, the way of folding, the size and position of the heat seal, or through different cutting, as long as the purpose of the present invention can be achieved, belongs to the scope of the present invention.

Claims (2)

1.U the manufacture method of type air-isolated and self-adhering packing bag, it is characterized in that, this packaging bag is by resin film (1), the resin film of (3) two broads of resin film and resin film (2a), two narrower resin films of resin film (2b) are formed, wherein resin film (2a) for the inside face part has high temperature resistant antiseized printing baffling device (d), and the inside face of resin film (2a) is local when printing needs through corona treatment, make the heat-sealing that forms a falseness between resin film (2a) and the resin film (2b) in the time of must be able to being implemented in simultaneously heat-sealing, be unlikely to make resin film (2a) and resin film (2b) to bond together; Resin film (1), resin film (3) is placed on top layer up and down, resin film (2) is placed on interlayer, after overlapping the putting well through the heat-sealing (a1), the heat-sealing of heat-sealing (a2), the heat-sealing of process heat-sealing (b) earlier of overlapping good back is again through heat-sealing (c1), the heat-sealing of heat-sealing (c2) and heat-sealing (c6) then forms the space (B) that can deposit medium air; If overlapping good back is earlier through the too much heat-sealing of bar heat-sealing (b), through heat-sealing (c1), heat-sealing (c2) seals (c3) again, the heat-sealing of heat-sealing (c4) and heat-sealing (c6) then forms and a kind of being linked to each other by a plurality of spaces (B) inflates the U type air-isolated and self-adhering packing material (D) that the back forms;

Described volumetric packaging material (D), through interrupted heat-sealing (c3), after heat-sealing (c4) two fold line folded configuration, carry out local heat-sealing, after air puts on rations that house steward (A) enters and enters the space (B) that can deposit medium air through over-allocation passage (a), utilize the viscosity characteristics of film self and the principle of air pressure, medium air can not therefrom be leaked out, utilize resin film (2a) part to have printing baffling device (d), make the base part of heat-sealing (a1) and the common pseudo-heat that forms of heat-sealing (c2) heat-sealing on printing baffling device (d) seal (b1) technology for hollow pseudo-heat envelope; Air enters through house steward's (A) the opening of putting on rations and through over-allocation passage (a), enters each space (B) smoothly during inflation, has just formed the air packaging material (U) of a solid, is U type air-isolated and self-adhering packing bag.

2. the manufacture method of U type air-isolated and self-adhering packing bag according to claim 1, it is characterized in that, described space (B), interrupted heat-sealing (c3) is arranged, two fold lines of heat-sealing (c4) produce, do not contact with heat-sealing (b) around the break of interrupted shape, air still is easy to enter space (B) like this; Heat-sealing (c3), the existence of heat-sealing (c4) two fold lines, packing (D) can be realized folding and distortion, are more suitable for the variety of product; Described three-dimensional air packaging material (D), form a face that can fold (B1) between heat-sealing (c2) and the heat-sealing (c3), form a fold plane (B2) between heat-sealing (c3) and the heat-sealing (c4), form a fold plane (B3) between heat-sealing (c4) and the heat-sealing (c6), heat-sealing (c6) and resin film edge form a surplus face (B4); Fold plane (B1) and fold plane (B3) is opposed, there is fold plane (B2) in the bottom surface of fold plane (B1) and fold plane (B3); With fold plane (B1) and fold plane (B3) by fold line heat-sealing (c3) and heat-sealing (c4) folded configuration after, seal through local, form the space that can deposit article (W); Promptly form article in the opposite of the fold plane (B2) of fold plane (B1) and the opposed formation of fold plane (B3) and be easy to let-in peristome.

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