A seamless method for zippering waterproof pockets of jackets

Abstract

The invention provides a seamless zipper method for waterproof pockets of a jacket. Firstly, a pocket-shaped opening is made on jacket fabric by a cutting die, the opening width is 10 mm, and the length is determined according to the clothing style requirements; secondly, a waterproof zipper is prepared corresponding to the opening, the waterproof zipper comprises chain teeth, a slider and a cloth tape, a double-sided adhesive layer is bonded along the circumference of the front surface of the cloth tape, and the double-sided adhesive layer is 10 mm wide; then, the fabric after the opening is attached to the front surface of the zipper, the chain teeth and part of the cloth tape are exposed, and preliminary positioning is performed; finally, a hot and cold pressing machine is used for final hot pressing and bonding, and the finished product is cooled by cold pressing; by the method of the invention, the opening of the three-layer fabric is sealed, the fabric will not be debonded or delaminated, the joint position between the fabric and the zipper is smooth as a whole, without protrusions, and the existing problems are perfectly solved.

Description

Technical Field

[0001] The invention relates to the technical field of clothing design, in particular to a seamless zipper method for a waterproof pocket of a jacket. Background Art

[0002] Jackets are common equipment in outdoor sports. They have certain waterproof and warm properties, as well as good wear resistance, and can provide more protection for the wearer outdoors. The popular jackets on the market are usually made of three-layer composite fabrics, namely face fabric, functional membrane and mesh fabric. The final jacket product is obtained by cutting and designing this three-layer composite fabric and then sewing it with a zipper.

[0003] There are usually two ways to combine jacket fabrics and zippers:

[0004] 1. Sewing with needle and thread is the most common method, but needle and thread will be left on the fabric, which will affect the appearance to a certain extent;

[0005] 2. By pasting. Compared with the first method, this method is a hidden combination without stitches and needle holes, which is more popular. Regarding this pasting method, the common practice in the market is to paste a glue layer on the lower surface of the zipper. The glue layer and the zipper are designed to be of equal width. The zipper is bonded to the jacket fabric through the glue layer of equal width, and then opened through the mature laser opening process. The laser performs penetrating cutting on the fabric and the glue layer, and finally the zipper is combined with the jacket fabric.

[0006] The second method mentioned above has high production efficiency and is easy to mass produce. However, as consumers use it, a more obvious problem emerges: the junction between the jacket fabric and the zipper is prone to warping and debonding, especially in places with more friction, which greatly affects the wearing experience of the jacket. Summary of the invention

[0007] The present invention mainly provides a seamless zipper method for a waterproof pocket of a jacket, which seals the opening of three-layer fabrics without debonding and delamination. The joint position between the fabrics and the zipper is smooth as a whole without protrusions, and the existing problems are perfectly solved.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] A seamless method for a zipper of a waterproof pocket of a jacket, comprising the following preparation steps:

[0010] The first step is to make a pocket-shaped opening on the jacket fabric through a die cutter. The opening width is 10mm and the length is determined according to the clothing style requirements.

[0011] The second step is to prepare a waterproof zipper corresponding to the above opening, the waterproof zipper includes chain teeth, a slider and a cloth tape, and a double-sided adhesive layer is bonded along the circumference of the front surface of the cloth tape, and the width of the double-sided adhesive is 10 mm;

[0012] The third step is to fit the fabric after opening to the front surface of the zipper, leaving the chain teeth and part of the tape exposed, for preliminary positioning;

[0013] The fourth step is to use a hot and cold press machine for the final hot pressing bonding and cold pressing to cool the finished product.

[0014] Preferably, in the third step, a double-sided adhesive layer with a width of 2.0 mm to 3.0 mm needs to be exposed at the junction of the waterproof zipper and the fabric.

[0015] Preferably, the double-sided adhesive is made of hot melt adhesive, preferably Bemis 3405 model, and the thickness of the double-sided adhesive is adjusted according to the thickness of the fabric.

[0016] Preferably, in the third step, an electric iron is used to perform preliminary hot pressing positioning.

[0017] Preferably, the hot pressing bonding in the fourth step is performed by hot pressing first and then cold pressing, wherein the hot pressing time is selected to be 15 to 17 seconds and the cold pressing time is 15 to 16 seconds.

[0018] Preferably, the hot pressing temperature of the hot pressing bonding in the fourth step is 155° C., and the hot pressing bonding pressure is 4 kg.

[0019] Preferably, when performing the heat-pressing bonding in the fourth step, a silicone pad is placed under the fabric and zipper to be heat-pressed, and Teflon paper is placed above.

[0020] Preferably, when performing the heat pressing bonding in the fourth step, first pull the pull head to one end of the chain tooth, and then use the heat pressing mechanism to heat press and bond the end away from the pull head; after completion, pull the pull head to the other end of the chain tooth, and then heat press and bond in the same way, thereby ensuring full coverage of heat pressing between the entire zipper and the fabric.

[0021] Preferably, the boundary area between the two hot pressings is hot pressed again by an intermediate pressing method, and the hot pressing pressure is smaller than the hot pressing pressure at both ends.

[0022] The present invention also provides a seamless zipper waterproof pocket for a jacket obtained according to the above method.

[0023] Compared with the prior art, the advantages and positive effects of the present invention are:

[0024] The three-layer composite fabric of the assault jackets on the market is usually composed of a face cloth, a functional film and a mesh cloth. When the zipper is made on the market, the double-sided adhesive is directly bonded to the functional film through the mesh cloth, and the face cloth on the outer surface is not connected to the adhesive, but is bonded in a point-like manner, which means that some places of the cloth layer are empty. At the pocket position, there is often a habit of inserting and taking out hands from the pocket. The pocket position is inevitably rubbed frequently, and this position is often rubbed back and forth when washing clothes. Therefore, after a long time of use, the problem of delamination is inevitable. The present invention innovatively proposes a seamless zipper method, which fills the side seams of the incisions of the three-layer fabrics and completely integrates them together, not only making the combination between the pocket opening fabric and the zipper smooth and beautiful without an open edge feeling, but also making the combination between the zipper and the fabric completely unaffected even after repeated friction or even violent hard friction damage, which perfectly solves the problem that the combination between the jacket fabric and the zipper in the prior art is easy to warp and debond, especially the position with more friction will be more obvious, and has very good technical promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of bonding double-sided tape in the circumferential direction of the waterproof zipper in the present invention;

[0026] Figure 2 It is a schematic diagram of laminating the jacket fabric with a pocket shape cut therein to the front surface of the zipper with double-sided tape adhered thereto, with the chain teeth and part of the fabric tape exposed;

[0027] Figure 3 This is a schematic diagram of a seamless zipper waterproof pocket for a jacket prepared by the present invention;

[0028] Figure 4 In order to compare the difference between the method of the present invention and the existing laser stripping process for making pocket zippers, one side of the zipper is made by the method of the present invention, and the other side is made by the laser stripping process;

[0029] Figure 5 It is a comparison chart after initial destruction used in the comparative test of the present invention, which is intended to compare the difference between the prior art and the present practice;

[0030] Figure 6 It is a comparison diagram after violent destruction in the comparative test of the present invention, which is intended to compare the difference between the prior art and the present invention. DETAILED DESCRIPTION

[0031] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0033] Example:

[0034] First, prepare the fabrics, zippers and double-sided tape to be processed. At the same time, the production process will use tools such as cutting molds, electric irons and hot and cold press machines. Among them: the fabric used in this embodiment is a three-layer composite fabric for a jacket, and the fabric includes a three-layer structure of surface fabric, functional film and lining fabric. This composite fabric is more common in the market; the zipper used in this embodiment is a waterproof zipper, and this waterproof zipper includes chain teeth, a pull head and a cloth tape.

[0035] In the first step, a pocket-shaped cut is made on the jacket fabric through a knife die. The length of the opening can be customized according to the clothing style requirements. The width of the opening is cut to 10mm and set aside for later use. This method uses a knife die to open the opening instead of a laser machine because the laser machine will melt the fabric to produce droplets, making the edge of the fabric too thick. At the same time, the heat of the laser will also damage the adhesive layer of the composite fabric.

[0036] Step 2: Paste double-sided adhesive layers on both sides of the front surface of the waterproof zipper tape along the length direction; then paste double-sided adhesive layers on both sides of the front surface of the waterproof zipper tape along the width direction, so that double-sided adhesive layers are pasted along the circumference of the front surface of the tape. The width of the double-sided adhesive is 10mm. The pasting method can refer to the attached Figure 1 As shown; in order to ensure the density and bonding effect of the double-sided adhesive, hot melt adhesive is used, and the preferred model is Bemis 3405. The thickness of the double-sided adhesive can be adjusted according to the thickness of the fabric. Generally speaking, the thicker the fabric, the thicker the double-sided adhesive should be.

[0037] Step 3: Lay the jacket fabric with pocket shape in step 2 on the positive surface of the zipper with double-sided tape glued in step 2, leaving the chain teeth and part of the tape exposed, and make preliminary positioning. It is worth noting that in this step, the junction of the waterproof zipper and the fabric must have a 2-3mm wide double-sided tape layer exposed, which can be referred to in the attached figure. Figure 2 As shown, preliminary positioning can be performed by gently applying heat pressure with an electric iron.

[0038] In the fourth step, the fabric and zipper after preliminary positioning are further subjected to hot pressing and cold pressing treatment by a hot and cold pressing dual-purpose machine; specifically, the pull head is first pulled to one end of the chain tooth, and the end away from the pull head is hot pressed and bonded by a hot pressing mechanism. The hot pressing time is selected to be 15 to 17 seconds, the hot pressing temperature is selected to be 155°C, and the hot pressing and bonding pressure is selected to be 4 kg. In order to prevent the hot pressing module from sticking to the fabric and affecting the hot pressing effect during the hot pressing process, a silicone cushion is placed under the fabric and zipper, and Teflon paper is placed on the top. After the hot pressing is completed, cold pressing is performed for 15 to 16 seconds to complete the curing and shaping of the hot melt adhesive; after hot pressing one side, the pull head is pulled to the other end of the chain tooth, and hot pressing and bonding are performed in the same way to ensure full coverage of hot pressing between the entire zipper and the fabric; based on the dividing line area between the two hot pressings, the intermediate pressing method can be used for hot pressing again, and the hot pressing pressure is less than the hot pressing pressure at both ends. At the same time, the cold pressing is combined to complete the production of the entire product, and the seamless zipper waterproof pocket for the jacket obtained is obtained, such as Figure 3 As shown, it can be seen that the connection between the fabric and the pocket is very smooth and very beautiful.

[0039] In order to more clearly and intuitively compare the difference between making a waterproof pocket zipper of a jacket based on the laser opening process in the prior art and making a waterproof pocket zipper of a jacket according to the method of the present invention, we selected the same waterproof pocket and zipper, and made one side of it using the method of the present invention and the other side using the existing laser opening process. In terms of intuitive vision, there is no obvious difference between the pocket zippers made by the two processes, as shown in Appendix 4. Destructive tests are carried out under the same conditions below.

[0040] First, use your fingers to keep buckling or use your hand to keep rubbing the junction between the zipper and the fabric. The zipper on one side made by the present invention is smooth and completely integrated with the fabric, and cannot be buckled by hand at all. The rubbing of the joint with the hand surface has no effect. The junction between the zipper and the fabric made by the conventional laser tape opening process is open. After repeatedly buckling with fingers, felt will appear on its edge, and the effect is as follows: Figure 5 shown.

[0041] Next, we continued to use violent destruction for comparison, that is, using a wire ball to repeatedly rub the junction of the zipper and the fabric for at least one minute, and then continue to rub in the reverse direction for the same amount of time after rubbing in the forward direction to ensure that both sides received the same degree of friction damage. As the friction time increased, the difference between the two sides became more and more obvious. The side prepared by the existing method gradually developed burrs and hair loss. When the burrs were gently torn with the fingers, the surface cloth of the fabric cracked and lifted up, and the surface cloth was also torn off, revealing the functional membrane underneath. The side prepared by the method of the present invention was intact, so the method of the present invention has obvious technical progress and advantages.

[0042] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A seamless method for zippering of waterproof pockets of a jacket, characterized in that: The method comprises the following preparation steps: The first step is to make a pocket-shaped opening on the jacket fabric through a die cutter. The opening width is 10mm and the length is determined according to the clothing style requirements. The second step is to prepare a waterproof zipper corresponding to the above opening, the waterproof zipper includes chain teeth, a slider and a cloth tape, and a double-sided adhesive layer is bonded along the circumference of the front surface of the cloth tape, and the width of the double-sided adhesive is 10 mm; The third step is to fit the fabric after opening to the front surface of the zipper, leaving the chain teeth and part of the tape exposed, for preliminary positioning; The fourth step is to use a hot and cold press machine for the final hot pressing bonding and cold pressing to cool the finished product.

2. The seamless zipper method for waterproof pockets of a jacket according to claim 1, characterized in that: In the third step above, a double-sided adhesive layer with a width of 2.0 mm to 3.0 mm needs to be exposed at the junction of the waterproof zipper and the fabric.

3. The seamless zipper method for waterproof pockets of a jacket according to claim 1, characterized in that: The double-sided adhesive is made of hot melt adhesive, preferably Bemis 3405 type, and the thickness of the double-sided adhesive is adjusted according to the thickness of the fabric.

4. The seamless zipper method for waterproof pockets of a jacket according to claim 1, characterized in that: In the third step, an electric iron is used for preliminary heat pressing and positioning.

5. The seamless zipper method for waterproof pockets of a jacket according to claim 1, characterized in that: The hot pressing bonding in the fourth step is performed by first hot pressing and then cold pressing, wherein the hot pressing time is selected to be 15 to 17 seconds and the cold pressing time is 15 to 16 seconds.

6. The seamless zipper method for waterproof pockets of a jacket according to claim 5, characterized in that: The hot pressing temperature of the hot pressing bonding in the fourth step is selected to be 155° C., and the hot pressing bonding pressure is selected to be 4 kg.

7. The seamless zipper method for waterproof pockets of a jacket according to claim 1, characterized in that: When the heat-pressing bonding in the fourth step is performed, a silicone pad is placed under the fabric and zipper to be heat-pressed, and Teflon paper is placed above.

8. The seamless zipper method for waterproof pockets of a jacket according to claim 1, characterized in that: When performing the heat pressing bonding in the fourth step above, first pull the slider to one end of the sprocket, and use the heat pressing mechanism to heat press and bond the end away from the slider; after completion, pull the slider to the other end of the sprocket, and heat press and bond in the same way, thereby ensuring full coverage of heat pressing between the entire zipper and the fabric.

9. The seamless zipper method for waterproof pockets of a jacket according to claim 8, characterized in that: For the boundary area between the two hot pressings, hot pressing is performed again by an intermediate pressing method, and the hot pressing pressure is smaller than the hot pressing pressure at both ends.

10. A seamless zipper waterproof pocket for a jacket as claimed in any one of claims 1 to 9.

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