A matte tooth nylon zipper and a manufacturing method thereof

Abstract

The application provides a manufacturing method of a matte tooth nylon zipper, comprising the following steps: A) forming PET monofilament, sewing the obtained formed tooth on a cloth tape, and then sequentially performing dyeing, oil removal and cleaning on the formed tooth; B) removing the tooth obtained in the step A) from the cloth tape; C) sequentially performing oil removal and cleaning on the tooth obtained in the step B); D) corroding the tooth obtained in the step C); E) spraying matt oil paint on the surface of the corroded tooth, then spraying protective paint, and sewing the obtained tooth on the dyed cloth tape after baking. The manufacturing method of the matte tooth nylon zipper can realize the matt effect of the tooth and does not affect the chain effect of the zipper.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of zipper manufacturing, in particular to a matte tooth nylon zipper and a manufacturing method thereof. BACKGROUND

[0002] The nylon zipper formed by single filament sewing is one of the categories of zippers on the market, which has the advantages of lightweight, softness, high strength, and various color changes. The nylon zipper currently in use is made of teeth formed by extrusion molding of polyethylene terephthalate (PET single filament), and the teeth are sewn on the tape by sewing thread. The brightness of the tooth surface is usually bright, and many designers feel that the bright teeth do not match the fabric, and the surface needs to be dull.

[0003] The tooth single filament is formed by extruding PET chips through a mold, and the brightness of the mold can be adjusted to a certain extent. However, the brighter the surface of the mold, the faster the PET single filament is extruded, and the smoother the surface is. On the contrary, the rougher the surface of the mold, the more difficult it is to extrude, and the lower the efficiency is, and it is easy to break. Therefore, it is not conducive to production to form dull teeth by changing the roughness of the mold surface.

[0004] After the PET single filament is formed and the tape is sewn by the upper and lower sewing threads, if the tooth surface is directly painted, the sewing thread and the tape will be painted, and through baking, the sewing thread will be firmly attached to the teeth, and the tape will also become hard. When the puller passes through, it will damage the sewing thread. Once the sewing thread moves or is damaged, the tooth surface blocked by the sewing thread will be exposed, and a bright tooth mark will appear, affecting the aesthetic appearance. If the PET single filament is formed and the surface is treated, the tooth will not be firmly painted due to oil, and if the oil is removed, the tooth will burst open, making it difficult to join the chain. SUMMARY

[0005] The technical problem solved by the present application is to provide a manufacturing method of a matte tooth nylon zipper, which can achieve the dull effect of the teeth without affecting the chain joining effect of the zipper.

[0006] Therefore, the present application provides a manufacturing method of a matte tooth nylon zipper, which comprises the following steps:

[0007] A) Forming PET single filaments, sewing the formed teeth on the tape, and then sequentially dyeing, degreasing, and cleaning the formed teeth;

[0008] B) removing the teeth obtained in step A) from the tape;

[0009] C) sequentially degreasing and cleaning the teeth obtained in step B);

[0010] D) corroding the teeth obtained in step C);

[0011] E) Spraying matt paint on the surface of the corroded tooth, then spraying protective paint, and after baking, the obtained tooth is sewn on the dyed cloth belt.

[0012] Preferably, in step A), the temperature of the molding is 100-150°C, and the rotating speed is 2000-2500 r / min.

[0013] Preferably, in step A), the oil-removing agent is oil-removing agent and water with a mass ratio of 1:(90-99), and the cleaning temperature of the oil-removing is 40-80°C.

[0014] Preferably, in step C), the oil-removing agent is oil-removing agent and water with a mass ratio of 1:(90-99), and the cleaning temperature of the oil-removing is 40-80°C.

[0015] Preferably, in step D), the corrosion agent is selected from one or more of the following: bridging agent, primer and silane coupling agent, and the thickness of the corrosion agent is 2-5 μm.

[0016] Preferably, in step E), the number of layers of the matt paint is 1-3 layers.

[0017] Preferably, in step E), the protective paint comprises resin and solvent.

[0018] Preferably, in step E), the baking temperature is 60-100°C, and the baking time is 0.5-2 h.

[0019] Preferably, in step E), after the sewing, the method further comprises ironing the belt at a temperature of 100-150°C.

[0020] The application also provides a matt tooth nylon zipper prepared by the method, which comprises a pair of left and right identical cloth belts and teeth, the inside of the cloth belt is sewn with teeth that are interlocked, and the surface of the teeth has a matt effect.

[0021] The application provides a method for preparing a matt tooth zipper, which comprises the following steps: sewing molded teeth on a cloth belt, dyeing and removing oil, then taking off the teeth, removing fingerprints, sweat stains and other stains on the surface of the teeth by secondary oil removal, corroding the surface of the teeth to form a rough surface, and then spraying matt paint and matt varnish protective film in sequence, so that the surface of the teeth forms a matt tooth, and the matt tooth and the cloth belt are sewn again to form a matt tooth zipper. The nylon zipper prepared according to the above scheme meets the demand of designers for tooth matt, the matt tooth has high grade and strong quality, and the matt effect is firm and not easy to fall off. Meanwhile, the method provided by the application only sprays matt varnish on the teeth and protects the teeth, and does not affect the effect of the zipper. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 Structure diagram of single side of the matte tooth zipper of the present application;

[0023] Figure 2 Structure diagram of double side of the matte tooth zipper of the present application;

[0024] Figure 3 Flow chart of the production of the matte tooth zipper of the present application;

[0025] Figure 4 Physical photo of the matte tooth zipper of the present application. DETAILED DESCRIPTION

[0026] In order to further understand the present application, the preferred embodiments of the present application are described below in conjunction with the examples, but it should be understood that these descriptions are only for further illustrating the features and advantages of the present application, and are not limitations to the claims of the present application.

[0027] In view of the problem of poor matte effect of nylon teeth in the prior art, the present application provides a production method of matte tooth nylon zipper, and the specific process is shown in Figure 3 The PET monofilament is first shaped, the obtained shaped teeth are sewn on the cloth tape, and after cleaning, the teeth are removed, the teeth with the suture removed are sprayed with paint, the tooth surface is full of paint, and then the suture is sewn, so that the matte tooth effect of the zipper is very good; through the spray of matte paint process, the matte effect of the tooth surface is solved. Specifically, the embodiment of the present application discloses a production method of matte tooth nylon zipper, comprising the following steps:

[0028] A) shaping PET monofilament, sewing the obtained shaped teeth on the cloth tape, and then sequentially performing dyeing, degreasing and cleaning on the shaped teeth;

[0029] B) removing the teeth obtained in step A) from the cloth tape;

[0030] C) sequentially performing degreasing and cleaning on the teeth obtained in step B);

[0031] D) corroding the teeth obtained in step C);

[0032] E) spraying matte paint on the surface of the corroded teeth, then spraying protective paint, and after baking, sewing the obtained teeth on the dyed cloth tape.

[0033] In the manufacturing process of the fogged teeth nylon zipper, the PET monofilament is first formed, which is a polyterephthalic plastic including polyethylene terephthalate and polybutylene terephthalate. The forming is to prepare the PET monofilament into a shaped tooth. The forming method can be performed according to the method well known to those skilled in the art, and the specific implementation means thereof is not particularly limited in the present application. In the present application, the forming is specifically performed by outside forming along the center line, the temperature of the forming is 100-150°C, and the rotating speed is 2000-2500 r / min; more specifically, the temperature of the forming is 120-130°C, and the rotating speed is 2100-2300 r / min.

[0034] According to the present application, the formed tooth is then sewn on a cloth tape, and is subjected to dyeing and oil removal treatment. The oil removal treatment is to remove the oil stains on the surface of the tooth. The oil removal agent is oil removal agent and water with a mass ratio of 1:(90-99), and the cleaning temperature of the oil removal is 40-80°C; more specifically, the oil removal agent is oil removal agent and water with a mass ratio of 1:99. The cleaning temperature is 50-70°C; the ultrasonic intensity in the cleaning process is 10 levels, and the tape running speed is ≤25 Hz. After the oil removal, the tooth is cleaned.

[0035] The tooth after the cleaning is then disassembled, and the tooth and the cloth tape are removed for subsequent operations, respectively.

[0036] According to the present application, the disassembled tooth is then subjected to oil removal and cleaning in sequence; the oil removal is to remove the sweat stains, fingerprints and other stains on the surface of the tooth, so as to ensure that the surface of the tooth is clean. The oil removal agent is oil removal agent and water with a mass ratio of 1:(90-99), and the cleaning temperature of the oil removal is 40-80°C; more specifically, the oil removal agent is oil removal agent and water with a mass ratio of 1:99. The cleaning temperature is 50-70°C; the ultrasonic intensity in the cleaning process is 10 levels, and the tape running speed is ≤25 Hz. After the oil removal, the tooth is cleaned; the cleaning is to directly wind the tooth on a fixing device, so that the tooth cannot be contacted by hand, and the tooth cannot be overlapped.

[0037] The tooth is then corroded to have a certain roughness on the surface. The corrosion is to wind the tooth on a fixing device, and then spray chemical medicine water on the surface of the tooth, so as to slightly corrode and roughen the surface of the tooth, and increase the adhesion of paint. The chemical medicine water can be one or more of a bridging agent, a primer and a silane coupling agent, the bridging agent is specifically dimethyl methacrylate, and the silane coupling agent is KH-792 silane coupling agent. In the embodiment of the present application, the tooth is subjected to corrosion treatment by using a silane coupling agent mixture, which includes 2wt% of KH-792, 93wt% of water, 5wt% of acetic acid and an appropriate amount of solvent 3-methoxy propanol.

[0038] According to this invention, a matte paint is then sprayed onto the corroded tooth surface, followed by a protective varnish. The matte paint is applied 1 to 3 times. The matte paint is a type of paint well-known to those skilled in the art, and this application does not impose any particular restrictions on its specific selection. The protective varnish, also known as varnish or clear varnish, is a coating composed of a resin-based film-forming substance and a solvent. The matte paint and protective varnish can be transparent or colored, and this application does not impose any particular restrictions on their application.

[0039] This application made a series of adjustments before the matte paint spraying step on the teeth. Conventional monofilament molded teeth are directly matte treated, but the tooth surface is oily, and the teeth are easy to fall apart and difficult to put back together because they are not sewn and shaped. Therefore, it is necessary to sew the molded teeth to the fabric tape, dye and degrease them, then disassemble the teeth, and then carry out subsequent operations to ensure that the teeth have both a matte effect and a good bonding effect.

[0040] After the protective varnish is applied, the material is baked, and finally the resulting teeth are sewn onto the dyed fabric strip. The baking temperature is 60–100℃, and the time is 0.5–2 hours; specifically, the baking temperature is 70–90℃, and the time is 1–1.5 hours. After baking, the fabric strip is dyed. The sewing involves sewing the matte-finished teeth onto two fabric strips at a sewing speed of 2100–2300 r / min.

[0041] Finally, this application uses an electric ironing belt, the temperature of which is 100-150℃, specifically 130-150℃.

[0042] Furthermore, this application also provides a matte toothed nylon zipper prepared by the above method, comprising: a pair of identical fabric strips, the inner side of which is sewn with interlocking teeth, the surface of which has a matte effect.

[0043] The teeth described in this application can have a matte finish on one side, such as... Figure 1 As shown, Figure 1 In the diagram, 1 represents the suture line, 2 represents the matte layer, 3 represents the teeth, and 4 represents the fabric tape; additionally, the teeth can also have a matte finish on both sides, such as... Figure 2 As shown, Figure 2 In the diagram, 1 represents the fabric tape, and 3a and 3b are both matte layers. A photograph of the actual matte toothed nylon zipper of this application is shown below. Figure 4 As shown.

[0044] To further understand the present invention, the manufacturing method of the matte toothed nylon zipper provided by the present invention will be described in detail below with reference to the embodiments. The scope of protection of the present invention is not limited by the following embodiments.

[0045] Example 1

[0046] 1. Pretreatment of the teeth

[0047] 1) PET monofilament forming;

[0048] 2) Suture of the teeth of the cloth tape;

[0049] 3) Dyeing;

[0050] 4) Oil removal treatment; the ratio of the medicine solution is 1 kg of oil removal agent plus 99 kg of water, which is stirred uniformly; the ultrasonic intensity is 10 levels, the cleaning temperature is 50°C; the walking speed is ≤25 HZ; every shift (one shift is 10-12 hours), the medicine solution and the cleaning water in the 5 tanks need to be completely drained and replaced with new solution;

[0051] 5) Cleaning and spin-drying;

[0052] 2. Disassembly of the teeth: the suture line needs to be disassembled, the teeth and the cloth tape are taken out, and the next process is waited for;

[0053] 1) Pretreatment of the teeth before painting: secondary oil removal and dirt removal, and then cleaning to remove sweat stains, fingerprints, and impurity stains produced by contact with the device, etc. on the surface of the teeth to ensure that the surface of the teeth is clean; the ratio of the medicine solution for oil removal is 1 kg of oil removal agent plus 99 kg of water, which is stirred uniformly; the ultrasonic intensity is 10 levels, the cleaning temperature is 50°C; the walking speed is ≤25 HZ; every shift (one shift is 10-12 hours), the medicine solution and the cleaning water in the 5 tanks need to be completely drained and replaced with new solution; when cleaning, the teeth are directly wound on the fixed device so that the teeth cannot be touched by hand, and the teeth cannot be overlapped;

[0054] 2) Spraying of the treatment liquid: the clean teeth are wound on a device, the teeth cannot be overlapped, and the teeth are outwardly oriented; the chemical treatment liquid 3 μm (bridge agent, primer, or silane coupling agent) is sprayed on the surface of the teeth to corrode and make the surface of the teeth rough;

[0055] 3) Spraying of the matte paint, which is sprayed twice;

[0056] 4) Spraying of a layer of protective paint to form a film; the protective paint is transparent varnish, which is a coating composed of resin as the main film-forming material and solvent; then baking for 1 hour at a baking temperature of 75°C;

[0057] 4. Dyeing of the cloth tape;

[0058] 5. Suture of the teeth again: the teeth treated with the matte finish are sutured inside the two cloth tapes;

[0059] 6. Electric ironing of the tape at a temperature of 130°C;

[0060] 7. After processing, sizing, cloth pasting, punching, threading, cutting, and finished product inspection, the zipper is completed.

[0061] The performance of the zipper was tested, and the results are shown in Table 1.

[0062] Table 1 Performance data table of the zipper prepared in Example 1

[0063]

[0064]

[0065] Comparative Example 1

[0066] The method for making the zipper was basically the same as in Example 1, except that the step of tooth corrosion was omitted.

[0067] The performance of the zipper was tested, and the results are shown in Table 2.

[0068] Table 2 Performance data table of the zipper prepared in the comparative example

[0069]

[0070] Comparative Example 2

[0071] The method for making the zipper was basically the same as in Example 1, except that the tooth surface was sprayed with matte paint once, and the surface was not sprayed with protective paint.

[0072] The performance of the zipper was tested, and the results are shown in Table 3.

[0073] Table 3 Performance data table of the zipper prepared in Comparative Example 2

[0074]

[0075] The above description of the examples is only used to help understand the method of the present application and its core idea. It should be noted that for those skilled in the art, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

[0076] The above description of the disclosed examples enables those skilled in the art to implement or use the present application. Various modifications to the examples will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other examples without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the examples shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for manufacturing a matte-finish tooth nylon zipper, comprising the following steps: A) forming a PET monofilament, sewing the resultant formed tooth on a cloth tape, and then sequentially dyeing, degreasing and cleaning the formed tooth; B) removing the tooth obtained in step A) from the cloth tape; C) sequentially degreasing and cleaning the tooth obtained in step B); D) corroding the tooth obtained in step C); the corrosion is that the tooth obtained in step C) is wound on a fixing device, and then a corrosion reagent is sprayed on the surface of the tooth to make the surface of the tooth have a certain roughness; the corrosion reagent is selected from one or more of a bridging agent, a primer and a silane coupling agent, the bridging agent is ethylene glycol dimethacrylate, and the silane coupling agent is KH-792 silane coupling agent; E) spraying a matte finish paint on the surface of the corroded tooth, then spraying a protective paint, and after baking, sewing the resultant tooth on the dyed cloth tape; the protective paint comprises a resin and a solvent. In step A), the forming temperature is 100-150°C, and the rotating speed is 2000-2500 r / min. In step A), the degreasing reagent is a degreasing agent and water with a mass ratio of 1:(90-99), and the degreasing cleaning temperature is 40-80°C. In step C), the degreasing reagent is a degreasing agent and water with a mass ratio of 1:(90-99), and the degreasing cleaning temperature is 40-80°C. In step D), the thickness of the corrosion reagent is 2-5 μm. In step E), the number of layers of the matte finish paint is 1-3 layers. In step E), the baking temperature is 60-100°C, and the time is 0.5-2 h. In step E), after sewing, an electric ironing tape is further included, and the temperature of the electric ironing tape is 100-150°C.

2. The method of manufacturing according to claim 1, wherein, A pair of left and right identical cloth tapes and teeth, the inside of the cloth tape is sewn with teeth that bite each other, and the surface of the tooth has a matte finish effect.

3. The method of making of claim 1, wherein, ​ 4. The method of making of claim 1, wherein, ​ 5. The method of making of claim 1, wherein, ​ 6. The method of making of claim 1, wherein, ​ 7. The method of making of claim 1, wherein, ​ 8. The method according to any one of claims 1 to 7, characterized in that ​ 9. The matte finish tooth nylon zipper produced by the manufacturing method of claim 1, comprising: ​

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