Anti-shrinkage tape containing fusible yarn and process for making same

By using a weaving method with fusible fiber-coated yarn and combining it with low-melting-point polyester, the problems of webbing deformation and insufficient elasticity were solved, and a webbing with shrinkage resistance and elasticity was produced.

CN117661177BActive Publication Date: 2026-04-21KAIPING KELIAN KNITTERS DEV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
KAIPING KELIAN KNITTERS DEV
Filing Date
2023-12-11
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Webbing is prone to deformation, shrinkage, curling, and low elasticity during use, which affects its performance.

Method used

A weaving method using fusible fiber-coated yarn is employed, and a shrink-resistant webbing is prepared by combining low-melting-point polyester, tackifier, and flexibility agent. The fusible fiber is melted at high temperature to bond and fix the warp and weft yarns, and combined with steam setting treatment, the shrink-resistant properties and elasticity of the webbing are improved.

Benefits of technology

This design ensures that the webbing is not easily deformed, shrunken, or curled during use, while maintaining good elasticity and anti-shrinkage properties.

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Abstract

This application relates to the field of textiles, specifically disclosing a shrink-resistant webbing containing fusible fiber covered yarn and its preparation process. The shrink-resistant webbing containing fusible fiber covered yarn is woven from warp and weft yarns. The warp yarns include several covered yarns and / or several yarns. The outer layer material of the covered yarn is made of at least one fusible fiber and several yarns, and the core layer material of the covered yarn is made of at least one elastic thread. The fusible fiber is made from the following raw materials in parts by weight: 60-80 parts low-melting-point polyester, 5-10 parts tackifier, and 5-8 parts softener. The preparation method involves: covering yarn preparation – warp and weft weaving to form a semi-finished shrink-resistant webbing containing fusible fiber covered yarn – steaming and setting to produce the shrink-resistant webbing containing fusible fiber covered yarn. The preparation process of this application is simple, and the resulting shrink-resistant webbing containing fusible fiber covered yarn is not easily deformed, does not curl, and does not shrink, exhibiting good elasticity and good applicability.
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Description

Technical Field

[0001] This application relates to the field of textiles, and more specifically, to a shrink-resistant webbing containing fusible fiber-coated yarn and its manufacturing process. Background Technology

[0002] Webbing is a narrow or tubular fabric woven from warp and weft threads. Webbing comes in a variety of styles and is widely used in clothing, footwear, and bags as connecting or decorative straps.

[0003] Webbing generally has moderate elasticity and softness. After repeated stretching during use, webbing is prone to deformation. The edges of the webbing may shrink, curl, and wrinkle, reducing its performance.

[0004] To address the issue of webbing easily deforming, we usually use yarns with lower elasticity or increase the yarn weaving density during the weaving process. However, this results in a generally stiffer webbing texture with lower elasticity and limited stretching, which reduces the comfort of using the webbing. Therefore, further improvements are needed. Summary of the Invention

[0005] To address the issues of conventional webbing being prone to deformation, shrinkage, wrinkling, curling, and low elasticity during use, thus reducing its performance, this application provides a shrink-resistant webbing containing fusible fiber-coated yarn and its preparation process.

[0006] In a first aspect, this application provides a shrink-resistant webbing containing fusible wire-coated yarn, employing the following technical solution: A shrink-resistant webbing containing fusible wire-coated yarn is woven from warp and weft yarns, wherein the warp yarns include a plurality of covering yarns and / or a plurality of yarns, the outer layer material of the covering yarn is made of at least one fusible wire and a plurality of yarns, the core layer material of the covering yarn is made of at least one elastic thread, and the fusible wire is made from the following raw materials in parts by weight:

[0007] 60-80 parts of low melting point polyester

[0008] 5-10 parts of tackifier

[0009] 5-8 parts of flexibility agent.

[0010] By adopting the above technical solution, the anti-shrink webbing of this application has good elasticity and anti-shrink performance, and is not easily deformed or curled during use, thus having good applicability.

[0011] This application uses an outer material containing fusible fibers to cover elastic yarns, forming a covered yarn. Weft yarns and warp yarns containing the covered yarns are then woven together to form an anti-shrink webbing. Under the action of the fusible fibers, which melt at high temperatures and have good adhesion, the warp and weft yarns can be bonded together at the intersections. This allows the warp and weft yarns of the resulting anti-shrink fabric to be well fixed, reducing the likelihood of deformation, shrinkage, or curling of the anti-shrink webbing.

[0012] However, after the fusible wire is heated and fixed to the warp and weft yarns of the shrink-proof webbing, the elasticity of the shrink-proof webbing will be reduced. Therefore, this application further improves the fusible wire so that the shrink-proof webbing woven from the fusible wire of this application can have good shrink-proof performance as well as good elasticity.

[0013] In this application, low-melting-point polyester is used as the main adhesive material. Tackifiers and flexible agents are added to the low-melting-point polyester. The tackifier improves elasticity and adhesion, so that the shrink-proof webbing has good elasticity and shrink-proof properties during use. The flexible agent can further improve the flexibility of the fusible wire and further improve the elasticity of the shrink-proof webbing.

[0014] Preferably, the low-melting-point polyester fiber is made from the following raw materials in parts by weight:

[0015] 15-25 parts of aliphatic dicarboxylic acids

[0016] 8-16 parts of aromatic dicarboxylic acids

[0017] 20-30 parts of diol

[0018] 4-8 parts of polyoxyethylene ether

[0019] 1-3 parts of polyethylene glycol diglycidyl ether

[0020] Stabilizer 0.6-1.2 parts

[0021] Catalyst 0.01-0.03 parts.

[0022] By adopting the above technical solution, using aliphatic and aromatic diacids as diacids, and under the action of a catalyst, esterification and polycondensation reactions are carried out with diols to obtain the low-melting-point polyester of this application. Polyoxyethylene ether has a short-chain ether structure, and polyethylene glycol diglycidyl ether has a long-chain polyepoxy structure. The two play a good synergistic role, which to a certain extent disrupts the regularity of the polyester macromolecular chain arrangement, increases the flexibility of the molecular chain, and thus reduces the crystallinity of the final polyester, thereby lowering the melting point and thermal properties of the polyester. The stabilizer plays a good stabilizing role, which can stabilize the reaction activity, so that the esterification and polycondensation reactions proceed stably, improve the degree of esterification and polycondensation reactions, and enhance the melting stability of the low-melting-point polyester.

[0023] Preferably, the low-melting-point polyester is prepared by the following steps: adding aliphatic diacid, aromatic diacid, diol, polyoxyethylene ether and polyethylene glycol diglycidyl ether to a reaction device, stirring evenly, adding a catalyst, heating to 200-220°C, and reacting under a vacuum of 0.5-1 kPa for 1-2 hours, then heating to 250-270°C, and reacting under a vacuum of 0.05-0.1 kPa for 0.5-1 hours, then extruding, cooling and granulating to obtain the low-melting-point polyester.

[0024] By adopting the above technical solution, the components are first uniformly mixed, then esterified under optimal conditions, and then polycondensed under optimal conditions to obtain a low-melting-point polyester with stable performance.

[0025] Preferably, the aliphatic dicarboxylic acid is oxalic acid and / or succinic acid, the aromatic dicarboxylic acid is isophthalic acid, and the diol is propylene glycol and / or butanediol.

[0026] By adopting the above technical solution, the use of the above aliphatic diacids, aromatic diacids and diols can effectively reduce the melting point of the obtained polyester, thereby improving the thermal stability and adhesion of the obtained fusible wire.

[0027] Preferably, the stabilizer is composed of triethyl phosphate and sodium phytate, wherein the weight ratio of triethyl phosphate to sodium phytate is 1:(0.1-0.3).

[0028] By adopting the above technical solution, triethyl phosphate has good coordination stability and can form a good coordination effect with the metal ions of the catalyst, thereby controlling the catalytic activity of the catalyst and reducing the excessive cross-linking of polyester molecular chain segments due to excessively high catalytic activity, which would increase the melting point of the polyester. Sodium phytate is a mild chelating agent that can relatively stably chelate metal ions. Using triethyl phosphate and sodium phytate in a better ratio as stabilizers can effectively improve the thermal stability of the obtained low-melting-point polyester.

[0029] Preferably, the tackifier is composed of rosin resin and aminosilane coupling agent, wherein the weight ratio of rosin resin to aminosilane coupling agent is 1:(0.2-0.4).

[0030] By adopting the above technical solution, rosin resin has good elasticity, toughness and tackifying properties, while aminosilane coupling agent has good adhesion and coupling properties. Using a better ratio of rosin resin and aminosilane coupling agent as tackifiers can improve the bonding stability of the fusible wire, thereby improving the waterproof and water-resistant properties of the shrink-proof webbing, and at the same time, can better improve the elasticity of the shrink-proof webbing.

[0031] Preferably, the flexibility agent is maleic anhydride-grafted POE.

[0032] By adopting the above technical solution, maleic anhydride-grafted POE has good flexibility, and the shrink-proof webbing made from the fusible wire obtained by this method has good elasticity.

[0033] Preferably, the fusible wire includes the following preparation steps:

[0034] Low-melting-point polyester, tackifier, and flexibility agent are added to a reaction device, heated to 160-180℃, melted and mixed evenly, and then spun and cooled to obtain fusible yarn.

[0035] By employing the above technical solution, the raw materials are melted at an optimal temperature, followed by spinning and cooling, resulting in a stable fusible fiber.

[0036] Secondly, this application provides a method for preparing a shrink-resistant webbing containing fusible fiber-coated yarn, using the following technical solution:

[0037] A method for preparing a shrink-resistant webbing containing fusible fiber-coated yarn includes the following steps:

[0038] S1. Blend at least one fusible wire with several yarns to form an outer layer material, and use the outer layer material to weave and cover the elastic yarn to make covered yarn;

[0039] S2. The weft yarn and the warp yarn, which consists of several covered yarns and several yarns, are woven together to produce a semi-finished anti-shrink webbing containing fusible wire covered yarn;

[0040] S3. The anti-shrink webbing semi-finished product containing fusible fiber coated yarn is steamed and cooled to obtain anti-shrink webbing containing fusible fiber coated yarn.

[0041] By adopting the above technical solution, a shrink-resistant webbing containing fusible fiber-coated yarn with stable performance can be woven.

[0042] Preferably, the steam temperature in step S3 is 80-90℃ and the steaming time is 10-20min.

[0043] By adopting the above technical solution, steaming under optimal temperature and time conditions can uniformly melt the hot melt wires of the shrink-proof webbing, and uniformly bond the warp and weft yarns at the interlacing points, thereby improving the shrink-proof performance of the resulting shrink-proof webbing and making it less prone to bending and deformation.

[0044] In summary, this application has the following beneficial effects:

[0045] 1. The shrink-proof webbing containing fusible fiber-coated yarn of this application uses an outer layer material containing fusible fiber to cover elastic yarn, forming a coated yarn. The weft yarn and warp yarn containing the coated yarn are woven to support the shrink-proof webbing. Under the action of the fusible fiber, the fusible fiber will melt when exposed to high temperature, and has good adhesion. It can bond the intersection of warp and weft yarns, thereby making the warp and weft yarns of the resulting shrink-proof fabric better fixed, reducing the problems of deformation, shrinkage or curling of the shrink-proof webbing. At the same time, low-melting-point polyester is used as the main adhesive material. Tackifiers and softeners are added to the low-melting-point polyester. The tackifier plays a role in improving elasticity and adhesion, so that the shrink-proof webbing has good elasticity and shrinkage resistance during use. The softener can further improve the flexibility of the fusible fiber and further improve the elasticity of the shrink-proof webbing.

[0046] 2. By using aliphatic diacids, aromatic diacids, diols, polyoxyethylene ethers, polyethylene glycol diglycidyl ether, and stabilizers, a low-melting-point polyester with stable performance is prepared under the action of a catalyst. The resulting anti-shrinkage fabric has good anti-shrinkage properties as well as good elasticity.

[0047] 3. The preparation process of this application involves first blending fusible fibers and yarns, then covering them with elastic yarns to form covered yarns. The warp and weft yarns containing the covered yarns are then woven together and steam-set to obtain the shrink-resistant webbing containing fusible fiber covered yarns of this application, which has good shrink-resistant properties as well as good elasticity. Detailed Implementation

[0048] The present application will be further described in detail below with reference to the embodiments.

[0049] The following are the sources and specifications of some of the raw materials used in this application. The raw materials used in the preparation examples and embodiments of this application can all be obtained commercially:

[0050] 1. Polyoxyethylene ether: Polyethylene oxide, molecular weight 200-600;

[0051] 2. Polyethylene glycol diglycidyl ether: content 99%, epoxy value 0.56-0.67 eq / 100g;

[0052] 3. Triethyl phosphate: content 98.5%, molecular weight 224;

[0053] 4. Rosin resin: Natural rosin resin, content 99%;

[0054] 5. Maleic anhydride grafted with POE: Mitsui, Japan, melting point 110℃.

[0055] Preparation example of low melting point polyester

[0056] Preparation Example 1

[0057] Preparation Example 1 discloses a low-melting-point polyester, which is prepared by the following steps:

[0058] 15 kg of succinic acid (as an aliphatic dicarboxylic acid), 8 kg of isophthalic acid (as an aromatic dicarboxylic acid), 20 kg of butanediol (as a diol), 4 kg of polyoxyethylene ether, 1 kg of polyethylene glycol diglycidyl ether, and 0.6 kg of triethyl phosphate (as a stabilizer) were added to a reactor and stirred evenly. Then, 0.01 kg of dibutyltin dibenzoate was added as a catalyst, and the temperature was raised to 200°C. The reaction was carried out under a vacuum of 0.5 kPa for 1 hour. Then, the temperature was raised to 250°C and the reaction was carried out under a vacuum of 0.05 kPa for 0.5 hours. Finally, the product was extruded, cooled, and granulated to obtain a low-melting-point polyester.

[0059] Preparation Examples 2-3

[0060] The difference between Preparation Example 2-3 and Preparation Example 1 lies in the amount of raw materials used and the preparation conditions, as detailed in Table 1 below.

[0061] Table 1. Raw material amounts and preparation conditions for preparation examples 1-3

[0062]

[0063]

[0064] Preparation Example 4

[0065] The difference between Preparation Example 4 and Preparation Example 1 is that the stabilizer is different. The amount of stabilizer used in Preparation Example 4 is 0.6 kg, which is composed of triethyl phosphate and sodium phytate in a weight ratio of 1:0.1. Everything else is the same as in Preparation Example 1.

[0066] Preparation Example 5

[0067] The difference between Preparation Example 5 and Preparation Example 1 is that the stabilizer is different. The amount of stabilizer used in Preparation Example 5 is 0.6 kg, which is composed of triethyl phosphate and sodium phytate in a weight ratio of 1:0.3. Everything else is the same as in Preparation Example 1.

[0068] Preparation of Comparative Example 1

[0069] The difference between Comparative Example 1 and Preparation Example 1 is that the polyoxyethylene ether is replaced with an equal amount of polyethylene glycol diglycidyl ether, otherwise the same as Preparation Example 1.

[0070] Preparation of Comparative Example 2

[0071] The difference between Comparative Example 2 and Preparation Example 1 is that polyethylene glycol diglycidyl ether was replaced with polyoxyethylene ether in equal amounts; otherwise, they were the same as in Preparation Example 1.

[0072] Preparation of Comparative Example 3

[0073] The difference between Comparative Example 3 and Preparation Example 1 is that polyoxyethylene ether and polyethylene glycol diglycidyl ether are replaced with diethylene glycol in equal amounts, while the rest is the same as Preparation Example 1.

[0074] Example of fusible wire preparation

[0075] Preparation Example 6

[0076] Preparation Example 6 discloses a fusible wire, which is prepared by the following steps:

[0077] 6 kg of low-melting-point polyester prepared in Preparation Example 1, 0.5 kg of rosin resin as a tackifier, and 0.5 kg of maleic anhydride-grafted POE as a flexibility agent were added to the reaction equipment. The mixture was heated to 160°C and melted for 1 hour. After being mixed evenly, the mixture was extruded, spun, and cooled to obtain a fusible fiber. The specification of the fusible fiber obtained in this example is 70D.

[0078] Preparation Examples 7-8

[0079] The difference between Preparation Examples 7-8 and Preparation Example 6 is that the source of the low-melting-point polyester is different, and the preparation conditions and parameters are also different, as detailed in Table 2 below.

[0080] Table 2. Preparation conditions and sources of low-melting-point polyesters for Preparation Examples 6-8

[0081]

[0082]

[0083] Preparation Examples 9-13

[0084] The difference between Preparation Examples 9-13 and Preparation Example 6 is that the source of the low-melting-point polyester is different, as detailed in Table 3 below.

[0085] Table 3. Sources of the low-melting-point polyesters used in Preparation Examples 9-13

[0086] Preparation Example Sources of low-melting-point polyester Preparation Example 9 Preparation Example 4 Preparation Example 10 Preparation Example 5 Preparation Example 11 Preparation of Comparative Example 1 Preparation Example 12 Preparation of Comparative Example 2 Preparation Example 13 Preparation of Comparative Example 3

[0087] Preparation Example 14

[0088] The difference between Preparation Example 14 and Preparation Example 9 is that the tackifier is different. The amount of tackifier used in Preparation Example 14 is 0.5 kg, which is composed of rosin resin and aminosilane coupling agent in a weight ratio of 1:0.2. The aminosilane coupling agent is γ-aminopropyltriethoxysilane. Everything else is the same as in Preparation Example 9.

[0089] Preparation Example 15

[0090] The difference between Preparation Example 15 and Preparation Example 9 is that the tackifier is different. The amount of tackifier used in Preparation Example 15 is 0.5 kg, which is composed of rosin resin and aminosilane coupling agent in a weight ratio of 1:0.4. The aminosilane coupling agent is γ-aminopropyltriethoxysilane. Everything else is the same as in Preparation Example 9.

[0091] Preparation of Comparative Example 4

[0092] The difference between Comparative Example 4 and Preparation Example 4 is that the tackifying resin was replaced with an equal amount of low-melting-point polyester, while the rest was the same as Preparation Example 4.

[0093] Example

[0094] Example 1

[0095] Example 1 discloses a shrink-proof webbing containing fusible wire-covered yarn, which is woven from warp and weft yarns. The weft yarn is 78D / 68F nylon filament, and the warp yarn includes several covering yarns and several yarns, which are 44D / 34F nylon filaments. The covering yarn consists of an inner layer material and an outer layer material. The inner layer material is supported by at least one elastic thread, which can be selected as 100D spandex elastic thread. In this example, the inner layer material is one elastic thread. The outer layer material consists of at least one fusible wire and several yarns, which are 44D / 34F nylon filaments. In this example, the fusible wire is preferably one.

[0096] The above-mentioned process for preparing shrink-resistant webbing containing fusible fiber-coated yarn includes the following steps:

[0097] S1. The fusible wire obtained in Preparation Example 4 is blended with several yarns to form an outer layer material. The elastic yarn is then woven and covered with the outer layer material to produce covered yarn.

[0098] S2. The weft yarn and the warp yarn, which consists of several covered yarns and several yarns, are woven together to produce a semi-finished anti-shrink webbing containing fusible wire covered yarn;

[0099] S3. The anti-shrink webbing semi-finished product containing fusible fiber-coated yarn is steamed at 80℃ for 10 minutes and then cooled to obtain anti-shrink webbing containing fusible fiber-coated yarn.

[0100] Example 2-3

[0101] The difference between Examples 2-3 and Example 1 is that the source of the fusible wire is different and the preparation process parameters are also different, as detailed in Table 4 below.

[0102] Table 4. Sources and preparation process parameters of fusible wires in Examples 1-3

[0103]

[0104] Examples 4-10

[0105] The difference between Examples 4-10 and Example 1 is that the source of the fusible wire is different, as detailed in Table 5 below.

[0106] Table 5. Source of fusible wire in Examples 4-10

[0107]

[0108]

[0109] Comparative Example

[0110] Comparative Example 1

[0111] The difference between Comparative Example 1 and Example 1 is that the tackifying resin was replaced with an equal amount of low-melting-point polyester, while the rest was the same as Example 1.

[0112] Performance testing

[0113] The following tests were conducted on the performance of the shrink-resistant webbing containing fusible fiber-coated yarn prepared in Examples 1-10 and Comparative Example 1:

[0114] (1) Elongation:

[0115] The elongation of the shrink-resistant webbing was tested according to the test methods in GB / T 3923.1-2013 Textiles - Tensile Properties - Part 1, and the test data were recorded.

[0116] (2) Shrinkage rate:

[0117] According to the test method in AATCC 135 shrinkage rate, the shrinkage rate of the anti-shrinkage webbing was tested and the test data was recorded.

[0118] (3) Appearance shrinkage:

[0119] According to the test methods in GB / T 3923.1-2013 Textiles - Tensile Properties - Part 1, the tensile properties of the anti-shrink webbing were tested. After 50 stretches, the bending or curling of the anti-shrink webbing was observed, and the results were recorded.

[0120] The following are the performance test data of the shrink-proof webbing containing fusible fiber-coated yarn in Examples 1-10 and Comparative Example 1. Please refer to Table 6 below for details.

[0121] Table 6 Performance test data of Examples 1-10 and Comparative Example 1

[0122]

[0123]

[0124] Combining Examples 1-3 and Examples 4-8 with Table 6, it can be seen that the shrink-resistant fabric made by weaving fusible yarns from the low-melting-point polyester prepared by the method of this application has good elasticity and low shrinkage rate. In Examples 4-5, the use of a better proportion of stabilizer can improve the elasticity of the shrink-resistant fabric and reduce the shrinkage rate. In Examples 6-8, the polyoxyethylene ether and polyethylene glycol diglycidyl ether of this application were not used. The fusible yarns prepared by these examples were used to make shrink-resistant fabrics. The elongation of the shrink-resistant fabrics decreased and the shrinkage rate increased significantly. This indicates that using the low-melting-point polyester of this application as fusible yarns can better bond and fix the weft yarns, so that the shrink-resistant fabric has good shrinkage resistance and good elasticity.

[0125] As can be seen from Examples 1-5 and 9-10, Comparative Example 1, and Table 6, the use of the tackifier of this application to prepare fusible wire can improve the elasticity of the anti-shrinkage fabric while reducing the shrinkage rate. In Comparative Example 1, no tackifier was added, and the elongation of the resulting anti-shrinkage fabric was significantly reduced, while the shrinkage rate was significantly increased, and obvious curling occurred.

[0126] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A shrink-resistant webbing containing fusible fiber-coated yarn, characterized in that, It is woven from warp and weft yarns, wherein the warp yarns include a plurality of covering yarns and a plurality of 44D / 34F nylon filaments; the outer layer material of the covering yarn is made of at least one fusible yarn and a plurality of 44D / 34F nylon filaments, and the core layer material of the covering yarn is made of at least one elastic yarn, wherein the fusible yarn is made from the following raw materials in parts by weight: 60-80 parts of low melting point polyester 5-10 parts of tackifier 5-8 parts of flexibility agent; The low-melting-point polyester is obtained from the following raw materials in parts by weight: 15-25 parts of aliphatic dicarboxylic acids 8-16 parts of aromatic dicarboxylic acids 20-30 parts of diol 4-8 parts of polyoxyethylene ether 1-3 parts of polyethylene glycol diglycidyl ether Stabilizer 0.6-1.2 parts Catalyst 0.01-0.03 parts; The stabilizer is composed of triethyl phosphate and sodium phytate, and the weight ratio of triethyl phosphate to sodium phytate is 1:(0.1-0.3). The tackifier is composed of rosin resin and aminosilane coupling agent, wherein the weight ratio of rosin resin to aminosilane coupling agent is 1:(0.2-0.4); the flexibility agent is maleic anhydride-grafted POE.

2. The anti-shrink webbing containing fusible fiber-coated yarn according to claim 1, characterized in that, The low-melting-point polyester is prepared by the following steps: aliphatic diacid, aromatic diacid, diol, polyoxyethylene ether, polyethylene glycol diglycidyl ether and stabilizer are added to a reaction device, stirred evenly, a catalyst is added, the temperature is raised to 200-220℃, and the reaction is carried out under a vacuum of 0.5-1KPa for 1-2 hours. Then the temperature is raised to 250-270℃, and the reaction is carried out under a vacuum of 0.05-0.1KPa for 0.5-1 hours. Finally, the product is extruded, cooled and granulated to obtain the low-melting-point polyester.

3. The anti-shrink webbing containing fusible fiber-coated yarn according to claim 2, characterized in that, The aliphatic dicarboxylic acid is oxalic acid and / or succinic acid, the aromatic dicarboxylic acid is isophthalic acid, and the diol is propylene glycol and / or butanediol.

4. A shrink-resistant webbing containing fusible fiber-coated yarn according to any one of claims 1-3, characterized in that, The fusible wire includes the following preparation steps: Low-melting-point polyester, tackifier, and flexibility agent are added to a reaction device, heated to 160-180℃, melted and mixed evenly, and then spun and cooled to obtain fusible yarn.

5. A process for preparing a shrink-resistant webbing containing fusible fiber-coated yarn as described in any one of claims 1-4, characterized in that, Includes the following steps: S1. Blend at least one fusible wire with several 44D / 34F nylon filaments to form an outer layer material, and use the outer layer material to weave and cover the elastic yarn to make covered yarn; S2. The weft yarn and the warp yarn, which consists of several covered yarns and several 44D / 34F nylon filaments, are woven together to produce a semi-finished anti-shrink webbing containing fusible wire covered yarn. S3. The anti-shrink webbing semi-finished product containing fusible fiber coated yarn is steamed and cooled to obtain anti-shrink webbing containing fusible fiber coated yarn.

6. The preparation process of a shrink-resistant webbing containing fusible fiber-coated yarn according to claim 5, characterized in that, The steam temperature in step S3 is 80-90℃, and the steaming time is 10-20 minutes.

Citation Information

Patent Citations

  • Elastic webbing and method for producing the same

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