A kind of preparation method of antifouling cloth for clothing production

An antifouling and cloth technology, applied in the field of fabrics, can solve the problems of loss of moisture absorption, hardening of fabrics, and inability to wash, and achieve the effects of increasing the flexibility of polyester, improving water and oil repellency, and increasing air permeability

Active Publication Date: 2020-11-24
宁波维尼服饰有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The three-proofing agent has appeared on the market more than ten years ago, but after finishing the textiles with the three-proofing agent, the three-proofing agent penetrates into the fibers of the fabric, making the fiber lose its hygroscopicity. If the clothing is worn next to the skin, it will lose its moisture absorption. The ability to sweat, and the handle is hard, which affects the comfort of clothing. Therefore, waterproof and anti-fouling fabrics have not been popularized in the clothing market for daily wear. In addition, the three-proof finishing process usually uses fluorine-containing additives. PFOA (perfluorooctanoic acid and its salts), PFOS (perfluorooctane sulfonate), APEO (alkylphenol polyoxyethylene ether) and other harmful biological substances will be discharged into the environment, seriously affecting people's health and the earth's ecological environment
However, there is an obvious shortcoming in the foam coating. Due to the limitation of the performance of the foaming agent and the foam stabilizer, the amount of liquid carried by the foam is very small, and the formed coating is very thin, and the combination of the coating and the fiber is not strong enough. After the layered textiles are washed with water, the coating will be destroyed, so that the textiles will lose their waterproof and antifouling effect. This shortcoming of not being resistant to washing limits the promotion of single-sided antifouling technology.
If the concentration of the antifouling agent is simply increased, on the one hand, it will be limited by the solubility; on the other hand, if the concentration of the antifouling agent is too high and the amount of the solution is small, the antifouling agent cannot penetrate into the fiber under the traction of the solution. The surface of the fabric that is easy to accumulate prevents most of the antifouling agents from contacting with the active groups of the fibers and cannot form a stable binding force. Simple washing can wash off the antifouling agents on the surface, so that the antifouling function of the fabric is fast. In addition, the accumulation of higher concentration of antifouling agent on the surface of the fabric will also cause the fabric to harden and affect the feel of the fabric

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • A kind of preparation method of antifouling cloth for clothing production
  • A kind of preparation method of antifouling cloth for clothing production
  • A kind of preparation method of antifouling cloth for clothing production

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A preparation method for an antifouling cloth used in clothing production, specifically comprising the following steps:

[0048] Synthesis of S1, myristyl chloride

[0049] The reaction formula is as follows:

[0050]

[0051] Dissolve 120 mol of myristic acid in chloroform, add 600 mol of thionyl chloride, heat up to reflux, and react for 2 hours. After the reaction, concentrate under reduced pressure to remove chloroform and unreacted thionyl chloride to obtain myristyl chloride 2. The yield is 98.6%;

[0052] Synthesis of S2, 2,5-bis(tetradecyl)terephthalic acid

[0053] The reaction formula is as follows:

[0054]

[0055] Dissolve 100 mol of 2,5-dihydroxyterephthalic acid 3 in dichloromethane, add 120 mol of pyridine and stir at room temperature for 15 minutes, then put it in an ice bath, add 120 mol of tetradecanoyl chloride 2 dropwise while stirring, after the dropwise addition is completed, The reaction was stirred for 1 h under ice bath to obtain 2,5-...

Embodiment 2

[0066] A preparation method for an antifouling cloth used in clothing production, specifically comprising the following steps:

[0067] Synthesis of S1, myristyl chloride

[0068] The reaction formula is as follows:

[0069]

[0070] Dissolve 150 mol of myristic acid in chloroform, add 900 mol of thionyl chloride, raise the temperature to reflux, and react for 2 hours. After the reaction, concentrate under reduced pressure to remove chloroform and unreacted thionyl chloride to obtain myristyl chloride 2. The yield is 99.2%;

[0071] Synthesis of S2, 2,5-bis(tetradecyl)terephthalic acid

[0072] The reaction formula is as follows:

[0073]

[0074] Dissolve 100mol 2,5-dihydroxyterephthalic acid 3 in dichloromethane, add 140mol pyridine and stir at room temperature for 15-20min, then put it in an ice bath, add 140mol tetradecanoyl chloride 2 dropwise while stirring, and the dropwise addition is complete Afterwards, the reaction was stirred for 1 h in an ice bath to obt...

Embodiment 3

[0085] A preparation method for an antifouling cloth used in clothing production, specifically comprising the following steps:

[0086] Synthesis of S1, myristyl chloride

[0087] The reaction formula is as follows:

[0088]

[0089] Dissolve 130 mol of myristic acid in chloroform, add 630 mol of thionyl chloride, heat up to reflux, and react for 2.5 hours. After the reaction, concentrate under reduced pressure to remove chloroform and unreacted thionyl chloride to obtain myristyl chloride 2 , the yield is 98.9%;

[0090] Synthesis of S2, 2,5-bis(tetradecyl)terephthalic acid

[0091] The reaction formula is as follows:

[0092]

[0093] Dissolve 100mol of 2,5-dihydroxyterephthalic acid 3 in dichloromethane, add 130mol of pyridine and stir at room temperature for 17min, then put it in an ice bath, add 125mol of tetradecanoyl chloride 2 dropwise while stirring, after the dropwise addition, The reaction was stirred for 1 h under ice bath to obtain 2,5-bis(tetradecyl)ter...

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Abstract

The invention discloses an antifouling cloth preparation method for garment production. The antifouling cloth preparation method includecomprises the following steps: S1, synthesizing tetradecanoyl chloride; S2, synthesizing 2,5-di(tetradecanoate)terephthalic acid; S3, adding terephthalic acid, the 2,5-di(tetradecanoate)terephthalic acid, ethylene glycol and a tetrabutyl titanate catalyst into a stainless steel reaction kettle for esterification to obtain an oligomer 7; S4, after esterification and pre-polymerization in the step S3, increasing the temperature again, and gradually performing vacuumizing for pre-condensation to obtain a polyester high polymer 8; S5, adding the polyester high polymer 8, a dispersant, a defoaming agent and a softener into a screw extruder for melt extrusion, performing melt filtration, liquid phase tackifying, extrusion from spin holes to form strips, side blow cooling, wire oiling and winding forming to obtain polyester high-strength yarns, and spinning the polyester high-strength yarns into antifouling cloth. The antifouling cloth preparation method has the advantages that the method is scientific and reasonable, the obtained antifouling cloth has high waterproofing and antifouling performance and is resistant to cleaning, and the service life of the cloth is prolonged.

Description

technical field [0001] The invention belongs to the technical field of fabrics, and in particular relates to a method for preparing antifouling fabrics used in clothing production. Background technique [0002] As people's requirements for living standards are getting higher and higher, various functional textiles emerge in an endless stream. Whether you are an adult or a child, it is inevitable that you will accidentally stain your clothes, such as red wine, coffee, milk, vegetable soup, etc., and the more you wipe the stain, the more ugly it will be. If it is in a public place, it will affect the individual. Image, if it is a child, it is more common to make clothes dirty, which often makes mothers busy in order to keep their children clean. Therefore, clothing with waterproof and antifouling functions has a great market prospect. The three-proofing agent has appeared on the market more than ten years ago, but after finishing the textiles with the three-proofing agent, th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/92D01F1/10C08G63/183C07C67/08C07C69/28
CPCC07C67/08C08G63/183D01F1/10D01F6/92C07C69/28
Inventor 不公告发明人
Owner 宁波维尼服饰有限公司
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