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Method for warp knitting fabric by using PET cast film and slitting and stretching integrated machine

An all-in-one, cast film technology, applied in warp knitting, textiles and papermaking, single-component polyester rayon, etc., can solve the problems of unstable performance and poor product quality, and achieve good fabric quality and improved quality, and the effect of improving crystallization uniformity

Inactive Publication Date: 2021-04-06
山东滨州波涛化纤制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems of poor product quality and unstable performance in the existing process of using waste PET polyester bottles to produce fabrics, the present invention provides a method for warp knitting fabrics using PET cast film and a slitting and stretching machine. Optimize the cleaning process, raw material formula and processing technology of waste polyester bottles, and the resulting fabric has good quality, good toughness, good aging resistance and stable structural performance

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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  • Method for warp knitting fabric by using PET cast film and slitting and stretching integrated machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A kind of method that utilizes PET cast film and slitting and drawing all-in-one warp knitting fabric, comprises the steps:

[0026] (1) Recycling and cleaning: the waste PET polyester bottle is broken into 5cm fragments, cleaned by cleaning solution and rinsed with clear water, then centrifuged and dried, and then dried at low temperature to obtain PET recycled material; the cleaning solution is calculated in parts by weight, including: 30 parts of sodium hydroxide, 3 parts of diatomaceous earth, 7 parts of carboxymethyl cellulose, 50 parts of dodecyldimethylsulfopropyl betaine and 60 parts of deionized water;

[0027] (2) Prepare raw materials: by weight percentage, including the following components: PET recycled material 96%, tackifier (RX 3500) 3% and antioxidant (BASF antioxidant Irganox 1010) 1%;

[0028] (3) Crystallization drying: the raw materials are fed into the vacuum drum dryer through the feeder, heated to 150°C, and the heating time is 5h; The final mat...

Embodiment 2

[0041] A kind of method that utilizes PET cast film and slitting and drawing all-in-one warp knitting fabric, comprises the steps:

[0042] (1) Recycling and cleaning: Break the waste PET polyester bottle into 10cm pieces, after cleaning with cleaning solution and rinsing with clean water

[0043] Centrifugal drying, and then drying at low temperature to obtain PET recycled materials; the cleaning solution includes 20 parts by weight of sodium hydroxide, 4 parts of diatomaceous earth, 5 parts of carboxymethyl cellulose, dodecyl dimethyl 50 parts of sulfopropyl betaine and 80 parts of deionized water;

[0044] (2) Prepare raw materials: by weight percentage, including the following components: PET recycled material 98%, tackifier (RX 3500) 1% and antioxidant (BASF antioxidant Irganox 1010) 1%;

[0045] (3) Crystallization drying: the raw materials are fed into the vacuum drum dryer through the feeder, heated to 170°C, and the heating time is 4h; The final material is transpor...

Embodiment 3

[0051] A kind of method that utilizes PET cast film and slitting and drawing all-in-one warp knitting fabric, comprises the steps:

[0052] (1) Recycling and cleaning: the waste PET polyester bottle is broken into 5cm fragments, cleaned by cleaning solution and rinsed with clear water, then centrifuged and dried, and then dried at low temperature to obtain PET recycled material; the cleaning solution is calculated in parts by weight, including: 30 parts of sodium hydroxide, 3 parts of diatomaceous earth, 7 parts of carboxymethyl cellulose, 50 parts of dodecyldimethylsulfopropyl betaine and 60 parts of deionized water;

[0053] (2) Prepare raw materials: by weight percentage, including the following components: PET recycled material 98%, tackifier (RX 3500) 1.5% and antioxidant (BASF antioxidant Irganox 1010) 0.5%;

[0054] (3) Crystallization drying: the raw materials are fed into the vacuum drum dryer through the feeder, heated to 150°C, and the heating time is 5h; The final...

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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Abstract

The invention relates to the technical field of plastic fabric manufacturing, in particular to a method for warp knitting fabric by using a PET cast film and a slitting and stretching integrated machine. The method includes the steps of recycling and cleaning, raw material preparing, crystallizing and drying, melting and filtering, cast film forming, slitting and stretching, warp knitting fabric manufacturing and the like. The recycling and cleaning step includes the steps of cleaning liquid cleaning and water cleaning, so that later processing and forming are facilitated, and the final fabric quality is improved; proper tackifiers and antioxidants are added into raw materials, so that the ageing resistance and the toughness of a melt are improved; a crystallization layer is stabilized under the combined action of crystallization, low-temperature curing and drying, so that the crystallization uniformity is improved; and three times of heating, stretching and heating are uniform through a film casting machine and the slitting and stretching integrated machine, so that drafting orientation of PET is facilitated, and therefore the toughness of the fabric is enhanced. The obtained fabric is good in quality and flawless, the breaking strength is greater than 60 Mpa, the elongation at break is greater than 300%, the toughness is good, and the aging resistance is good; and meanwhile, the waste utilization rate is increased, and the energy-saving and environment-friendly effects are achieved.

Description

technical field [0001] The invention relates to the technical field of making plastic fabrics, in particular to a method for weaving fabrics by using a PET casting film and a cutting and stretching integrated machine. Background technique [0002] Waste mineral water bottles cannot be degraded by themselves, and direct landfilling will cause serious environmental pollution and waste of resources. Therefore, the recycling and recycling of waste mineral water bottles is of great significance. Based on this, the Chinese patent application with the patent publication number CN104178841 A provides a method for making waste polyester bottles for safety nets, including: crushing and cleaning, preparing raw materials, crystallization and drying, heat preservation, coloring and spinning, drawing and setting , Gathering, warp knitting and sewing steps, using waste polyurethane bottles instead of polypropylene resin PP as raw material to produce safety nets, which not only saves energy...

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 Applications(China)
IPC IPC(8): D04B21/00D01D5/42D01D1/00D01F6/92D01F1/10
CPCD04B21/00D01D5/426D01D1/00D01F6/92D01F1/10D10B2331/04D10B2401/063D10B2401/22
Inventor 邢光波李军
Owner 山东滨州波涛化纤制品有限公司
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