Preparation method of natural degradable covering yarn

A covered yarn, a natural technology, applied in the field of textiles, can solve the problems of high chemical fiber raw materials, non-degradable covered yarns, difficult to apply to the preparation of disposable fabrics, etc., and achieves the effects of good flexibility and toughness, and low cost of raw materials

Pending Publication Date: 2021-05-28
HAINING LONGSHIDA TEXTILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems that the existing covered yarns have relatively high chemical fiber components and raw materials, most of the covered yarns are not degradable, and the raw materials of the existing covered yarns are expensive and difficult to be used in the preparation of disposable fabrics. The present invention provides A preparation method of natural degradable covered yarn

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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  • Preparation method of natural degradable covering yarn

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A preparation method of natural degradable covered yarn,

[0046] The preparation method comprises the following steps:

[0047] 1) Preparation of core thread: flax fibers are blended and twisted to obtain blended fibers. The blended fibers are placed in 220g / L amylose paste and soaked at 56°C for 20min, and then taken out for 24h room temperature aging To obtain the thick fiber of the core wire, place the thick fiber of the core wire in saturated zein / 95% ethanol aqueous solution for 60 seconds, take it out and dry it in the shade at room temperature for 6 hours to obtain the core wire;

[0048] 2) Primary covering: the polylactic acid fiber and cotton fiber are wound in parallel in the same direction and spirally wrapped on the outside of the core wire to realize the primary covering and form the yarn core;

[0049] 3) Secondary coating: the bamboo fiber yarn is coated on the outside of the yarn core, and the natural degradable coated yarn is obtained after secondary...

Embodiment 2

[0052] A preparation method of natural degradable covered yarn,

[0053] The preparation method comprises the following steps:

[0054]1) Preparation of the core thread: the flax fiber is blended and twisted to obtain the blended fiber. The blended fiber is placed in 180g / L amylose paste and soaked at 59°C for 20min, and then taken out for 22h room temperature aging To obtain the core fiber, place the core fiber in a saturated zein / 95% ethanol aqueous solution for 30 seconds, take it out and dry it in the shade at room temperature for 6 hours to obtain the core fiber;

[0055] 2) Primary covering: the polylactic acid fiber and cotton fiber are wound in parallel in the same direction and spirally wrapped on the outside of the core wire to realize the primary covering and form the yarn core;

[0056] 3) Secondary coating: the bamboo fiber yarn is coated on the outside of the yarn core, and the natural degradable coated yarn is obtained after secondary coating.

Embodiment 3

[0058] A preparation method of natural degradable covered yarn,

[0059] The preparation method comprises the following steps:

[0060] 1) Preparation of the core thread: the flax fiber is blended and then plied and twisted to obtain the blended fiber. The blended fiber is placed in 260g / L amylose paste and soaked at 59°C for 15 minutes, then taken out and aged at room temperature for 24 hours To obtain the core fiber, place the core fiber in saturated zein / 95% ethanol aqueous solution for 50 seconds, take it out and dry it in the shade at room temperature for 6 hours to obtain the core fiber;

[0061] 2) Primary covering: the polylactic acid fiber and cotton fiber are wound in parallel in the same direction and spirally wrapped on the outside of the core wire to realize the primary covering and form the yarn core;

[0062] 3) Secondary coating: the bamboo fiber yarn is coated on the outside of the yarn core, and the natural degradable coated yarn is obtained after secondary ...

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 belongs to the field of spinning, and particularly relates to a preparation method of natural degradable covering yarn. The preparation method comprises the following steps: preparation of a core wire: blending jute fibers, plying and twisting to obtain a mixed spinning fiber, infiltrating the mixed spinning fiber in gelatinized starch slurry, taking out the mixed spinning fiber, aging at room temperature to obtain a core wire coarse fiber, rapidly infiltrating the core wire coarse fiber in a zein solution, taking out the core wire coarse fiber, and drying the core wire coarse fiber at room temperature to obtain the core wire; primary coating: winding and wrapping polylactic acid fibers and cotton fibers outside the core wire in parallel to achieve primary coating, and thus forming a yarn core; and secondary coating: coating the yarn core with bamboo fiber slivers, and carrying out secondary coating to obtain the natural degradable wrap yarn. The wrap yarn prepared by the preparation method disclosed by the invention has good flexibility, elasticity and obdurability; the adopted raw materials are all natural and degradable raw materials; and the raw materials are low in cost and can be effectively used for producing disposable fabric.

Description

technical field [0001] The invention belongs to the textile field, in particular to a preparation method of a natural degradable covered yarn. Background technique [0002] Covered yarn, also known as wrapping yarn, is a new type of yarn structure, which is formed by using filament or short fiber as the core and wrapping another filament or short fiber sliver. Generally speaking, the outer covering yarn wraps the yarn core in a spiral manner, which is characterized by uniformity, fluffiness and plumpness, smooth yarn with less hairiness, high strength, and less broken ends. Compared with ordinary yarns, it has a very Stable structure and more excellent performance. [0003] The existing covered yarns are mostly used for knitted fabrics requiring high elasticity, and some are used for woven fabrics. They are ideal yarns for high-grade thin wool and linen fabrics, jacquard double-layer weft-knitted fabrics and warp-knitted fabrics. Covered yarns can be spun for both thick an...

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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IPC IPC(8): D02G3/04D02G3/32D02G3/38D06M15/11D06M15/15D06M101/06
CPCD02G3/04D02G3/38D02G3/326D06M15/11D06M15/15D10B2201/06D10B2201/04D10B2201/01D10B2201/02D10B2331/04D10B2201/10D10B2401/061D10B2401/12D10B2401/063D06M2101/06D06M2200/50
Inventor 沈建炳
Owner HAINING LONGSHIDA TEXTILE
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