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High-wetness modulus adhesive colloid fiber and preparing method

A high wet modulus viscose and fiber technology, applied in the field of textile fibers, can solve the problems of easy deformation of fabrics, poor dimensional stability, and low hook strength, and achieve the effects of simple and easy operation, resistance to multiple deformations, and high strength

Inactive Publication Date: 2007-08-29
CHTC HELON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Viscose fiber is a kind of textile fiber widely used by people at present. Ordinary viscose fiber has excellent wearability and wide application range, but it swells violently in wet state, which makes the wet strength and modulus low, and the fabric Easy to deform, poor dimensional stability and other characteristics; at the same time, ordinary viscose fibers are not alkali-resistant and cannot withstand mercerizing treatment to improve the appearance of the fabric. When dyeing, only loose dyeing can be used, which makes the dyeing process difficult to carry out continuously. This is to a certain extent Affected people's use of viscose fiber
In order to overcome the above shortcomings, people have developed Polynosic fiber, which is characterized by high wet strength and wet modulus, but Polynosic fiber has low hook strength and high brittleness. , easy to form a fibrillated structure, and its preparation process is relatively complicated, so its product application is subject to certain restrictions

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Using the cotton pulp with a degree of polymerization of 800 and a content of α-cellulose of 96.5%, immersing in 240g / l NaOH solution for 0.4 hours to alkalize, adding 0.1% polyethylene glycol alkylamine relative to the amount of α-cellulose during dipping, and The content of hemicellulose in the solution used for impregnation is not more than 3% to generate alkali cellulose. After squeezing and pulverizing, it is aged for 8 hours at 35°C to obtain alkali cellulose containing 29% α-cellulose and 18% alkali. Relative to the amount of α-cellulose 35% CS 2 Reaction for 2 hours to generate cellulose xanthate, dissolve the cellulose xanthate and add 2.5% polyoxyethylene fatty amine relative to the amount of α-cellulose during the dissolution process to obtain α-cellulose 9.8%, NaOH5. 9%, viscosity (drop ball method) 65s, maturity (10% NH 4 CI value) 18ml, high esterification degree and high maturity cellulose xanthate spinning dope with a viscose esterification degree of 35. The...

Embodiment 2

[0014] The process steps are the same as in Example 1, except that during the scouring process, sodium hypochlorite is used for bleaching at a concentration of 0.1g / l, a temperature of 55°C, and drying to obtain a finished product with high wet modulus viscose fiber, and the obtained high wet modulus viscose fiber The dry strength is 3.8cN / dtex, the wet elastic modulus is 0.46cN / dtex, and the wet strength is 2.35cN / dtex.

Embodiment 3

[0016] Adopt wood pulp with a degree of polymerization of 500 and α-cellulose content ≥95.7%, soak it in 200g / l NaOH solution for 0.6 hours, and add 0.16% of the relative α-cellulose amount of polyethylene glycol alkylamine during dipping. The content of hemicellulose in the solution used for dipping does not exceed 3.9% to generate alkali cellulose. After squeezing and pulverizing, it is aged for 0.3 hours at 40°C to obtain alkali cellulose containing 34.2% of α-cellulose and 18.3% of NaOH. , Adding 44% CS relative to α-cellulose 2 Reaction for 2.5 hours to generate cellulose xanthate, dissolve the cellulose xanthate and add 1.2% polyoxyethylene fatty amine relative to the amount of α-cellulose during the dissolution process to obtain 4.8% α-cellulose, NaOH4. 5%, viscosity (drop ball method) 65s, maturity (10% NH 4 CI value) 35ml, high esterification degree and high maturity cellulose xanthate spinning dope with viscose esterification degree of 46. Using wet molding, the spinning...

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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PUM

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Abstract

The invention discloses a high-humidity modulus viscose fiber with dry strength of 3.5-6.0cN / dtex, wet elastic modulus of 0.35-0.60cN / dtex and wet strength of 2.0-4.5cN / dtex, and prepared of cellulose pulp with degree of polymerization of 500-1200 and alpha-cellulose content >=95% by the steps of dip-basifying, squeezing, ageing, yellowing, dissolving, wet spinning moulding, drafting, etc. And it has features of higher intensity and wet modulus, better loop strength performance, and lower brittleness; and the fabrics made by it has features of high intensity, multiple deformation resistance, alkali resistance, etc.

Description

Technical field [0001] The invention relates to a textile fiber, in particular to a viscose fiber with a high wet modulus and a method for preparing the high wet modulus viscose fiber. Background technique [0002] Viscose fiber is a kind of textile fiber that is widely used by people at present. Ordinary viscose fiber has excellent wearability and a wide range of use, but it swells violently when it exists in a wet state, resulting in low wet strength and modulus. It is easy to deform and has poor dimensional stability. At the same time, ordinary viscose fiber is not alkali resistant and cannot withstand the mercerizing treatment to improve the appearance of the fabric. When dyeing, only loose dyeing can be used, which makes the dyeing process difficult to continue. This is to a certain extent Affected people's use of viscose fiber. In order to overcome the above shortcomings, people developed Polynosic fiber, which is characterized by relatively high wet strength and wet modulu...

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): D01F2/08D01D5/06D01D5/253D06L3/02D06L4/13D06L4/23
Inventor 逄奉建刘海洋王乐军刘建华吕翠莲
Owner CHTC HELON
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