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A kind of high wet modulus viscose fiber and preparation method thereof

A high wet modulus viscose and fiber technology, which is applied in the field of viscose fiber, can solve the problems of increased production and research and development costs, difficulties in adjusting production processes, and long production cycles, and achieves improved wet modulus, easy industrialization, and wet molding high volume effect

Active Publication Date: 2021-08-27
赛得利(盐城)纤维有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The MODAL fiber developed by LENZING is obtained by adjusting the molding process of viscose fiber. However, due to the long production cycle and complex process of viscose fiber, it is very difficult to adjust the production process. Long-term and large-scale experiments are required, and a large number of Waste silk, resulting in greatly increased production and R&D costs

Method used

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  • A kind of high wet modulus viscose fiber and preparation method thereof
  • A kind of high wet modulus viscose fiber and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031] A high wet modulus viscose fiber, the dry breaking strength of the high wet modulus viscose fiber is 2.9cN / dtex, the wet breaking strength is 1.8cN / dtex, the dry elongation at break is 12.5%, and the wet modulus is 0.8cN / dtex dtex.

Embodiment 2

[0033] A kind of viscose fiber with high wet modulus, the dry breaking strength of described high wet modulus viscose fiber is 3.3cN / dtex, the wet breaking strength is 2.1cN / dtex, the dry elongation at break is 14%, and the wet modulus is 0.9cN / dtex dtex.

Embodiment 3

[0035] (1) Entering the as-spun fiber tow into a plasticizing bath for wet-heat drawing, the draw ratio of the wet-heat drawing is 10%; after passing through the plasticizing bath, sheet-like viscose tow is obtained.

[0036] (2) Dehydrating the sheet-like viscose tow into a desulfurization bath for desulfurization.

[0037] (3) Dehydrating the desulfurized sheet-like tow into a bleaching bath for bleaching.

[0038] (4) After the bleached sheet-like tow is dehydrated, go through 6 washing processes, each washing length is 1.5 meters, and the wet end is drawn while washing, and the draft ratio of the wet end drawing is 15%. ; The washing temperature is 80°C.

[0039] (5) Dehydrating the washed flake tow into an oiling bath for oiling.

[0040] (6) After dehydration, the sheet-like tow after oiling is passed through 36 drying hot rollers for cadre drafting, and the speed ratio is gradually increased by increasing the speed of the drying hot rollers step by step to control the...

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Abstract

The invention discloses a high wet modulus viscose fiber and a preparation method thereof. The dry breaking strength of the high wet modulus viscose fiber is 2.4 to 3.5 cN / dtex, the wet breaking strength is 1.3 to 2.1 cN / dtex, and the dry breaking strength is 1.3 to 2.1 cN / dtex. The elongation is 9-15%, and the wet modulus is 0.7-1.0cN / dtex. The as-spun fiber tow goes through the following processing steps in sequence: (1) enters the plasticizing bath for moist heat drawing; (2) enters the desulfurization bath for desulfurization after dehydration; (3) enters the bleaching bath for bleaching after dehydration; (4) After dehydration, go through multiple water washing processes, and carry out wet end drafting while washing; (5) enter the oiling bath for oiling after dehydration; (6) carry out hot roller drying after dehydration, and carry out dry drawing at the same time; The high wet modulus viscose fiber is obtained after hot roll drying. In the invention, the viscose fiber with high wet modulus and stable size in wet state is obtained only by adjusting the post-treatment process, and the process is highly controllable.

Description

technical field [0001] The invention relates to the technical field of viscose fiber, in particular to a viscose fiber with high wet modulus. Background technique [0002] Viscose fiber is a kind of textile raw material widely used in the textile industry. The fabric made of it is soft to the touch, moisture-absorbing and breathable, the fabric is drapeable, and has the advantages of easy dyeing and antistatic. Its products are widely used in clothing, household fabrics, toys, non-woven fabrics and other industries. And its hygroscopicity is most in line with the physiological requirements of human skin, and it has good air permeability and humidity control function. It is unanimously called "breathing fabric" by domestic and foreign media. [0003] However, due to the violent swelling of viscose fiber in wet state, its wet strength and wet modulus are generally low, and the spun fabric has the disadvantages of easy deformation and poor dimensional stability, which greatly ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F2/06D01D5/06D01D5/14D01D5/16D01D10/06
CPCD01D5/06D01D5/14D01D5/16D01D10/06D01F2/06
Inventor 叶荣明胡宏伟刘海洋瞿俊荣周州王法
Owner 赛得利(盐城)纤维有限公司
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