Washing-resistant alginate fiber and preparation method thereof

A seaweed fiber and washing-resistant technology, which is applied in fiber processing, textiles and papermaking, can solve the problems that affect the spinning effect and the spinning process is difficult to control, and achieve the effect of enhancing mechanical properties and washing resistance

Pending Publication Date: 2022-04-29
ZHENGZHOU ZHONGYUAN SPANDEX ENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent CN106435833 uses polyethylene glycol diglycidyl ether as a cross-linking agent, and the cross-linking agent is added to the spinning solution for cross-linking reaction, and then chemically modified seaweed fibers are obtained, but the cross-linking reaction occurs before spinning , which will make the spinning process difficult to control and affect the spinning effect
[0011] There is no report on the use of tannic acid as a cross-linking agent for the preparation of washing-resistant seaweed fibers

Method used

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  • Washing-resistant alginate fiber and preparation method thereof
  • Washing-resistant alginate fiber and preparation method thereof
  • Washing-resistant alginate fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] (1) Preparation of finishing solution:

[0048] At room temperature, 1g of tannic acid was dissolved in 10wt% CaCl 2 In aqueous solution, heated to 45°C, with NaHCO concentration of 0.1035mol / L 3 The solution is used as a regulator to adjust the pH value of the finishing solution to 10;

[0049] (2) Preparation of washing-resistant seaweed fiber:

[0050] Immerse 10g of calcium alginate fibers in the finishing solution prepared in step (1) for 5 minutes. After taking it out, dry the finishing solution in the fiber, wash it repeatedly with water, and then dry it in an oven at 40°C. A washing-resistant seaweed fiber containing a five-membered ring chelate compound with a cross-linked network and a hydrogen bond cross-linked network structure is prepared. Its mechanical properties, swelling degree (soaked in NaCl solution) and alkali resistance (soaked in NaOH solution) data are shown in Table 1.

[0051] Table 1

[0052]

[0053] As can be seen from Table 1, compa...

Embodiment 2

[0055] (1) Preparation of finishing solution:

[0056] At room temperature, 1g of tannic acid was dissolved in 15wt% CaCl 2 In aqueous solution, heated to 25°C, with NaHCO concentration of 0.1697mol / L 3 The solution is used as a regulator to adjust the pH value of the finishing solution to 9;

[0057] (2) Preparation of washing-resistant seaweed fiber:

[0058] Immerse 5g of calcium alginate fibers in the finishing solution prepared in step (1) for 50 minutes. After taking it out, squeeze the finishing solution in the fibers to dry, wash them repeatedly with water, and then dry them in an oven at 45°C. A washing-resistant seaweed fiber containing a five-membered ring chelate compound with a cross-linked network and a hydrogen bond cross-linked network structure is prepared. Its mechanical properties, swelling degree (soaked in NaCl solution) and alkali resistance (soaked in NaOH solution) data are shown in Table 2.

[0059] Table 2

[0060]

[0061] As can be seen from...

Embodiment 3

[0063] (1) Preparation of finishing solution:

[0064] At room temperature, 3g of tannic acid was dissolved in 8wt% CaCl 2 In aqueous solution, heated to 55°C, with a concentration of 0.2047mol / L Na 2 CO 3 The solution is used as a regulator to adjust the pH value of the finishing solution to 9;

[0065] (2) Preparation of washing-resistant seaweed fiber:

[0066] Immerse 10g of calcium alginate fiber in the finishing solution prepared in step (1) for 200 minutes, after taking it out, squeeze the finishing solution in the fiber to dry, wash it repeatedly with water, and then dry it in an oven at 50°C. A washing-resistant seaweed fiber containing a five-membered ring chelate and a hydrogen bond crosslinked network is prepared. Its mechanical properties, swelling degree (soaked in NaCl solution) and alkali resistance (soaked in NaOH solution) data are shown in Table 3.

[0067] table 3

[0068]

[0069] It can be seen from Table 3 that the washing-resistant seaweed fibe...

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Abstract

The invention discloses a washing-resistant alginate fiber and a preparation method thereof, belongs to the field of textile chemical industry, and mainly solves the technical problem that the alginate fiber is poor in washing resistance. According to the preparation method, the finishing liquid containing the natural cross-linking agent tannic acid is prepared, the alginate fibers are soaked in the finishing liquid under the proper content, proportion and reaction conditions, the alginate fibers are subjected to cross-linking treatment, the washing-resistant alginate fibers are prepared, and the actual durability of the alginate fibers is improved.

Description

technical field [0001] The invention belongs to the technical field of textile chemical industry, and in particular relates to a washing-resistant seaweed fiber and a preparation method thereof. Background technique [0002] With the continuous improvement of people's awareness of environmental protection, "green clothing" will dominate the development of the world's textile and clothing field. Seaweed fiber is a fully biodegradable fiber prepared from sodium alginate, or sodium alginate compounded with other cellulose, by wet or dry spray wet spinning. Sodium alginate is a pure natural polysaccharide, which can be extracted from brown algae and other marine organisms. It is rich in resources and low in cost. At the same time, seaweed fiber has excellent water absorption, biocompatibility, and skin-friendly properties. It has broad application space in the field of high-end clothing, underwear fabrics and medical fields. [0003] However, current research at home and abroa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M13/238
CPCD06M13/238
Inventor 刘春晖钱小磊张智朝化丹丹孙湘东白有灿
Owner ZHENGZHOU ZHONGYUAN SPANDEX ENG TECH
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