A kind of preparation method of oxidized viscose fiber cross-linked silkworm chrysalis peptide

A viscose fiber, oxidized viscose technology, applied in the direction of biochemical fiber treatment, plant fiber, fiber treatment, etc., can solve the β-1,4-glycosidic bond breakage, affecting product quality and application, high risk of combustion and explosion, etc. problem, to achieve the effect of high cross-linking rate, low production cost and easy operation

Active Publication Date: 2021-01-29
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this method are: ① the use of NaNO in the primary oxidation 3 with H 2 SO 4 Formation of HNO under heating conditions 3 , thereby oxidizing the C of the cellulose glucose residue 1 Hydroxyl is carboxyl, but HNO 3 Thermal decomposition produces NO 2 , seriously pollute the environment, and easily lead to the breakage of β-1,4-glucosidic bonds, resulting in cellulose powder and loss of spinnability
②Secondary oxidation using KClO 4 , KClO 4 It is a flammable and explosive reagent. When it contacts or mixes with organic substances, reducing agents, and flammable substances such as sulfur and phosphorus, it is extremely dangerous to cause combustion and explosion. Similarly, this reagent also causes cellulose to be powdered and loses spinnability.
The shortcoming of this method is to combine fiber and albumen as a whole by physical method, prepare pupal protein viscose filament
Because the protein and cellulose molecules are only "closed" by mixing, there is no chemical bonding between the two molecules, so that the protein is easy to fall off in the process of refining, dyeing and washing, and the fabric is dyed unevenly, which seriously affects the quality and quality of the product. application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A kind of preparation method of oxidized viscose fiber cross-linked silkworm chrysalis peptide, and its concrete technological steps are as follows:

[0026] (1) Preparation of oxidized viscose fiber

[0027] An appropriate amount of viscose fiber was dispersed in a 50-fold volume of an aqueous solution with a pH of 5.0, the temperature was raised to 30° C., and 2% of the mass of the substrate was added with glucose oxidase to react for 2 hours. After the reaction, washing with pure water for 5 times, and drying at 60°C, the oxidized viscose fiber was prepared, which was used for preparing the oxidized viscose fiber cross-linked silkworm chrysalis peptide.

[0028] (2) Preparation of silkworm pupa peptide solution

[0029]An appropriate amount of isolated silkworm pupa protein was dispersed in pure water, and the pH was adjusted to 8.5 with dilute sodium hydroxide solution under stirring, and treated for 15 minutes to prepare a silkworm pupa protein solution with a pro...

Embodiment 2

[0033] A kind of preparation method of oxidized viscose fiber cross-linked silkworm chrysalis peptide, and its concrete technological steps are as follows:

[0034] (1) Preparation of oxidized viscose fiber

[0035] Appropriate amount of viscose fibers were dispersed in 75 times the volume of an aqueous solution with a pH of 6.0, the temperature was raised to 35°C, and 6% of the mass of the substrate was added with glucose oxidase to react for 3 hours. After the reaction, washing with pure water for 5 times, and drying at 60°C, the oxidized viscose fiber was prepared, which was used for preparing the oxidized viscose fiber cross-linked silkworm chrysalis peptide.

[0036] (2) Preparation of silkworm pupa peptide solution

[0037] An appropriate amount of silkworm pupa protein isolate was dispersed in pure water, and the pH was adjusted to 9.5 with dilute sodium hydroxide solution under stirring, and treated for 25 minutes to prepare a silkworm pupa protein solution with a pro...

Embodiment 3

[0041] A kind of preparation method of oxidized viscose fiber cross-linked silkworm chrysalis peptide, and its concrete technological steps are as follows:

[0042] (1) Preparation of oxidized viscose fiber

[0043] An appropriate amount of viscose fiber was dispersed in 100 times the volume of an aqueous solution with a pH of 7.0, the temperature was raised to 40° C., and 10% of the mass of the substrate was added with glucose oxidase to react for 4 hours. After the reaction, washing with pure water for 5 times, and drying at 60°C, the oxidized viscose fiber was prepared, which was used for preparing the oxidized viscose fiber cross-linked silkworm chrysalis peptide.

[0044] (2) Preparation of silkworm pupa peptide solution

[0045] Appropriate amount of isolated silkworm pupa protein was dispersed in pure water, and the pH was adjusted to 10.5 with dilute sodium hydroxide solution under stirring, and treated for 30 minutes to prepare a silkworm pupa protein solution with a...

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PUM

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Abstract

The invention discloses a preparation method of oxidized viscose fiber cross-linked silkworm chrysalis peptide, which belongs to the technical field of textile industrial materials. The present invention uses viscose fiber and silkworm chrysalis protein isolate as raw materials, prepares oxidized viscose fiber, prepares silkworm chrysalis peptide solution, and prepares the steps of preparing oxidized viscose fiber cross-linked silkworm chrysalis peptide, and then prepares the oxidized protein with a crosslinking rate of 4.5-6.9%. Viscose fiber cross-linked silkworm chrysalis peptide. The invention connects the oxidized viscose fiber and the silkworm chrysalis peptide through N, N'-dicyclohexylcarbodiimide (DCC) dehydration condensation to form an amide bond, the cross-linking rate is high, the cross-linking stability is good, and the surface of the cross-linking product is covered Covered with protein, it shows a silky, wooly texture and has good skin-friendly properties. The preparation process has mild reaction conditions, easy operation, easy-to-obtain raw materials, low production cost, and realizes comprehensive utilization of raw materials and by-products. It belongs to green synthesis technology. The prepared oxidized viscose fiber cross-linked silkworm chrysalis peptide can be widely used in textiles. , clothing, food and other fields.

Description

[0001] 1. Technical field [0002] The invention belongs to the technical field of textile industrial materials, and in particular relates to a preparation method of oxidized viscose fiber cross-linked silkworm chrysalis peptide. [0003] 2. Background technology [0004] With the development of science and technology and the improvement of living standards, people have put forward more and higher requirements for various properties of textile products, requiring textile products to have the characteristics of lightness, comfort, elasticity, environmental protection, and health care. Therefore, the development of comfortable and healthy new fiber materials has broad market prospects. Viscose fiber is a natural regenerated cellulose fiber. Its main component, cellulose, is a high-molecular polymer composed of D-glucose linked by β-1,4-glycosidic bonds. It has the characteristics of good air permeability and bright dyeing. However, viscose fiber also has defects such as poor ela...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/15D06M16/00D01F8/02A23K20/147D06M101/06
CPCA23K20/147D01F8/02D06M15/15D06M16/003D06M2101/06D06M2200/50
Inventor 江文尹思力倪科余红梅杨洋凌梦晨袁德宽周小华
Owner CHONGQING UNIV
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