Collagen fiber capable of being directly used for spinning and dermal fiber leather prepared by the same

A collagen fiber, direct technology, applied in the direction of fiber treatment, decomposition of fibrous substances, decomposition and restoration of textiles, etc., can solve problems such as insufficient binding force, waste of resources, damage to fibrils, etc., to increase surface roughness, shorten Response time, effect of improving wear resistance

Active Publication Date: 2015-09-09
浙江圣禾纤维科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Combined with physical treatment after chemical treatment, such as acid swelling, alkaline swelling, enzyme treatment, etc., it is easy to soften the collagen fibers in the chemical environment or the chemical environment is too strong to destroy the molecular structure of collagen, exposing possible The combined end groups may be broken into small molecular groups, resulting in fiber fragments, and the force generated by the subsequent physical treatment is relatively large, resulting in damage to the fibr...

Method used

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  • Collagen fiber capable of being directly used for spinning and dermal fiber leather prepared by the same
  • Collagen fiber capable of being directly used for spinning and dermal fiber leather prepared by the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1 adopts the following steps to prepare a kind of collagen fiber that can be directly used for spinning:

[0042] (1) Cutting: use wet blue leather as raw material, and cut it into the size required by production or equipment with a leather shearing machine;

[0043] (2) Ultrasonic pretreatment: Prepare the pretreatment solution, adjust the pH to 7~7.5, raise the temperature to 40~50°C, completely immerse the cut wet blue leather in the pretreatment solution for 12-24 hours, and then raise the temperature of the pretreatment solution to 50-60°C, adjust the pH to 7.5 to 8, then soak for 1-2 hours, and perform ultrasonic low-frequency short-term oscillation at the current temperature. The ultrasonic conditions used are: frequency 20-50kHz, power 200~600W, ultrasonic time 10-20 minutes; the pretreatment solution is prepared by mixing a sodium hydroxide solution with a mass concentration of 2-10% and a n-butanol solution with a mass concentration of 45-75% accord...

Embodiment 2

[0048] Embodiment 2 adopts the following steps to prepare a kind of collagen fiber that can be directly used for spinning:

[0049] (1) Cutting: use wet blue leather as raw material, and cut it into the size required by production or equipment with a leather shearing machine;

[0050] (2) Ultrasonic pretreatment: Prepare a polar solvent pretreatment solution rich in hydroxyl groups, adjust the pH to 7, raise the temperature to 45°C, completely immerse the cut wet blue leather in the pretreatment solution for 24 hours, and then pretreat The temperature of the solution is raised to 50°C, the pH is adjusted to 7.5 to 8, and then soaked for 2 hours, and ultrasonic low-frequency short-term oscillation is performed at the current temperature. The ultrasonic conditions used are: frequency 20kHz, power 200W, ultrasonic time 20 minutes; pretreatment solution It is prepared by mixing sodium hydroxide solution with a mass concentration of 2% and a polyethylene glycol solution with a mass...

Embodiment 3

[0055] Embodiment 3 adopts the following steps to prepare a kind of collagen fiber that can be directly used for spinning:

[0056] (1) Cutting: use wet blue leather as raw material, cut it into the size required by production or equipment with a leather shearing machine, immerse the wet blue leather raw material in a water pool for 2 to 5 minutes, and dry until the moisture content is 60 to 80%;

[0057] (2) Ultrasonic pretreatment: Prepare the pretreatment solution, adjust the pH to 7, raise the temperature to 50°C, completely immerse the wet blue leather in the pretreatment solution for 12 hours, then raise the temperature of the pretreatment solution to 55°C, and adjust the pH to 7.5 , then soak for 1.5 hours, and carry out ultrasonic low-frequency short-term oscillation at the current temperature. The ultrasonic conditions adopted are: frequency 40kHz, power 600W, ultrasonic time 10 minutes; the pretreatment solution is composed of 10% sodium hydroxide solution and A mixe...

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Abstract

The invention discloses a collagen fiber capable of being directly used for spinning and dermal fiber leather prepared by the same. The collagen fiber is obtained by utilizing the strong effect of a polar solvent rich in hydroxyl groups and the combination of an ultrasonic treatment mode to achieve dissociation of intermolecular high-crystallized hydrogen bonds on the conditions of great mildness, obtaining raw material loosed in structure, performing drum treatment softening, liquid fiber separation and fiber drying, and then performing treatment on the dried collagen fiber in a single fiber state in combination with electrical impulse of an appropriate strength on the conditions of nitrogen protection. The preparation process is clean and free of pollution, and the manufactured collagen fiber can be directly spun through an existing spinning process without needing graft modification or compounding.

Description

technical field [0001] The invention relates to a collagen fiber for weaving that can be directly spun and a real leather fiber leather prepared therefrom, in particular to a collagen fiber that can be directly spun and a real leather fiber leather prepared therefrom. Background technique [0002] With the development of the tanning industry, the discharge of solid waste in the leather processing process has also increased, and the resulting environmental pollution has been increasingly addressed under the guidance of sustainable development and clean production. attention. In the solid waste of tanning, except for a small amount of animal hair and meat, its main components are leftovers and leftovers during the trimming and cutting of wet blue leather in the leather processing process. This kind of wet blue leather scraps are interwoven with dermis fibers, that is, collagen fibers, which account for 95% to 98% of the total fiber mass of the entire dermis. [0003] Collage...

Claims

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Application Information

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IPC IPC(8): D01G11/00D06N3/00D06M10/02
CPCY02W30/66
Inventor 徐琦
Owner 浙江圣禾纤维科技有限公司
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