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Method for preparing cowhide fiber yarns from cowhide leftover materials

A technology of kraft fiber and leftover materials, applied in the chemical post-treatment of fibers, fiber treatment, yarn, etc., can solve the problems of collagen fiber breaking and affecting the quality of yarn products, and achieve the effect of low cost

Inactive Publication Date: 2011-10-12
沈中全 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent 200410051407.3 "an animal skin yarn and its production method" describes a yarn made of animal skin fibers and other textile fibers in a certain proportion, and the length of the animal fibers is only 10-45mm, and the fineness is 0.3 D-2.5D, use the high-speed rotating licker-in roller in the mechanical fiber opening device to loosen the skin fibers, which will easily break the collagen fibers and affect the quality of yarn products

Method used

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  • Method for preparing cowhide fiber yarns from cowhide leftover materials
  • Method for preparing cowhide fiber yarns from cowhide leftover materials

Examples

Experimental program
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Effect test

Embodiment 1

[0044] Screen, color-separate, and remove impurities from American cowhide two-layer leather scraps, and put 5KG of American cowhide second-layer leather scraps into a soaking solution for puffing and softening. The soaking solution is to add penetrating agent 8KG, NaOH 1.0 Kg (when 1.0KgNaOH is added, it is made into a NaOH aqueous solution with a concentration of 10g / l, and then added) and 5KG of bulking agent (among them, the penetrating agent is sulfosuccinate sodium salt, and the bulking agent is aromatic hydrocarbon and higher fatty alcohol poly The compound of oxyethylene ether and the compound of phenols and higher fatty alcohol polyoxyethylene ether), the temperature of soaking water is 52°C, and the soaking time is 8 hours. Extruding, wherein the water content of the extruded cowhide leftovers is 25%; repeated soaking and extrusion, wherein the second soaking and swelling time is 8 hours, and the water content of the extruded cowhide leftovers is 25%; The time for so...

Embodiment 2

[0046] Screening, color separation, and impurity removal of China Hebei cowhide second-layer leather scraps, 5KG of China Hebei cowhide second-layer leather scraps are put into soaking liquid for puffing and softening. NaOH 1.5Kg (when 1.5KgNaOH is added, it is made into a NaOH aqueous solution with a concentration of 10g / l, and then added) and 5KG of bulking agent (among them, the penetrating agent is oleoyl amino acid sodium salt, and the bulking agent is polyphenols and higher fatty alcohols) compound of oxyethylene ether), the soaking water temperature is 50°C, and the soaking time is 8 hours, and the second-layer cowhide leftovers after the first expansion and softening are extruded by a hydraulic press, wherein the content of the extruded cowhide leftovers The water content is 25%; soaking and extrusion are repeated, wherein the second soaking and swelling time is 8 hours, and the water content of the cowhide leftovers after extrusion is 25%; the third soaking and swellin...

Embodiment 3

[0048] The American cowhide three-layer cowhide leftovers are screened, color-separated, and impurities are removed, and the American cowhide three-layer cowhide leftovers of 5KG are put into a soaking solution to expand and soften. The soaking solution is to add penetrating agent 8KG, NaOH0. 25Kg (when 0.25KgNaOH is added, it is made into a NaOH aqueous solution with a concentration of 10g / l, and then added) and 5KG of bulking agent (among them, the penetrating agent is straight-chain fatty alcohol polyoxyethylene ether, and the bulking agent is aromatic hydrocarbon and higher fatty alcohol. compound of polyoxyethylene ether), the soaking water temperature is 52°C, and the soaking time is 8 hours, and the first puffed and softened second-layer cowhide leftovers are extruded by a hydraulic press, wherein the extruded cowhide leftovers The water content is 25%; repeated soaking and extrusion, wherein, the second soaking and swelling time is 8 hours, and the water content of the ...

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Abstract

The invention belongs to the technical field of the utilization of cowhide leftover materials, and relates to a method for cowhide fiber yarns from cowhide leftover materials, which comprises the following steps of: performing screening, color separation, impurity removal, puffing, softening, extrusion, repeated soaking and extrusion, hammering and flocking, after treatment, loosing and drying on the cowhide leftover materials sequentially to obtain cowhide fibers with the length of between 15 and 50 millimeters and the fineness of between 0.5 and 2.2 D; and performing carding, drawing and spinning on the cowhide fibers sequentially to obtain the cowhide fiber yarns. In the method, the cowhide leftover materials discarded in the production process of leather are used as raw materials, so the cost is low, and the cowhide leftover materials are turned into wealth; and the obtained cowhide fibers for preparing the cowhide fiber yarns are high in finished product rate and uniform in fineness.

Description

technical field [0001] The invention belongs to the technical field of utilization of leftover cowhide, and relates to a method for preparing kraft fiber yarn from leftover cowhide. Background technique [0002] Cowhide leftovers are inevitable wastes in the production process of cowhide products, and cowhide is mainly composed of bundle-type and micro-bundle-type collagen fibers that are interwoven and intertwined. Chinese patent 200410051407.3 "an animal skin yarn and its production method" describes a yarn made of animal skin fibers and other textile fibers in a certain proportion, and the length of the animal fibers is only 10-45mm, and the fineness is 0.3 D-2.5D, use the high-speed rotating licker-in roller in the mechanical fiber opening device to loosen the skin fibers, which will easily break the collagen fibers and affect the quality of the yarn products. Contents of the invention [0003] The purpose of the present invention is to provide a method for preparing ...

Claims

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Application Information

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IPC IPC(8): D02G3/04D01B9/00D01C3/00
Inventor 沈中全张伟江
Owner 沈中全
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