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Manufacturing method of imitated cow top layer leather oily leather

A manufacturing method, the technology of the cow head, applied in the direction of non-woven fabrics, fabric elongation, textiles and papermaking, etc., can solve the problem that the glossiness and softness of the hand cannot meet the needs of consumers, and achieve fine patterns, high brightness, and drape strong effect

Active Publication Date: 2015-04-22
WUXI DOUBLE ELEPHANT MICRO FIBER MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the glossiness, plumpness and fineness of the pattern of the ultrafine fiber polyurethane synthetic leather products produced in the prior art cannot meet the needs of consumers, and provide a kind of imitation cow head with a simple preparation method. The method for manufacturing the oily skin leather, the prepared imitation cow head oily skin leather has high brightness, delicate patterns, strong waxy feeling and strong drape feeling

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A kind of manufacture method of imitation cowhide oil hide leather, comprises the steps:

[0021] (1) Preparation of non-woven fabric: Mix polyamide 6 and low-density polyethylene according to the mass ratio of 40:60, stir for 15 minutes with a slow mixer at a speed of 30 rpm, and wait until the above two materials are evenly stirred , melted and stirred into the sea-island spinneret assembly through a single-screw spinning machine, the screw pressure is 5kg, the screw speed is 30Hz, the screw temperature is 90°C, the pipeline temperature is 280°C, and is extruded through the distribution plate and the spinneret; The formed tow is drawn by three drafting rollers, the drafting ratio of the three rollers is 1:2.2:3.5, the main pressure of the spinning oil oil bath, and the crimping machine is 1kg, and the main pressure is 0.5kg. , the number of crimps is 15 pieces / 25mm, drying, the drying temperature is 50°C, the drying time is 5 minutes, and the short fibers with a lengt...

Embodiment 2

[0029] A kind of manufacture method of imitation cowhide oil hide leather, comprises the steps:

[0030] (1) Preparation of non-woven fabric: Mix polyamide 6 and low-density polyethylene according to the mass ratio of 50:50 and stir for 18 minutes with a slow mixer at a speed of 40 rpm. After the above two materials are evenly stirred, Melted and stirred by a single-screw spinning machine into the sea-island spinneret assembly, the screw pressure is 8kg, the screw speed is 40Hz, the screw temperature is 200°C, the pipeline temperature is 290°C, and is extruded through the distribution plate and the spinneret; The formed tow is then drawn by three drafting rollers, the drafting ratio of the three rollers is 1:2.5:4, oiling in the spinning oil bath, and the main pressure of the crimping machine is 2kg, and the crimping is 1kg. The number is 20 pieces / 25mm, drying, the drying temperature is 60°C, the drying time is 8 minutes, and the short fibers with a length of 50mm and a finen...

Embodiment 3

[0038] A kind of manufacture method of imitation cowhide oil hide leather, comprises the steps:

[0039] (1) Preparation of non-woven fabric: Mix polyamide 6 and low-density polyethylene according to the mass ratio of 60:40 and stir for 20 minutes with a slow mixer at a speed of 50 rpm. After the above two materials are evenly stirred, Melted and stirred by a single-screw spinning machine into the sea-island spinneret assembly, the screw pressure is 10kg, the screw speed is 50Hz, the screw temperature is 300°C, the pipeline temperature is 295°C, and is extruded through the distribution plate and the spinneret; The formed tow is then drawn by three drafting rollers, the drafting ratio of the three rollers is 1:2.8:4, the spinning oil oil bath is oiled, and the main pressure of the crimping machine is 2kg, and it is pressed to 1.3kg. The number of crimps is 25 pieces / 25mm, drying, the drying temperature is 75°C, the drying time is 10 minutes, and the short fibers with a length o...

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Abstract

The invention relates to a manufacturing method of imitated cow top layer leather oily leather. The method includes the process steps: (1) manufacturing a non-woven fabric with the density of 0.25-0.27g / m<2>; (2) impregnating the non-woven fabric in mixed impregnation solution of polyether polyurethane and polymeric carbon polyurethane; (3) reducing methylbenzene; (4) arranging a substrate; (5) performing dry process overlaying; (6) overlaying a release paper coating film obtained in the fifth step and an imitated cow top layer leather superfine fiber polyurethane synthetic leather substrate obtained in the fourth step in an aligned manner to obtain imitated cow top layer leather; (7) performing embossing and third-edition machine treatment for the made imitated cow top layer leather to obtain the imitated cow top layer leather oily leather. The manufacturing method is simple, the made imitated cow top layer leather oily leather is high in brightness, fine and smooth in stripe and strong in oil wax feeling and suspension feeling, and the requirements of different products can be met.

Description

technical field [0001] The invention relates to a method for producing superfine fiber polyurethane synthetic leather, in particular to a method for producing imitation cowhide oil leather, and belongs to the technical field of leather production. Background technique [0002] Microfiber polyurethane synthetic leather is mainly used in footwear, bags, sofas, car interiors, balls, gloves, etc. At present, the market share of domestic microfiber polyurethane synthetic leather is increasing, and people's awareness is also increasing. Higher and higher, as a fashion-leading bag leather, it has become a fashion vane, and general microfiber polyurethane synthetic leather products can no longer satisfy consumers' aesthetics, especially the glossiness of the leather surface, the fullness and fineness of the pattern, and the hand feel. It is difficult to meet the requirements of consumers in different regions and countries in terms of softness and comfort. Contents of the inventio...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/4382D04H1/46D06N3/12D06M15/643D06M13/02D06C3/00D06C19/00D06C23/04D06C27/00
CPCD04H1/4382D04H1/46D06M15/568D06M15/6436D06M2101/20D06M2101/34D06N3/0004D06N3/0011D06N3/0034D06N3/0038D06N3/005D06N3/0077D06N3/0097D06N3/145D06N2209/0838D06N2209/1642D06N2211/28
Inventor 尉雷金梅刘连伟
Owner WUXI DOUBLE ELEPHANT MICRO FIBER MATERIAL
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