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Calendering roller for manufacturing skin-touch leather as well as preparation method and application of calendering roller

A calendering roller and leather technology, which is applied in the field of leather manufacturing, can solve the problems of reduced leather quality, poor leather touch, and affecting the surface structure of calendering rollers, so as to achieve the effect of optimizing skin touch

Active Publication Date: 2022-06-28
GUANGDONG INST OF NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For roll blanks with high hardness, when the powder with micro-nano dual-scale structure is sprayed on the surface of the roll blank, it will be deformed to varying degrees, which will affect the surface structure of the calender roll, resulting in poor tactility of the leather and lower leather quality

Method used

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  • Calendering roller for manufacturing skin-touch leather as well as preparation method and application of calendering roller
  • Calendering roller for manufacturing skin-touch leather as well as preparation method and application of calendering roller
  • Calendering roller for manufacturing skin-touch leather as well as preparation method and application of calendering roller

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0023] In a first aspect, the present invention provides a method for preparing a calendering roll for making skin-feel leather, comprising using a column flow nozzle to impinge powder with a micro-nano dual-scale structure onto the preheated calendering roll blank surface, so that the The impact surface of the powder is melted on the surface of the calender roll blank, and then welded to form a micro-nano structure coating; the hardness of the calender roll blank is 200-700Hv.

[0024] The powder with the micro-nano dual-scale structure is a three-dimensional powder with multiple tree-shaped branches on the surface. Due to its special morphology, when it is attached to the surface of the substrate, it can make the surface of the substrate form uneven microscopic. Nanostructure coating, which greatly improves the texture formation and touch texture of leather.

[0025] The powder with the micro-nano dual-scale structure is ejected through the column flow nozzle. Due to the low...

Embodiment 1

[0051] Please refer to figure 1 , this embodiment provides a preparation system 100 for a calendering roll for skin-feel leather manufacturing, including a powder emitting unit and a roll blank preheating unit.

[0052] The powder emission unit is provided with a column flow nozzle 111, which is used to spray powder 300 with a micro-nano dual-scale structure to the surface of the roll blank 200. The roll blank preheating unit is a laser 121. Hot roll blank 200.

[0053] In this embodiment, the powder emission unit further includes a powder feeding gas source 112 , a powder feeding system 113 , a powder heating system 114 , an accelerating gas source 115 and a gas heating system 116 .

[0054] The powder heating system 114 and the gas heating system 116 are both connected to the column flow nozzle 111 for inputting the heated powder 300 with a micro-nano dual-scale structure and a carrier gas into the column flow nozzle 111; the powder feeding gas source 112 and the powder fee...

Embodiment 2

[0060] The present embodiment provides a calendering roller for the manufacture of skin-feeling leather, and its preparation method is applicable to the system of Example 1, and the specific preparation method is as follows:

[0061] S1, calender roll blank pretreatment

[0062] Grind and polish the 20# steel roll blank with sandpaper and diamond polishing belt to make the surface roughness of the carbon steel roll blank reach 1.5μm, and then clean the surface of the roll blank with alcohol to remove the residual debris on the surface of the roll blank during the pretreatment process. shavings to ensure that the surface of the treated roll blank is free of impurities.

[0063] S2, the formation of micro-nano structure coating

[0064] Place the roll blank obtained in step S1 on the turntable, reserve the area to be coated, and protect other areas on the surface of the roll blank with tape and tooling, fix it on the turntable and clamp it without loosening. When the turntable ...

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Abstract

The invention discloses a calendering roller for skin-touch leather manufacturing and a preparation method and application thereof, and relates to the technical field of leather manufacturing. The surface of a roller blank of a calendering roller is preheated, so that powder which passes through a column flow nozzle and is of a micro-nano dual-scale structure is accelerated and heated, when the powder impacts the surface of the heated roller blank of the calendering roller, kinetic energy of the powder is converted into internal energy, and then the contact face of the powder of the micro-nano dual-scale structure and the roller blank is melted; and welding on the surface of the calendaring roller blank. When a large amount of powder is welded to the surface of the roller blank, a micro-nano structure coating is formed on the surface of the roller blank. A structure with a micro-nano two-dimensional scale is formed on the surface of the leather prepared by using the coating, and the skin touch feeling of the leather is optimized.

Description

technical field [0001] The present invention relates to the technical field of leather manufacturing, in particular, to a calendering roller used for manufacturing skin-feel leather and a preparation method and application thereof. Background technique [0002] In the field of leather preparation, the surface structure of the calender roll has a significant effect on the tactile feel of the leather. At present, it has been found that the calendering roller with micro-nano structure on the surface is one of the key components in the preparation of skin-feeling artificial leather, the direct source of the skin touch of artificial leather, and the core technology for the preparation of skin-feeling artificial leather. [0003] For roller blanks with high hardness, powder with micro-nano dual-scale structure will be deformed to varying degrees when sprayed on the surface of the roller blanks, which will affect the surface structure of the calendering rollers, resulting in poor l...

Claims

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Application Information

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IPC IPC(8): C23C24/04D06N3/00
CPCC23C24/04D06N3/0077Y02P10/25
Inventor 谢迎春黄继波俞泽新王昊
Owner GUANGDONG INST OF NEW MATERIALS
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