A method of laser treating ultra-high molecular weight polyethylene to improve the rubbing fastness of paint dyeing
An ultra-high molecular weight, paint dyeing technology, applied in the field of fabrics in the textile industry, can solve the problems of inability to meet large production requirements, lack of dyeing groups, substandard color fastness, etc., to improve dry and wet rubbing fastness, reduce costs, The effect of improving adhesion and hydrophilic properties
Active Publication Date: 2020-01-17
IANGSU COLLEGE OF ENG & TECH
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Problems solved by technology
The performance characteristics of UHMWPE fiber, such as high relative molecular mass, high orientation, highly entangled molecular chains and high crystallinity, endow the material with excellent comprehensive performance, with low density, high modulus, UV resistance, wear resistance, impact resistance, High strength and other properties, it has the best cost performance among the three existing fiber materials. Ultra-high molecular weight polyethylene (UHMWPE) fibers, UHMWPE fibers have extremely high crystallinity, lack of dyeing groups, and are difficult to dye. At present, the main research institutions , adopts methods such as stock solution coloring method, conventional dyeing method, development of specific dye structure, special dyeing process, etc., but the color fastness is not up to standard, and the chromatogram is incomplete, which cannot meet the requirements of mass production
Method used
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[0025] The process flow of the present invention is as follows: gray cloth degreasing and water washing, dehydration→drying→laser pretreatment→fiber modification in the fabric→grafting→paint dyeing→bonding→water washing, dehydration→drying→rubbing fastness testing→finished product . The specific operation is as follows:
[0026] 1. Specifications of gray fabric
[0027] Use ultra-high molecular weight polyethylene woven fabrics for home textiles, with a grammage (G / m2) of 250±5%; a width (cm) of 235-240; a thickness (mm) of 0.55-0.6±0.02.
[0028] 2. Fabric pretreatment
[0029] Process flow: return water → add treatment solution at 70--75°C → scorch at 95-102°C for 40-50min → fabric out → wash at 70-80°C → normal temperature water wash → cloth out;
[0030] Process prescription: scouring agent 15-18g / L;
[0031] Sodium carbonate 15-18g / L;
[0032] Hydrosulfite 16-20g / L;
[0033] Penetrant JFC 5-8g / L;
[0034] Liquor ratio 1:25-35.
[0035] 3. Drying process
[0036] ...
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Abstract
The invention discloses a method for improving coating dyeing crockfastness by using laser to treat ultra-high molecular weight polyethylene. The method comprises the following steps: preparation of gray cloth; pretreatment of a fabric; drying technology; laser pretreatment; modification of fibers in the fabric; grafting; coating dyeing; bonding; water washing and dehydrating; drying; crockfastness detection; obtaining of a finished product. The method disclosed by the invention has the advantages that ultra-high molecular weight polyethylene fibers are subjected to laser treatment, specific surface area of the fibers is changed, and the fibers to promoted to form grooves; most coating is attached to the walls of the grooves and the surfaces of the fibers, so that the dry-wet crockfastnessof the fabric is improved; meanwhile, by fiber modification, the ultra-high molecular weight polyethylene fibers are in positive charge and adsorb anionic pigment; certain depth and better color-fixing effect of the fabric surface are realized by self-crosslinking of an adhesive and crosslinking of the fibers, and further the color fastness of the fabric is improved.
Description
technical field [0001] The invention belongs to the field of fabrics in the textile industry, and in particular relates to a method for laser treating ultra-high molecular weight polyethylene to improve the rubbing fastness of paint dyeing. Background technique [0002] Ultra-high molecular weight polyethylene (UHMWPE) fiber is a high-performance fiber that was industrialized in the 1980s, also known as high-strength and high-modulus polyethylene (PE) fiber. The performance characteristics of UHMWPE fiber, such as high relative molecular mass, high orientation, highly entangled molecular chains and high crystallinity, endow the material with excellent comprehensive performance, with low density, high modulus, UV resistance, wear resistance, impact resistance, High strength and other properties, it has the best cost performance among the three existing fiber materials. Ultra-high molecular weight polyethylene (UHMWPE) fibers, UHMWPE fibers have extremely high crystallinity, l...
Claims
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IPC IPC(8): D06P5/20D06P5/00D06P5/02D06P1/673D06P1/44D06P3/79
CPCD06P1/44D06P1/6735D06P1/67375D06P3/79D06P5/002D06P5/02D06P5/2011
Inventor黄雪红
OwnerIANGSU COLLEGE OF ENG & TECH