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Dyeing method for polypropylene fibre or fabric

A polypropylene fiber and dyeing method technology, applied in the textile field, can solve the problems of inability to perform fine denier spinning, low color fixation rate, and poor deep dyeability, etc.

Inactive Publication Date: 2004-09-22
北京德士风服装领带有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods often have performance defects of varying degrees, such as low color fixation rate, poor deep dyeability, narrow color spectrum, inability to realize printing process, poor fiber strength, inability to perform fine denier spinning, harmful to human body, high cost and unable to realize industrialization Wait
[0004] Generally, unmodified polypropylene has a tight molecular crystal structure, high crystallinity, no polar or ionic groups in the fiber, lack of dyeable seats, and the only molecule that may exist between the fiber and the dye. The inter-force is a weaker Fann force, so far no suitable dye has been found

Method used

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  • Dyeing method for polypropylene fibre or fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: The polypropylene fabric is put into the low-temperature plasma treatment equipment reaction chamber to carry out low-temperature plasma treatment, the treatment conditions are: power 60W, time 120s, vacuum degree 0.5torr, treatment atmosphere selects air, then the fabric after treatment Soak in an acrylic acid solution with a concentration of 20wt% for 3 hours. Dyeing with disperse dyes, the initial dyeing temperature is 30°C, and the temperature is gradually raised at a rate of 2°C / min until the dye solution boils, and the dyeing is continued for 40-50 minutes, then taken out and washed with water. The dyeing rate reaches 80-90%, and the color fastness reaches 4-5 grades.

Embodiment 2

[0018] Embodiment 2: The polypropylene fabric is put into the low-temperature plasma treatment equipment reaction chamber to carry out low-temperature plasma treatment, the treatment conditions are: power 100W, time 90s, vacuum degree 0.7torr, treatment atmosphere selects air, then the fabric after treatment Soak in an acrylic acid solution with a concentration of 15wt% for 2 hours. Dyeing with disperse dyes, the initial dyeing temperature is 30°C, and the temperature is gradually raised at a rate of 2°C / min until the dye solution boils, and the dyeing is continued for 40-50 minutes, then taken out and washed with water. The dyeing rate reaches 80-90%, and the color fastness reaches 4-5 grades.

Embodiment 3

[0019] Embodiment 3: the polypropylene fabric is put into the low-temperature plasma treatment equipment reaction chamber to carry out low-temperature plasma treatment, the treatment conditions are: power 100W, time 100s, vacuum degree 0.3torr, treatment atmosphere selects argon gas, then the processed The fabric was soaked in 15wt% acrylic acid solution for 4h. Dyeing with disperse dyes, the initial dyeing temperature is 35°C, and the temperature is gradually raised at a rate of 2°C / min until the dye solution boils, and the dyeing is continued for 40-50 minutes, then taken out and washed with water. The dyeing rate reaches 80-90%, and the color fastness reaches 4-5 grades.

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Abstract

A technology for dyeing the polypropylene fibre or its fabric features that the surface of said polypropylene fibre or its fabric is modified by plasma as low temp while the monomer or solution of acrylic acid is introduced for surface graft, and then is dyed by 'ordinary-temp boiling dyeing' method.

Description

technical field [0001] The invention belongs to the field of textiles, in particular to a dyeing method for modifying polypropylene fibers or fabrics by using a low-temperature plasma graft polymerization method. Background technique [0002] As we all know, polypropylene fiber is one of the five major fibers in the world. It has rich sources of raw materials, simple manufacturing process, low cost (about half of polyester), and has incomparable advantages of ordinary fibers, such as light texture, high strength, good elasticity, Corrosion resistance, no pilling, moisture conductivity, good warmth retention, etc. However, since the polypropylene fiber macromolecule has an extremely regular isotactic structure and does not contain any dyeable groups, this fiber with very good wearing properties cannot be dyed at all, which seriously hinders the use of this fiber in clothing. development in this vast market. Therefore, the solution to the dyeable prob...

Claims

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Application Information

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IPC IPC(8): D06P1/16D06P5/22
Inventor 师杨高曙光李兰刘必前
Owner 北京德士风服装领带有限公司
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