Synthesis method and application of formaldehyde-free acid dye fixing agent

A technology of acid dyes and synthesis methods, applied in dyeing, textile and papermaking, etc., can solve the problem of insufficient color fixing effect of polyester fibers and silk fabrics, poor wet ironing fastness and chlorine immersion fastness, affecting fabrics. Color light and hand feel, etc., to achieve the effect of promoting industrialization, improving fastness to friction and perspiration, and improving color fastness

Inactive Publication Date: 2016-05-04
SUZHOU INSILK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the disadvantage is that the color fastness is not greatly improved, and because of the small molecules of this type of color fixing agent, the color fixing effect of dipping is not very good. Generally, padding is used for color fixing, which is used for acid dye color fixing treatment. There is a certain improvement, but it will affect the shade and feel of the fabric
The diallyl polymer cationic color-fixing agent can form a film on the surface of the fabric, and the treated fabric has good color and luster, which is better for reactive dyes. However, due to the lack of reactive groups, secondary amino groups and Amino group, poor effect on wet iron fastness and chlorine immersion fastness
[0005] In 2012, Wang Li of Soochow University published a master's thesis titled "Synthesis and Application of Acid Dye Fixing Agent", using acrylic acid (AA), acrylamide (AM), 2-acrylamide-2-methylpropanesulfonate Acid (AMPS) as raw material, ammonium persulfate as initiator, a formaldehyde-free acid dye fixing agent 3A was synthesized by solut

Method used

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  • Synthesis method and application of formaldehyde-free acid dye fixing agent
  • Synthesis method and application of formaldehyde-free acid dye fixing agent
  • Synthesis method and application of formaldehyde-free acid dye fixing agent

Examples

Experimental program
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Effect test

Embodiment 1

[0040] A method for synthesizing formaldehyde-free acid dye fixing agent, using acrylic acid, 2-naphthol, 2-acrylamide-2-methylpropanesulfonic acid as raw materials, ammonium acetate as initiator, and nickel chloride as catalyst. It includes the following steps:

[0041] Add 12 times the weight of acrylic acid to the acrylic acid and mix the mixture uniformly and raise the temperature to 15°C, add nickel chloride (the addition amount is 0.1% of the weight of acrylic acid) and mix uniformly, keep the temperature for 3 hours;

[0042] Add 2-naphthol and 2-acrylamide-2-methylpropanesulfonic acid solids so that the mass concentrations of 2-naphthol and 2-acrylamide-2-methylpropanesulfonic acid are 15% and 20% respectively, and mix Reflux and heat for 3h after homogenization;

[0043] Slowly add ammonium acetate aqueous solution (mass concentration of 20%) so that the ammonium acetate concentration is 0.4%, and the temperature of the water bath is 60°C and the reaction is stirred at low ...

Embodiment 2

[0046] A method for synthesizing formaldehyde-free acid dye fixing agent, using acrylic acid, 2-naphthol, 2-acrylamide-2-methylpropanesulfonic acid as raw materials, ammonium acetate as initiator, and nickel chloride as catalyst. It includes the following steps:

[0047] Add 13 times the weight of acrylic acid to the acrylic acid and mix the mixture uniformly and raise the temperature to 20°C, add nickel chloride (addition amount is 0.3% of the acrylic acid weight) and mix uniformly, keep it warm and stand for 5h;

[0048] Add 2-naphthol and 2-acrylamide-2-methylpropanesulfonic acid solids so that the mass concentrations of 2-naphthol and 2-acrylamide-2-methylpropanesulfonic acid are 20% and 22% respectively, and mix Reflux and heat for 4h after homogenization;

[0049] Slowly add ammonium acetate aqueous solution (with a mass concentration of 25%) to make the mass concentration of ammonium acetate 0.7%, and the temperature of the water bath is 65°C with low-speed stirring for 14 ho...

Embodiment 3

[0052] A method for synthesizing formaldehyde-free acid dye fixing agent, using acrylic acid, 2-naphthol, 2-acrylamide-2-methylpropanesulfonic acid as raw materials, ammonium acetate as initiator, and nickel chloride as catalyst. It includes the following steps:

[0053] Add 12 times the weight of acrylic acid to the acrylic acid and mix it evenly and heat it up to 20°C, add nickel chloride (additional amount is 0.1% of the weight of acrylic acid) and mix it evenly, keep it warm and stand for 5 hours;

[0054] Add 2-naphthol and 2-acrylamide-2-methylpropanesulfonic acid solids so that the mass concentrations of 2-naphthol and 2-acrylamide-2-methylpropanesulfonic acid are 15% and 22% respectively, and mix Reflux and heat for 3h after homogenization;

[0055] Slowly add ammonium acetate aqueous solution (with a mass concentration of 25%) so that the mass concentration of ammonium acetate is 0.4%, and the temperature of the water bath is 65°C with low-speed stirring for 12 hours;

[005...

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Abstract

The invention discloses a synthesis method and an application of a formaldehyde-free acid dye fixing agent and belongs to the field of textile chemical technologies. Acrylic acid, 2-isonaphthol and 2-acrylamide-2-methyl propane sulfonic acid are used as raw materials, ammonium acetate is added to be used as an initiator, nickel chloride is added to be used as a catalyst, the formaldehyde-free acid dye fixing agent is synthesized and applied to fixation treatment of nylon, silk and wool textiles as well as nylon, silk and wool blended textiles, the color fastness is improved, soaping fastness, rubbing fastness, perspiration fastness and the like of fibers after fixation treatment are improved more obviously, the raw materials and the product do not contain formaldehyde, and compared with acid dye fixing agents for beds in the market, the formaldehyde-free acid dye fixing agent is environment-friendly and efficient; meanwhile, the preparation method is simple and beneficial to industrial popularization and has the higher economic benefit.

Description

Technical field: [0001] The invention discloses a synthesis method and application of a formaldehyde-free acid dye fixing agent and belongs to the technical field of textile chemical industry. Background technique: [0002] Cotton, silk, wool and their blended textiles are often dyed with acid dyes. Traditional acid dyes refer to dyes that contain acidic groups in their molecular structure. Most of the acidic groups contained are in the form of sulfonates, and only a few varieties exist in the form of carboxylates. When acid dyes are dyed, there are two different attractive forces between the dye and protein fibers or Jinlun fibers: the intermolecular attraction between the dye and the non-polar part of the fiber, including oxygen bonds and van der Waals forces; the dye molecules ionize into bands in water The negatively charged anion binds to the positively charged amino group on the fiber by ionic bond, and the sulfonic acid group on the molecular structure of the acid dye mak...

Claims

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Application Information

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IPC IPC(8): C08F220/58C08F220/06C08F4/80D06P5/08D06P1/39D06P3/60D06P3/06D06P3/16
CPCC08F4/80C08F220/06C08F220/58C08F220/585D06P1/39D06P3/001D06P3/06D06P3/16D06P3/6008D06P5/08
Inventor 周继东
Owner SUZHOU INSILK CO LTD
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