Polyquaternium cationic formaldehyde-free fixing agent and preparing method thereof

A technology of formaldehyde-free color-fixing agent and polyquaternium salt, which is applied in the field of formaldehyde-free color-fixing agent and its preparation, can solve the problem of little effect of color-fixing effect on superfine fiber base cloth, increase of dyeing cost and difficulty of wastewater treatment, super The poor dyeability of fine fiber base fabrics and other problems can achieve high industrial application value, good color fixing effect, and the effect of improving color fastness to wet rubbing and color fastness to dry rubbing

Inactive Publication Date: 2015-12-16
北京德成嘉化工科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, due to the poor dyeability of nylon itself; on the other hand, due to the very fine fibers produced, the dyeability of the microfiber base fabric is poor and the color fastness is low
Conventional polyamine-based forma

Method used

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  • Polyquaternium cationic formaldehyde-free fixing agent and preparing method thereof
  • Polyquaternium cationic formaldehyde-free fixing agent and preparing method thereof
  • Polyquaternium cationic formaldehyde-free fixing agent and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0026] Example 1

[0027] (1) Synthetic intermediate product 1

[0028] In the reactor 1, add diethylenetriamine (10.3kg) and deionized water (10L), stir, pour in nitrogen, heat to 60℃, start dropping epichlorohydrin (9.3kg), control the reactor The temperature does not exceed 80°C. After the dropwise addition of epichlorohydrin is completed, the temperature is controlled to 75°C. After 1.5h of reaction, the reaction stops. The product is a light yellow transparent and slightly viscous liquid, pH=8-9, and the solid content is 66.18%. .

[0029] (2) Synthetic intermediate product 2

[0030] In reactor 2, add deionized water (10L), methanol (20L), epichlorohydrin (9.3kg), stir, add triethylamine (12.2kg) in batches, heat to 55°C, control the reaction temperature Do not exceed 60°C, the reaction stops after 2h, the product is a colorless and transparent solution, pH=9-10, and the solid content of the product is 45.4%.

[0031] (3) Grafting reaction

[0032] Combine the reaction liquids i...

Example Embodiment

[0034] Example 2

[0035] (1) Synthetic intermediate product 1

[0036] In reactor 1, add ethylenediamine (3.0kg) and deionized water (5L), stir, pour in nitrogen, heat to 65℃, start to add epichlorohydrin (4.6kg) dropwise, control the reactor temperature After the dropwise addition of epichlorohydrin is not over 80℃, the temperature is controlled to 75℃. After 2h of reaction, the reaction stops. The product is a light yellow, transparent and slightly viscous liquid with pH=8 and solid content of 68.38%.

[0037] (2) Synthetic intermediate product 2

[0038] In reactor 2, add trimethylamine aqueous solution (23.3kg, 33% trimethylamine mass fraction), methanol (30L), epichlorohydrin (9.3kg), stir, heat up to 55℃, control the reaction temperature not to exceed The reaction was stopped after 2.5 hours at 60°C. The product was a colorless and transparent solution, pH=9, and the solid content of the product was 46.8%.

[0039] (3) Grafting reaction

[0040] Combine the reaction liquids aft...

Example Embodiment

[0042] Example 3

[0043] (1) Synthetic intermediate product 1

[0044] In reactor 1, add triethylenetetramine (14.6kg) and deionized water (10L), stir, pass nitrogen, heat to 60°C, start dripping epichlorohydrin (9.3kg), control the reactor The temperature does not exceed 80°C. After the dropwise addition of epichlorohydrin is completed, the temperature is controlled to 75°C. After 1 hour of reaction, the reaction stops. The product is a light yellow, transparent, slightly viscous liquid, pH=9, and a solid content of 65.16%.

[0045] (2) Synthetic intermediate product 2

[0046] In reactor 2, add deionized water (10L), methanol (20L), epichlorohydrin (9.3kg), stir, add triethylamine (12.2kg) in batches, heat to 55°C, control the reaction temperature Do not exceed 60°C, the reaction stops after 2h, the product is a colorless and transparent solution, pH=9-10, and the solid content of the product is 45.4%.

[0047] (3) Grafting reaction

[0048] Combine the reaction liquids in step (1)...

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PUM

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Abstract

The invention relates to a fixing agent and a preparing method thereof, in particular to a polyquaternium cationic formaldehyde-free fixing agent used for dyeing superfine fiber synthetic leather and a preparing method thereof. According to the fixing agent, quaternary ammonium branches are grafted on a molecular chain of a polymeric polyamine condensation compound to form a comb-shaped polymer in which quaternary ammonium and tertiary amine cations coexist. The fixing agent can effectively improve wet friction color fastness and dry-rubbing-resisting color fastness of the dyed superfine fiber synthetic leather and has a good fixing effect on the superfine fiber synthetic leather, and the preparation method of the fixing agent is simple and low in cost and has high industrial application value.

Description

technical field [0001] The invention relates to a color-fixing agent and a preparation method thereof, in particular to an formaldehyde-free color-fixing agent used for dyeing superfine fiber synthetic leather and a preparation method thereof. Background technique [0002] As a kind of dyeing auxiliary, color fixing agent can improve and enhance the fastness of textile dyeing, and make the dye and fiber more effectively fixed. The earliest color fixing agent used the condensate of dicyandiamide and formaldehyde, but due to the high content of free formaldehyde, it has been banned. Present formaldehyde-free color-fixing agent generally adopts the condensate of polyamine and epichlorohydrin, as the manufacturing process of the formaldehyde-free color-fixing agent formulated by diethylenetriamine and epichlorohydrin disclosed in CN1534133 patent application, this Color-fixing agents have better color-fixing effects on ordinary textiles, but they have the problem of slightly lo...

Claims

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Application Information

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IPC IPC(8): D06P5/08C08G73/04
Inventor 卢丽燕
Owner 北京德成嘉化工科技有限责任公司
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