Finishing agent of polysiloxane fiber, and producing method

A technology of fiber finishing and polysiloxane, applied in the field of softeners, can solve the problems of poor self-crosslinking, no contribution to dry and wet rubbing fastness of dyed fabrics, etc.

Inactive Publication Date: 2009-09-09
LIAONING FIXED STAR FINE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above two products can meet the softening and finishing needs of general users in terms of softness and smoothness, but their own cross-linking properties are poor, and they do not contribute to the dry and wet rubbing fastness of dyed fabrics.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (A) 120 grams of octamethylcyclotetrasiloxane, (B) 2.5 grams of N-β-aminoethyl-γ-aminopropylmethyldimethoxysilane, (C) 3-glycidyloxypropyl 3.5 grams of methyldiethoxysilane, (E) 0.8 grams of potassium hydroxide, (D) 2 grams of isopropanol, mixed into a 250ml reaction bottle, heated to 60-70 ° C, reacted for 2 hours, and then Raise the temperature to 85-95°C and maintain it for 6-8 hours to reach the desired viscosity, then lower the temperature and discharge the material to obtain the product of the present invention.

Embodiment 2

[0026] According to the same method as in example 1, (A) selects organosilicon monomer to use α, - Dihydroxy dimethyl siloxane (molecular weight 3000), and control the vacuum degree of the system between 0.03-0.04Mpa, the obtained product has a better softening effect.

Embodiment 3

[0028] Put (A)α, ——Dihydroxydimethylsiloxane 160 grams, (B) Diethylenetriamine-γ-propylmethyldimethoxysilane 5 grams, (C) 3-glycidyloxypropylmethyldiethoxy Silane or 3-glycidyloxypropylmethyldimethoxysilane 3.5 grams, (E) tetramethylammonium hydroxide 0.15 grams, (D) isopropanol 2 grams, mix and join in the 250ml reaction flask, heat up to 85-95°C, react for 2 hours, then raise the temperature to 85-95°C, and control the vacuum degree of the system between 0.03-0.04Mpa, and maintain it for 3-5 hours to reach the required viscosity. Invention.

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PUM

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Abstract

The basic component of polysiloxane fiber finishing agent of the present invention is linear organopolysiloxane, and its viscosity at 25 ℃ is in the scope of 100 to 100,000 centipoises, and its general formula is: XO-(-Si-R1O- )a-(-Si-Me2-O-)b-(-Si-R2O-)cX wherein: X is a hydrogen atom or a linear alkyl group containing 1 to 3 carbon atoms; R1 is a C3 containing an amino substituent -C10 straight chain alkyl; R2 is C3-C10 straight chain alkyl containing epoxy group; a=1-20; b=200-600; c=1-20. It is prepared from organosilicon monomer, amino organosilane compound, epoxy organosilane compound, lower alcohol and catalyst through polymerization reaction. It has multiple effects such as softness, smoothness and color fixation.

Description

technical field [0001] The invention relates to a softener used in textile finishing, which is a cross-linked polysiloxane softener. Background technique [0002] The basic components of silicone softeners are various linear polysiloxanes, namely silicone oils. According to the nature of the substituent on the silicon atom, silicone oil can be divided into reactive modified silicone oil and non-reactive modified silicone oil. [0003] The silicone oil modified by aminoethylaminopropyl group is called standard amino silicone oil, because of its soft main chain and low surface tension, it is easy to spread and form a film on the surface of the fiber. And other interactions, can be very firmly oriented and adsorbed on the fiber, reduce the friction coefficient between fibers, and endow the fabric with ideal soft and smooth effect. At present, the representative softeners used in the market for fiber finishing are 4708 from GE Corporation of Japan and 2-8040 from Dow Corning C...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/647
Inventor 严欣宁荣星倪成涛仇凯
Owner LIAONING FIXED STAR FINE CHEM
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