Fibrilia grafting amination modifying process

A technology of hemp fiber and grafted amine, which is applied in the field of textile printing and dyeing auxiliaries, can solve the problems of environmental pollution, inability to degrade and recycle, and negative impact on water quality and soil, etc., to achieve improved softness and hygroscopicity, remarkable dyeing performance, The effect of improving dyeing performance

Inactive Publication Date: 2008-07-23
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of a large amount of inorganic salts cannot be degraded and recycled, and has a great negative impact on water quality and soil, causing environmental pollution

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Fibrilia grafting amination modifying process
  • Fibrilia grafting amination modifying process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Preparation of oxidized flax fabric: the preparation mass percentage is 0.4% NaIO 4 Add a certain amount of linen fabric to the aqueous solution, control the bath ratio to 1:30, react at a temperature of 40° C. for 15 minutes, and rinse the linen fabric with water several times.

[0030] Amino-terminated hyperbranched compound grafted flax fabric process: put the oxidized flax fabric in a solution of 1% amino-terminated hyperbranched compound by mass percentage, react at a temperature of 60°C for 5 minutes, take it out, wash it with water, and dry it to obtain a surface-grafted flax fabric. Aminated modified linen fabric.

[0031] The principle of the technical solution of the present invention is shown in Figure 1, referring to accompanying drawing 1, hemp fiber 1 can be selectively oxidized under the effect of oxidizing agent such as sodium periodate, and C-2 and C-3 form aldehyde groups, endow oxidation The reactivity of the hemp fiber 2; the oxidized hemp fiber und...

Embodiment 2

[0036] Preparation of oxidized ramie fabric: Prepare a 0.4% aqueous solution by mass, add a certain amount of ramie fabric, control the bath ratio 1:30, take it out after reacting at 40°C for 30 minutes, and rinse the ramie fabric several times with deionized water.

[0037] Preparation of amino-terminated hyperbranched compounds with amino quaternization:

[0038] Place 52ml of polyamino compound divinyltriamine in a 250ml three-necked flask, cool in an ice-water bath, and place in N 2 Under protection, use a constant pressure funnel to slowly add a mixed solution of 43ml methyl acrylate and 100ml methanol dropwise, and react at room temperature for 4 hours after the dropwise addition to obtain light yellow transparent AB 2 type monomer. Then it was transferred to a rotary evaporator eggplant-shaped flask, methanol was removed under reduced pressure, the temperature was raised to 150°C to continue the reduced-pressure reaction for 4 hours, and the reaction was stopped to obt...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a linen fiber modification method, in particular to a linen fiber graft aminization modification craft, belonging to the technical field of printing and dyeing, which is characterized in that the linen fiber is selectively oxidized with oxidant solution such as sodium periodate, and oxidation linen fiber is obtained; the surface aldehyde group of the oxidation linen fiber is reacted with the surface amino of amine-terminated overbranched compound and the quaternary ammonium salt, which are combined by covalent bond, and the graft aminization linen fiber is prepared; the abundant amino, imino group and quaternary ammonium branched chain are introduced on the surface of obtained fiber, which can increase significantly the dyeing performance of linen fiber, and simultaneously increase the pliability softness, hygroscopicity and antibacterial performance of linen fiber. The linen fiber modification method has the advantages of fast reaction rate, high graft efficiency, good fastness, convenient and easy operation, realization of non-salt dyeing for linen fiber after modification treatment, environment protection, simplified normal dyeing craft and wide potential application.

Description

technical field [0001] The invention relates to a modification method of hemp fiber, in particular to a modification process of hemp fiber graft amination, in order to improve the dyeing performance of hemp fiber and realize salt-free dyeing of hemp fiber with reactive dyes, and belongs to textile printing and dyeing auxiliaries technology field. Background technique [0002] Due to the high crystallinity, high degree of orientation, small inclination angle and closely arranged aggregate structure, hemp fiber has the defects of poor dyeability, which is manifested in the slow diffusion of dyes into the fiber, low dye uptake rate, low color fixation rate and color The fastness is poor, and the dyeing yield of many hemp fibers is not high, and some dark varieties need to be dyed twice to achieve the dyeing effect. In the Chinese invention patent "ramie fiber amination modification process" [CN1034766], a modification method of ramie fiber is disclosed. The ramie fiber is decr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/59D06M15/61D06M11/30D06P3/66D06M101/06
Inventor 张峰陈宇岳赵兵
Owner SUZHOU UNIV
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