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High-water-absorption high-strength polyester fiber writing head and preparation method thereof

A polyester fiber and high-strength technology, which is applied in the field of high water absorption and high strength polyester fiber nibs and its preparation, can solve the problem that polyester fiber nibs cannot have high water absorption and high strength at the same time, and achieve the best promotion value. The effect of simple process and high water absorption

Active Publication Date: 2018-06-15
DONGHUA UNIV +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a high water absorption and high strength polyester fiber nib and its preparation method in order to overcome the problem that the polyester fiber nib in the prior art cannot have high water absorption and high strength at the same time

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A preparation method of high water absorption and high strength polyester fiber nib, the specific steps are as follows:

[0035] (1) Perform alkali weight reduction treatment after paralleling polyester fibers, wash with deionized water at 25°C and dry in an oven at 65°C for 5 hours, wherein the fineness of polyester fibers is 3dtex, and the lye for alkali weight reduction treatment is Concentration 0.8wt% NaOH solution, the temperature of alkali reduction treatment is 95 ℃, time is 15min, the weight reduction rate of polyester fiber after alkali reduction treatment is 10%;

[0036] (2) Preliminary heat setting, the temperature of the preliminary heat setting is 215°C, and the time is 1.5min;

[0037] (3) Use a two-component polyurethane adhesive for dipping, the mass ratio of the soft segment component to the hard segment component in the two-component polyurethane adhesive is 1:1.3, and the dipping time is 1.5 min;

[0038] (4) Preheat and solidify and foam the impre...

Embodiment 2

[0043] A preparation method of high water absorption and high strength polyester fiber nib, the specific steps are as follows:

[0044] (1) Alkali reduction treatment is carried out after the polyester fiber is doubled, washed with deionized water at 28°C and dried in an oven at 60°C for 4 hours, wherein the fineness of the polyester fiber is 1dtex, and the lye for alkali reduction treatment is Concentration 0.5wt% NaOH solution, the temperature of alkali weight reduction treatment is 90 ℃, time is 12min, the weight reduction rate of polyester fiber after alkali weight reduction treatment is 12%;

[0045] (2) Preliminary heat setting, the temperature of the preliminary heat setting is 220°C, and the time is 1min;

[0046] (3) Use a two-component polyurethane adhesive for dipping, the mass ratio of the soft segment component to the hard segment component in the two-component polyurethane adhesive is 1:1.5, and the dipping time is 1.7 minutes;

[0047] (4) Preheat and solidify ...

Embodiment 3

[0052] A preparation method of high water absorption and high strength polyester fiber nib, the specific steps are as follows:

[0053] (1) Alkali weight reduction treatment is carried out after the polyester fibers are paralleled, washed with deionized water at 20°C and dried in an oven at 66°C for 4.5 hours. Be the NaOH solution of concentration 0.3wt%, the temperature of alkali weight reduction treatment is 93 ℃, the time is 14min, the weight reduction rate of polyester fiber after alkali weight reduction treatment is 15%;

[0054] (2) Preliminary heat setting, the temperature of the preliminary heat setting is 200°C, and the time is 1min;

[0055](3) Use a two-component polyurethane adhesive for dipping, the mass ratio of the soft segment component to the hard segment component in the two-component polyurethane adhesive is 1:1.2, and the dipping time is 1.8 minutes;

[0056] (4) Preheat and solidify and foam the impregnated fiber bundles. The preheating temperature is 88°...

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 relates to a high-water-absorption high-strength polyester fiber writing head and a preparation method of high-water-absorption high-strength polyester fiber writing heads. The preparation method comprises the specific steps that (1), polyester fibers are twisted together and then are subject to alkali weight reduction processing, washing and drying; (2), initial heat setting is performed; (3), a two-component polyurethane adhesive is adopted for gum dipping; (4), fiber bundles dipped with the adhesive are preheated, cured and foamed; (5), completely-foamed fiber rods are cut andground; and (6), the high-water-absorption high-strength polyester fiber writing heads are obtained after cleaning and drying, and each of the finally-obtained polyester fiber writing heads has the water absorption of 59.0-62.8% and the strength of 15-22 N. The preparation method of the high-water-absorption high-strength polyester fiber writing heads has the beneficial effects that the process is simple, and each of the prepared polyester fiber writing heads has the high strength while the high water absorption is ensured and has the extremely high popularization value.

Description

technical field [0001] The invention belongs to the field of fiber nib preparation, and relates to a polyester fiber nib with high water absorption rate and high strength and a preparation method thereof. Background technique [0002] At present, the main parts of common marking pens on the market include fiber nibs, fiber water storage cores and marking pen ink. There are mainly three kinds of fiber materials commonly used in the preparation of fiber pens, namely polyester fiber, polyamide 6 fiber and polyacrylonitrile fiber. Among them, polyester fiber is used because of its high strength, high toughness and excellent wear resistance. Widely used in the preparation of pen tips for whiteboard markers and highlighters. [0003] At this stage, with the continuous improvement of people's requirements for life, study and work, people put forward higher requirements for the writing function of commonly used marker pens. The requirements for wear resistance and environmental pr...

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): B43K1/12
CPCB43K1/12
Inventor 陈龙孙俊芬任贺王兆伦史玮玮殷永生
Owner DONGHUA UNIV
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