Pointed brush thread made from recyclable organism-based raw material and preparation method

A technology of brush filament and pointed tip, which is applied in the field of pointed brush filament and its preparation, and can solve the problems of high equipment maintenance cost, harsh treatment conditions, and harmfulness

Inactive Publication Date: 2009-08-05
DUPONT XINGDA FILAMENTS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing chemical sharpening process cannot obtain uniform sharpened brush filaments, and its processing conditions are very harsh, which is harmful to people and has high equipment maintenance costs

Method used

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  • Pointed brush thread made from recyclable organism-based raw material and preparation method
  • Pointed brush thread made from recyclable organism-based raw material and preparation method
  • Pointed brush thread made from recyclable organism-based raw material and preparation method

Examples

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preparation example Construction

[0027] One aspect of the present invention provides a method for preparing pointed brush filaments, the method comprising the following steps:

[0028] a) Provide brush wire;

[0029] b) adding treatment liquid in the pointed brush filament treatment tank;

[0030] c) immersing the brush filaments obtained in step a) in the treatment liquid for treatment, and applying an auxiliary device during the treatment, and the auxiliary device keeps the treatment liquid at a uniform concentration during the entire treatment process;

[0031] Wherein, the depth at which the brush filaments are immersed in the treatment liquid in step c) changes with time.

[0032] In the present invention, the brush filament monofilament is conventional in the art, and those skilled in the art can directly know which brush filaments can be used in the present invention. In a preferred example of the present invention, the brush filament monofilament can be made of polyester (such as polybutylene tereph...

Embodiment 1

[0057] 1. Will Salona After being melt-spun and heat-set, it is covered with a pre-packaged stretch film to form a tow.

[0058] 2. Cut the spun tow into 50 mm long silk cakes with a shredder.

[0059] 3. Add 40% NaOH aqueous solution into the pointed brush filament forming tank to form a treatment solution. Then the treatment solution was heated to 120° C., and the above-mentioned silk cake was immersed in the treatment solution to a depth of 10 mm, and mechanically stirred near the silk cake. After 10 minutes of treatment, the yarn cake was lifted 2 mm, so that the immersion depth of the brush filaments was 8 mm. After a further 10 minutes of treatment, the cake was lifted again by 2 mm. Repeat the above steps until the silk cake completely leaves the liquid level of the treatment liquid.

[0060] 4. Wash off the treatment liquid on the surface of the pointed brush wire with clean water, dehydrate the brush wire with a dehydrator, and dry the brush wire in the sun.

Embodiment 2

[0062] The difference from Example 1 is that step 3: add 40% NaOH aqueous solution in the pointed brush filament forming tank to form a pointed treatment solution, then heat the treatment solution to 120 ° C, and the silk cake is immersed in a depth of 4 mm, with mechanical stirring near the silk cake. The processing time was 40 minutes.

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Abstract

The invention relates to a tip brush thread made of reproducible biobased raw materials and a preparing method thereof. The invention mainly provides the preparing method for the tip brush thread, which comprises the following steps: a) providing the brush thread; b) adding treatment fluid into a tip brush thread treatment trough; and c) soaking the brush thread obtained in step a) into the treatment fluid for treatment, and simultaneously improving the sharpening effect by mechanically stirring and/or circulating the treatment fluid through an auxiliary device, wherein the depth of the brush thread in step c) soaked in the treatment fluid is changed along with the time.

Description

technical field [0001] The invention relates to a pointed brush filament and a preparation method thereof, more specifically, the present invention relates to a pointed brush filament based on a renewable biological source and a preparation method for multi-step chemical sharpening and mechanically assisted sharpening. Background technique [0002] Generally, the filaments used in various brushes are made of synthetic materials and animal hair, for example, nylon 612, 610 is often used to make toothbrush filaments, and some petroleum-derived polyesters such as PBT, PET, PTT are also Used to make some toothbrush filaments for disposable toothbrushes. In the prior art, the head of the toothbrush wire is usually a flat head. This kind of toothbrush wire is not easy to remove the tartar embedded in the gap between the teeth during the tooth brushing process, and it is difficult to effectively clean every corner around the teeth. At the same time, the wire head It is hard and ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A46D1/05D06M11/38D06M11/55D06M11/11D06M11/70D06M101/32
CPCD06M10/02A46D1/05D06M11/55D01F11/04D06M11/38D01F11/08D06M2101/32A46D1/0276D06M11/70D06M11/13D01F6/62D06M10/06
Inventor 刘先桥王铭松孙难见
Owner DUPONT XINGDA FILAMENTS
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