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Hydrophilized cellulose acetate tow band, and absorbent material produced using same

A technology of cellulose acetate and hydrophilization, which is applied in chemical post-treatment of cellulose/protein artificial filaments, absorbent pads, fiber treatment, etc., can solve problems such as quality degradation and deterioration of working environment, and achieve improved water absorption characteristics, liquid Excellent retention and thickness reduction effect

Active Publication Date: 2016-11-16
DAICEL CHEM IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In such fiber oil application technology in the spinning process, evenly applying the fiber oil will improve the bundleability, smoothness, antistatic properties, etc. of the fiber strands, thereby preventing the occurrence of the following problems. Attention: Quality degradation due to fiber damage due to contact abrasion with equipment, deterioration of working environment due to fiber pieces cut due to abrasion, quality due to fiber pieces cut due to abrasion decline

Method used

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  • Hydrophilized cellulose acetate tow band, and absorbent material produced using same
  • Hydrophilized cellulose acetate tow band, and absorbent material produced using same
  • Hydrophilized cellulose acetate tow band, and absorbent material produced using same

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0102] Fiber oil (mineral oil, trade name "DC-18", manufactured by Matsumoto Yuyu Pharmaceutical Co., Ltd.) was adjusted to 35°C, and water (dilution water) adjusted to 35°C was added thereto and stirred to prepare an emulsion A fiber oil emulsion with a concentration of 40% by weight.

[0103] In addition, the phase transition point of the above-mentioned fiber oil is 50% by weight, and the dilution rate at the phase transition point is 0.13 kg / min per 1 kg of the fiber oil. The average particle size of the emulsion was 0.199 μm. In addition, the total light transmittance of 850 nm light measured at the emulsion concentration of 5% by weight of the obtained fiber oil emulsion was 34.8%.

preparation example 2

[0105] A hydrophilizing agent (polyoxyethylene sorbitan monolaurate, HLB value 16.7, manufactured by Matsumoto Yuyu Pharmaceutical Co., Ltd.) was dissolved in water to prepare a hydrophilizing agent aqueous solution having a concentration of 8.5% by weight.

preparation example 3

[0107] 100 parts by weight of the aqueous hydrophilizing agent solution obtained in Preparation Example 2 was added to 30 parts by weight of the fiber oil agent emulsion obtained in Preparation Example 1 and mixed to prepare a fiber oil agent-hydrophilizing agent mixed liquid.

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Abstract

A hydrophilized cellulose acetate tow band according to the present invention is characterized in that a hydrophilizing component having an HLB value of 16 or more is adhered onto the surface of a crimped cellulose acetate tow band, wherein the crimped cellulose acetate tow band is formed from a cellulose acetate having a substitution degree of 2.0 to 2.6 and has a total denier of 10000 to 40000 and the number of crimps of 30 to 60 crimps / inch, and wherein the amount of the hydrophilizing component to be adhered is 0.2 to 2% by weight relative to the weight of the cellulose acetate tow band. In addition to the hydrophilizing agent having an HLB value of 16 or more, a fiber oiling agent may also be adhered onto the surface of the crimped cellulose acetate tow band in an amount of 0.2 to 2% by weight relative to the weight of the cellulose acetate tow band.

Description

technical field [0001] The present invention relates to a hydrophilized cellulose acetate tow tape useful as an absorbent material for absorbent bodies for hygienic materials such as diapers and sanitary products, a fiber sheet formed of the hydrophilized cellulose acetate tow tape, and An absorbent body (absorbent article) using the fiber sheet. This application claims priority based on Japanese Patent Application No. 2014-75094 for which it applied in Japan on April 1, 2014, and uses the content here. Background technique [0002] Conventionally, absorbers used for sanitary products such as disposable diapers are formed of polymer absorbers such as fluff pulp and SAP (superabsorbent resin). Such an absorber is thick and inconvenient to carry. In addition, in the case of fluff pulp, since the fiber itself absorbs water, there is also a problem that the liquid permeation rate is slow. [0003] In order to solve the above-mentioned problems of conventional absorbents using...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/53A61F13/53D06M13/02D06M13/165D06M13/224D06M101/08
CPCD06M13/02D06M13/224D06M15/53D04H3/013A61F2013/530153D06M13/17D01F11/02D06M2101/08A61F13/53D06M13/165A61F13/15617A61F2013/530167A61F2013/530299A61F2013/530343A61F2013/530379A61F2013/530481
Inventor 中村敏和重松雅人
Owner DAICEL CHEM IND LTD
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