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Fiber, non-woven fabric and application thereof

A fiber and olefin polymer technology, applied in the field of non-woven fabrics, can solve the problems of pollution of manufacturing equipment, difficult to sustain and stable production, and excessive smoke, and achieve smoke suppression, excellent durability and hydrophilicity, and spinnability. excellent effect

Active Publication Date: 2012-11-21
MITSUI CHEM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] It is known that the spunbonded nonwoven fabric obtained by adding polyethylene glycol dilaurate with an average molecular weight of 400 to polypropylene described in Patent Document 2 has initial hydrophilicity, durable hydrophilicity, and softness. The property is also good, but there is a lot of smoke generated during high-temperature extrusion and spinning, and this fuming component will contaminate the manufacturing equipment, so it is difficult to maintain stable production

Method used

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  • Fiber, non-woven fabric and application thereof
  • Fiber, non-woven fabric and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0094] 19 parts by weight of poly(oxyethylene)-1,6-hexanediol dilaurate (diester-1) shown in Table 1 and poly(oxyethylene)sorbate shown in Table 1 Add anti- 0.05 parts by weight of an oxidizing agent (manufactured by Ciba, trade name Irgafos 168) was melt-kneaded and extruded at 230° C. to prepare a granular masterbatch (hydrophilic agent-1).

[0095] Next, 7.5 parts by weight of the above-mentioned hydrophilic agent-1 was added to 92.5 parts by weight of the propylene-ethylene random copolymer (PP-1) having a melting point (Tm): 142° C. and an MFR: 60 g / 10 minutes, and mixed. A propylene-based polymer composition (composition-1) was obtained.

[0096] In order to evaluate the extrusion performance, Composition-1 was put into a single-screw extruder (screw diameter 30mm, L / D=30), and heated and melted at an extrusion rate of 4.4kg / hr and a resin temperature of 200°C. The result was the composition -1 The ingestion state of the extruder screw was good (◯) as in the case where...

Embodiment 2～5

[0100] Except having changed the addition amount of di-fatty acid ester-1 and tri-fatty acid ester-1 used in Example 1 as shown in Table 1, it carried out similarly to Example 1, and obtained the long-fiber nonwoven fabric. Table 1 shows the properties and results of the obtained long-fiber nonwoven fabric.

Embodiment 6

[0102] In addition to replacing the difatty acid ester-1 used in Example 1 and using R in the formula (1) shown in Table 1 1 and R 2 Except that it was an alkyl group having 17 carbon atoms (diester-2), it carried out similarly to Example 1, and obtained the long-fiber nonwoven fabric. Table 1 shows the properties and results of the obtained long-fiber nonwoven fabric.

[0103] [Table 1]

[0104]

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Abstract

Disclosed is a fiber with which smoke emission during production of a non-woven fabric is reduced, and which moreover is favorable in an olefin polymer non-woven fabric that has both excellent initial hydrophilic properties and excellent enduring hydrophilic properties. Further disclosed is a non-woven fabric. The fiber comprises an olefin polymer composition containing, for every 100 masses of olefin polymer, 0.5-5 masses of a di-fatty acid ester of a poly(oxyalkylene) diol represented by the belowmentioned chemical formula (1) and 0.01-2.5 masses of a poly(oxyalkylene) sorbitan tri-fatty acid ester (the alkylene group being an ethylene, propylene or butylene group, the number of added moles being 10 to 40, and the fatty acid being an alkyl or an alkylene fatty acid having a carbon number of 12 to 18). R1-COO-(CnH2nO)a-C6H12-O(CnH2nO)b-CO-R2 (Formula 1) (In the formula, R1 and R2 represent an alkyl group having a carbon number of 11 to 17, and may be the same or different; and in (CnH2nO)a and (CnH2nO)b, n is an integer from 2 to 4 and a+b is 5-23.)

Description

technical field [0001] The present invention relates to a fiber having good spinnability, suppressing fuming during spinning, and excellent initial hydrophilicity and durable hydrophilicity, and a nonwoven fabric comprising the fiber. Background technique [0002] Nonwoven fabrics obtained from olefin-based polymers represented by polypropylene are widely used in various applications due to their excellent air permeability, flexibility, and light weight. Therefore, nonwoven fabrics are required to have various properties corresponding to their uses, and improvement of the properties is demanded. [0003] On the other hand, nonwoven fabrics containing olefin-based polymers are inherently hydrophobic, so when used in top sheets, wipers, etc. of sanitary materials such as disposable diapers and sanitary napkins, etc. Hydrophilic treatment is required. [0004] As one of the methods for hydrophilizing an olefin polymer, a method of using a polyoxyethylene difatty acid ester ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/46D01F1/10A61F13/15A61F13/472A61F13/49A61F13/511D04H3/007D04H3/14D04H1/4291D04H3/005
CPCD01F1/10D01F6/04D04H3/005A61F13/51121D04H1/4291Y10T442/60A61F13/15D01F6/46D04H3/007
Inventor 市川太郎川上吉久富田嘉彦
Owner MITSUI CHEM INC