Title:
NONWOVEN FABRIC AND APPARATUS FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/1989/005367
Kind Code:
A1
Abstract:
This invention relates to nonwoven fabric consisting of a combination of a plurality of wefts and warps, nonwoven fabric consisting of a combination of threads with films, and an apparatus for manufacturing such nonwoven cloths. In order to obtain nonwoven fabric having a high bonding strength of wefts and warps and a thread and a film, a high mechanical strength and a high durability, a thread consisting of a stratified structure composed of at least two kinds of resins of different melting points and having a surface layer of a synthetic resin the melting point of which is lower than that of a substrate resin is used. Threads of such a stratified structure are arranged crosswise as wefts and warps, or threads of the same structure and films of a synthetic resin are laminated. The product is subjected to thermal press-fixing at a temperature in the range from a level higher than the melting point of the surface layer-forming resin to a level lower than the melting point of the substrate resin, whereby the wefts and warps or the threads and films are combined unitarily by the fusion of the surface layer-forming resin. In the nonwoven fabric manufacturing apparatus according to the present invention, threads each of which has a stratified structure are fed as wefts in a zigzag direction over a pair of thread support members, and threads constituting warps, or films used instead of the warps are laminated on the lower surfaces of the wefts during the weft feeding operation so that the warps extend across the wefts, the product being subjected to press-fixing by heating the same to a predetermined temperature to obtain the above-mentioned nonwoven fabric. Especially, the two thread support members for feeding the wefts extend to a press-fixing unit, so that the above-mentioned nonwoven fabric can be manufactured without causing the wefts to be slackened or bent and the eyes among the wefts and warps to be deformed.
Inventors:
YABUKI MASUO (JP)
Application Number:
PCT/JP1988/000950
Publication Date:
June 15, 1989
Filing Date:
September 19, 1988
Export Citation:
Assignee:
HAGIHARA IND (JP)
International Classes:
B32B27/08; D04H3/04; D04H3/14; (IPC1-7): D04H3/14; B32B5/08; B32B27/04; D04H3/04
Foreign References:
| JPS61282467A | 1986-12-12 | |||
| JPH0656787U | 1994-08-05 | |||
| JP5567053A | ||||
| JPS52101875U | 1977-08-02 | |||
| JPH05142783A | 1993-06-11 | |||
| JPH05110883A | 1993-04-30 | |||
| JPS58180657A | 1983-10-22 | |||
| JPS58180658A | 1983-10-22 | |||
| JPS58180659A | 1983-10-22 | |||
| JPS60166443A | 1985-08-29 | |||
| JPS53144981U | 1978-11-15 |
Other References:
See also references of EP 0344318A4
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