Title:
繊維製品の熱成形法
Document Type and Number:
Japanese Patent JP6604583
Kind Code:
B2
Abstract:
To provide a thermoforming method for obtaining a thermoformed article that exhibits excellent abrasion resistance at melt-bonded portions, and excellent adhesive strength between woven fabrics or to another kind of article. Polyethylene having a melt flow rate, measured under conditions of a temperature of 280°C and a load of 2.16 kg, of 10 to 15 g/10 min and polyethylene terephthalate are prepared. By a conjugate melt spinning method using the polyethylene terephthalate as a core component and the polyethylene as a sheath component, multi-filament yarn in which core-sheath composite filaments having a core component : sheath component mass ratio of 1 to 4 : 1 are bundled is obtained. A product of filaments is obtained by weaving, knitting, braiding or winding using the multi-filament yarn. Thermoforming of the product of filaments is carried out by heating the product of filaments to melt the polyethylene, thereby melt-bonding the core-sheath composite filaments to each other, with the polyethylene terephthalate retaining its initial filament form.
Inventors:
Kohei Ikeda
Mariko Honda
Mariko Honda
Application Number:
JP2018167031A
Publication Date:
November 13, 2019
Filing Date:
September 06, 2018
Export Citation:
Assignee:
UNITIKA LTD.
International Classes:
D01F8/06; B32B5/02; B32B5/26; D01F8/14; D03D15/00; D04B1/16; D04B21/16; D04C1/02; D04C1/12; D06C7/00
Domestic Patent References:
| JP9302944A | ||||
| JP10102348A | ||||
| JP10276606A | ||||
| JP3260115A | ||||
| JP58208435A | ||||
| JP2005105259A | ||||
| JP2003268667A |
Attorney, Agent or Firm:
Shigeki Okumura