Screen textile material
AssigneesKuraray Co., Ltd., NBC Industries Co., Ltd.
InventorsJunyo Nakagawa, Takashi Katayama, Toru Yokomizo, Hiroki Sano
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Abstract
A screen textile material for high precision and high density screen printing is made of a core and sheath type conjugate fiber in which a core component is formed of a thermotropic liquid crystalline polyester (A polymer) and a sheath component is formed by blending a flexible thermoplastic polymer (B polymer) and a thermotropic liquid crystalline polyester (C type) with a blending ratio of the C polymer of 0.15 to 0.45. The core and sheath type conjugate fiber has a specific color specification values to perform high quality printing by prevention of halation.
Claims18
A screen textile material comprising a core and sheath conjugate fiber comprising
- (1) a core component formed of (A) thermotropic liquid crystalline polyester and
- (2) a sheath component formed by blending
- (B) flexible thermoplastic polymer and
- (C) thermotropic liquid crystalline polyester,
- wherein the amount of polyester (C) to the mixture of polymer (B) and polyester (C), namely {(C)/(C+B)}, is from 0.15 to 0.45,
- wherein the core and sheath conjugate fiber has the following color specification values:
- 18.ltoreq.b*.ltoreq.35 (1)
- 0.5.ltoreq.a*.ltoreq.10 (2)
- 55.ltoreq.L*.ltoreq.80 (3)
- wherein b*=200[(Y/Y.sub.0).sup.1/3 -(Z/Z.sub.0)]
- a*=500[(X/X.sub.0).sup.1/3 -(Y/Y.sub.0).sup.1/3 ]
- L*=116(Y/Y.sub.0).sup.1/3 -16, and
- X, Y, and Z denote tristimulus values.
Dependencies are inferred from the claim text.