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Patent Searching and Data


Title:
FIBERS FOR ARTIFICIAL HAIR
Document Type and Number:
WIPO Patent Application WO/2018/037706
Kind Code:
A1
Abstract:
Provided are fibers for artificial hair which each retain a wavy shape and which render free changes in hairstyle possible at home. The fibers for artificial hair according to the present invention each have a retention of flexural rigidity, as defined by numerical equation (1), of 40-80% and a degree of heat shrinkage, as defined by numerical equation (2), of 0.0-5.0%. Retention of flexural rigidity (%) = 100×{(flexural rigidity after 24-hour conditioning at 30°C and 90% RH)/(flexural rigidity after 24-hour conditioning at 23°C and 50% RH) (1) Degree of heat shrinkage (%) = 100×{(length before heat treatment)-(length after 5-minute heat treatment at 155°C)}/(length before heat treatment) (2)

Inventors:
HORIHATA, Atsushi (Ofuna Plant 13-1, dai 2-chom, Kamakura-city Kanagawa 10, 〒2478510, JP)
TAKEI, Atsushi (Ofuna Plant 13-1, dai 2-chom, Kamakura-city Kanagawa 10, 〒2478510, JP)
SUZUKI, Rentaroh (1-1 Nihonbashi-Muromachi 2-chome, Chuo-k, Tokyo 38, 〒1038338, JP)
Application Number:
JP2017/023558
Publication Date:
March 01, 2018
Filing Date:
June 27, 2017
Export Citation:
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Assignee:
DENKA COMPANY LIMITED (1-1 Nihonbashi-Muromachi 2-chome, Chuo-ku Tokyo, 38, 〒1038338, JP)
International Classes:
A41G3/00
Domestic Patent References:
WO2015056629A12015-04-23
WO2010119758A12010-10-21
WO2010038679A12010-04-08
Foreign References:
JP2008002041A2008-01-10
JP2012251256A2012-12-20
JP2010047846A2010-03-04
Attorney, Agent or Firm:
SK INTELLECTUAL PROPERTY LAW FIRM et al. (Hiroo-Building 4th Floor, 3-12-40 Hiroo, Shibuya-k, Tokyo 12, 〒1500012, JP)
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