The Pilot Ink Co., Ltd.

Naoya Ishimura

Yutaka Shibahashi

Hiroshi Inagaki

Yoshiaki Ono

Kuniyuki Senga

Norikazu Nakasuji

Takashi Kataoka

Tsutomu Tomatsu

Kyoji Aoyama

Tutomu Kito

Nobuaki Matunami

Katuyuki Fujita

Masaharu Ozaki

A temperature-sensitive color-changeable composite fiber comprising a phase-(A) thermochromic resin phase formed of a polyolefin resin in which a thermochromic material and an adhesive resin having a molecular weight of 200 to 10,000 or a copolymer resin of an olefin with a unit monomer capable of forming a polymer having a solubility parameter (SP value) of 9.0 or more have been dispersed or dissolved, and a phase-(B) resin phase selected from nylon 12, a copolymer nylon, polyhexamethylene terephthalate and a saturated aliphatic polyester; the phase-(A) and the phase-(B) being joined to each other. This fiber can satisfy the glossiness and touch of fibers, and color changes caused by temperature changes can clearly be sighted thereon. It also can enhance commercial value of various fiber materials and that of wigs for doles and so form, making use of such a fiber.

Temperature-sensitive color-changeable composite fiber

Thermochromic acrylic synthetic fiber, its processed article, and process for producing thermochromic acrylic synthetic fiber

In a core/sheath type temperature-sensitive shape-transformable composite filament comprising a thermoplastic resin (A) and a thermoplastic polymer (B) having a glass transition temperature within the range of from 0.degree. C. to 70.degree. C., the composite filament is constituted in proportions satisfying the following expressions (1), (2) and (3). In the core;

Core/sheath type temperature-sensitive shape-transformable composite

A thermoplastic resin composition comprising a thermoplastic resin (A) and a thermoplastic polymer (B) having a glass transition temperature within the range of from -20.degree. C. to 70.degree. C. which are melt-blended in a proportion (A)/(B) of from 95/5 to 20/80 in weight ratio. The composition, upon application of an external stress in a temperature region of from a temperature about the glass transition temperature of the thermoplastic polymer (B) to the melting point thereof, is transformable to any shape that conforms to that stress, and is capable of becoming fixed to the transformed shape in a temperature region lower than the glass transition temperature. The composition can be used to provide a temperature-dependent shape-transformable/fixable product formed of the above composition.

Thermoplastic resin compositions and temperature-dependent

A textile material in the form of fiber, raw stock, yarn or fabric, which comprises fibers each of which is coated with a thermochromic layer containing a thermochromic pigment having a particle size satisfying the formula: ##EQU1## wherein r represents a particle size of a pigment; D represents fineness (denier) of a fiber; and d represents a density (g/cm.sup.3) of a fiber. The textile material can undergo reversible color change in a wide variety of colors and can be applied to any kind of textile products.

Thermochromic textile material

Growing community of inventors

Oobu, Japan

Naoya Ishimura