| 摘要 |
PURPOSE:To obtain fiber, converting near infrared rays in sunlight into heat, having heat insulating and storing properties and capable of instantaneously fusing mutual fibers with the near infrared rays and producing nonwoven fabrics. CONSTITUTION:The following fiber is provided. The fiber is obtained by including a product of reaction between a thiourea derivative and a copper compound as a near infrared ray absorbent in synthetic fiber by a method for mixing diphenylthiourea with copper stearate in a resin such as polyethylene terephthalate, melt spinning the resultant mixture, etc. Furthermore, the fiber is prepared by mixing the product of the reaction between the thiourea derivative with the copper compound as the near infrared absorbent in a resin to be a sheath part of fiber having a sheath-core structure and including the above- mentioned reaction product in the aforementioned sheath part. |
