METHOD FOR PREPARING DENIM MATERIAL HAVING THERMAL REVERSIBILITY BY USING PHASE CHANGE MATERIAL, AND DENIM MATERIAL HAVING THERMAL REVERSIBILITY, PREPARED BY METHOD

• Main Author: HWANG, Seung Tae
• Format: Patent
• Language: English; French; Korean
• Published: 21.03.2019
• Subjects: APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; LAUNDERING; LOOMS; METHODS OF WEAVING; NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING; TEXTILES; TREATMENT OF TEXTILES OR THE LIKE; TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS; WEAVING; WOVEN FABRICS

The present invention relates to a method for preparing a denim material having thermal reversibility by using a phase change material (PCM), and a denim material having thermal reversibility, prepared by the method, and, more specifically, provides: a method for preparing, from a cotton yarn, a denim material having thermal reversibility through warping, dyeing, yarn unwinding, sizing, weaving, singeing, washing, mercerization, tentering, desizing and inspection processes, wherein, in the weaving process, weaving is carried out using a common cotton yarn having passed through steps before the weaving process, as a warp, and using, as a weft, a blended yarn, alone or blended with another fiber, obtained by blend spinning, in a ratio of 30-70:70-30 parts by weight, a common cotton fiber and a PCM fiber obtained by adding, to a fiber spinning solution, a surface-reinforced microcapsule obtained by micro-encapsulating a PCM and surface-reinforcing the same with a polymer material, and spinning the same; and a denim material having thermal reversibility, prepared by the method. A denim material having a PCM stably mixed therein can be prepared by obtaining a fabric by: injecting a PCM microcapsule having a surface reinforcement layer, which is prepared by the method of the present invention, into a spinning solution and spinning the same so as to obtain a PCM fiber, and then using the same as a part or all of a weft so as to carry out weaving; and carrying out subsequent processes, that is, singeing, washing, mercerization, tentering, desizing and inspection processes. The denim material can be used as a high-class material having a cool and warm sensation because of latent heat characteristics of a PCM. La présente invention concerne un procédé permettant de préparer un matériau en denim présentant une réversibilité thermique à l'aide d'un matériau à changement de phase (PCM), et un matériau en denim présentant une réversibilité thermique préparé par le procédé, et concerne plus particulièrement : un procédé permettant de préparer, à partir d'un fil de coton, un matériau en denim présentant une réversibilité thermique par des processus d'ourdissage, de teinture, de dévidage de fil, d'encollage, de tissage, de flambage, de lavage, de mercerisage, de ramage, de désencollage et d'inspection, et, lors du processus de tissage, le tissage étant effectué à l'aide d'un fil de coton commun ayant traversé les étapes avant le processus de tissage, en tant que chaîne, et à l'aide, en tant que trame, d'un fil mélangé, seul ou mélangé à une autre fibre, obtenu par le filage de mélange, dans un rapport de 30 à 70 : 70 à 30 parties en poids, d'une fibre de coton commune et d'une fibre de PCM obtenue par l'ajout, à une solution de filage de fibre, d'une microcapsule renforcée en surface obtenue par micro-encapsulation d'un PCM et le renforcement de sa surface au moyen d'un matériau polymère, et son filage ; et un matériau en denim présentant une réversibilité thermique préparé par le procédé. Un matériau en denim ayant un PCM mélangé de façon stable en son sein peut être préparé en obtenant un tissu par : l'injection d'une microcapsule de PCM ayant une couche de renforcement de surface, qui est préparée par le procédé de la présente invention, dans une solution de filage et son filage de façon à obtenir une fibre de PCM, puis son utilisation comme une partie ou la totalité d'une trame de façon à effectuer un tissage ; et l'exécution de processus ultérieurs, c'est-à-dire de processus de flambage, de lavage, de mercerisage, de ramage, de désencollage et d'inspection. Le matériau en denim peut être utilisé comme matériau haut de gamme présentant une sensation de fraîcheur et de chaleur en raison des caractéristiques de chaleur latente d'un PCM. 본 발명은 상전이 물질을 이용한 열적 가역 특성을 갖는 데님 소재의 제조 방법 및 상기 방법에 의해 제조되는 열적 가역 특성을 갖는 데님 소재에 관한 것으로서, 더욱 구체적으로는 면사를 정경, 염색, 해사, 호부, 제직, 모소, 수세, 머서화, 텐터링, 축소 및 검사 과정을 거쳐 데님 소재를 제조하는 방법으로서, 상기 제직 과정에서, 경사로서는 상기 제직 전까지의 단계를 거친 일반 면사를 사용하고, 위사로서는 상전이 물질(PCM)을 마이크로 캡슐화하고 이를 고분자물질을 이용하여 표면 강화함에 의해 얻어진 표면 강화 마이크로 캡슐을 섬유 방사액에 첨가하여 방사함에 의해 얻어된 PCM 파이버와 일반 면사를 30~70:70~30의 중량비율로 혼방적하여 얻어진 혼방사를 단독 또는 타 섬유와 혼합으로 사용하여 제직하는 것을 특징으로 하는 열적 가역 특성을 갖는 데님 소재의 제조 방법 및 상기 방법에 의해 제조되는 열적 가역 특성을 갖는 데님 소재를 제공한다. 본 발명에 따른 방법에 의해 제조되는 표면 강화층을 갖는 PCM 마이크로 캡슐을 이용해 방사액에 투입하고 이를 방사하여 PCM 파이버를 얻은 후, 이를 위사의 일부 또는 전부로 사용하여 제직함에 의해 원단을 얻고, 이를 이용해 이후 공정, 즉 모소, 수세, 머서화, 텐터링, 축소 및 검사 과정을 거침으로써 PCM 물질이 안정적으로 혼입된 데님 소재를 제조할 수 있으며, 이러한 데님 소재는 PCM 물질의 잠열 특성으로 인해 냉온 감성을 갖는 고급 소재로서 활용될 수 있는 장점이 있다.