A method for making an elasticised yarn and fabric manufactured from said yarn
Номер патента: EP3870744A1
Опубликовано: 01-09-2021
Автор(ы): Alberto Primo CANDIANI
Принадлежит: Candiani SpA
Опубликовано: 01-09-2021
Автор(ы): Alberto Primo CANDIANI
Принадлежит: Candiani SpA
Реферат: A method for making an elasticised yarn (9) comprises the steps of feeding a roving (1) made of a cotton-based natural fibre at a weight percentage of at least 50% and having a linear mass density set between 0.1 Nm and 50 Nm, preferably between 0.3 Nm and 25 Nm, to a stretching unit (30), and a step of extracting it from the stretching unit (30) at a speed higher than the unwinding speed; jointly pulling the stretched roving (3) and an elastic fibre (2) through an overlapping unit (40) by a ring spinning unit (50), forming a spool (59) of the elasticised yarn, wherein the elastic fibre (2) comprises a natural rubber containing more than 80% polyisoprene 1,4-cis, along with to sulphur as a vulcanisation agent at a concentration set between 0.5% and 3.0% by weight, and along with: a vulcanization accelerator and a vulcanization activator; an anti-tacking agent; an antioxidant agent; a stabilisation agent, the elastic fibre (2) obtained by longitudinally cutting a longitudinally cut flat yarn made of the natural rubber, in such a way to attain a linear mass density between 50 dtex and 1000 dtex, preferably between 100 dtex and 800 dtex, in particular between 150 dtex and 500 dtex. This way, by the above mentioned natural rubber composition, a cotton-based elasticised yarn can be obtained that is not likely to break either when being spun, or when used to make a fabric, in particular a denim fabric. An elasticised yarn obtained this way and a fabric, in particular a denim fabric, manufactured from this yarn.
A method for making an elasticised yarn and fabric manufactured from said yarn
Номер патента: AU2019365143B2. Автор: Alberto Primo CANDIANI. Владелец: Candiani SpA. Дата публикации: 2024-04-04.