A kind of hygroscopic heating yarn and its preparation and dyeing method
A technology of moisture absorption and heating, yarn, applied in dyeing method, yarn, liquid/gas/steam yarn/filament treatment, etc., can solve the problems of complicated procedure and poor dyeing uniformity, achieve high dyeing uniformity and reduce dyeing cost , Improve the effect of dyeing uniformity
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Embodiment 1
[0048] A hygroscopic and heating yarn, which is composed of 20% modified coffee charcoal polyester staple fiber and 80% viscose staple fiber by mass fraction, wherein the total amount of modified coffee charcoal polyester staple fiber and viscose staple fiber is 100wt %. The section of the modified coffee charcoal polyester staple fiber is a hollow structure.
[0049] The viscose staple fiber has a length of 38mm, a denier of 1.33dtex, a breaking strength of 2.81cN / dtex, a breaking elongation of 19.1%, and an initial modulus of 49.29cN / dtex.
[0050] The preparation method of the described hygroscopic and heating yarn is:
[0051] 1. Preparation of modified coffee charcoal polyester staple fiber:
[0052] (1) Preparation of coffee charcoal
[0053] Use discarded coffee grounds, mix it with 50% mass concentration of phosphoric acid in a mass ratio of 2:1, soak at 100°C for 2 hours, take the impregnated coffee charcoal, and first dry it at 150°C for 3 hours. Then raise the t...
Embodiment 2
[0091] A multi-hygroscopic and heat-generating yarn, which is composed of 30% modified coffee charcoal polyester staple fiber and 70% viscose staple fiber in mass fraction, wherein the total amount of modified coffee charcoal polyester staple fiber and viscose staple fiber is 100% by weight. The section of the modified coffee charcoal polyester staple fiber is a hollow structure.
[0092] The viscose staple fiber has a length of 38mm, a denier of 1.33dtex, a breaking strength of 2.81cN / dtex, a breaking elongation of 19.1%, and an initial modulus of 49.29cN / dtex.
[0093] The preparation method of the described hygroscopic and heating yarn is:
[0094] 1. Preparation of modified coffee charcoal polyester staple fiber:
[0095] (1) Preparation of coffee charcoal
[0096] Use discarded coffee grounds, mix it with 50% mass concentration of phosphoric acid in a mass ratio of 2:1, soak at 100°C for 2 hours, take the impregnated coffee charcoal, and first dry it at 180°C for 1 hou...
Embodiment 3
[0133] A hygroscopic and heating yarn, composed of 40% modified coffee charcoal polyester staple fiber and 60% viscose staple fiber by mass fraction, wherein the total amount of modified coffee charcoal polyester staple fiber and viscose staple fiber is 100wt %. The section of the modified coffee charcoal polyester staple fiber is a hollow structure.
[0134] The viscose staple fiber has a length of 38mm, a denier of 1.33dtex, a breaking strength of 2.81cN / dtex, a breaking elongation of 19.1%, and an initial modulus of 49.29cN / dtex.
[0135] The preparation method of the described hygroscopic and heating yarn is:
[0136] 1. Preparation of modified coffee charcoal polyester staple fiber:
[0137] (1) Preparation of coffee charcoal
[0138] Use discarded coffee grounds, mix it with 50% mass concentration of phosphoric acid at a mass ratio of 2:1, soak at 100°C for 2 hours, take the impregnated coffee charcoal, and first dry it at 170°C for 2 hours, Then raise the temperatur...
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