Dyeing and finishing of modal fabrics
A modal fabric and fabric technology, which is applied in the field of dyeing and finishing of modal fabrics, can solve problems such as difficulties and difficult surface finishing effects.
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Embodiment 1
[0024] With the 2 by 1 twill weave method, the yarn with the count of 1 / 20s Ne of 1.3 dt modal fiber (HWM modal fiber ex Lenzing AG) containing 100% high wet modulus is used to make a unit weight of 180gsm (grams / square meters) of modal fiber woven fabrics.
[0025] The open-width fabric was washed at 90°C with an aqueous flushing solution containing non-ionic detergent and sodium carbonate, and then dried on a stenter at 100°C.
[0026]Half of the scoured fabric was used as a control, and the other half was pad-dipped with an aqueous solution of 14 g / L magnesium chloride hexahydrate and 1.0 g / L wetting agent Kieralon JET (Kieralon is a trademark of BASF AG). The rate is 80%. The impregnated fabric was unfolded, dried at 110°C, and then heat-treated in air at 190°C for 50 seconds. The treated and control fabrics were dyed and finished in the same way. Dyeing was done in a Gaston County Futura jet dyeing machine for 6 hours with an aqueous dye solution containing:
[0027]...
Embodiment 2
[0033] Modal with a unit weight of 180gsm is made with a 1 / 20s Ne yarn count of 1.3 dt modal fiber (HWM modal fiber ex Lenzing AG) containing 100% high wet modulus in a 2 by 1 twill weave method Woven fabric.
[0034] The open-width fabric was washed at 90°C with an aqueous flushing solution containing non-ionic detergent and sodium carbonate, and then dried on a stenter at 100°C.
[0035] Then, a citric acid aqueous solution with a concentration of 4.0 g / L was uniformly extruded into the desized fabric with a padding machine at a liquid absorption rate of 75%, and the desized fabric was uniformly impregnated. The impregnated fabric was dried and heat treated on a tenter at 160°C for 5.0 minutes in air. After rinsing thoroughly with water and drying, the treated fabric can be dyed.
[0036] Dyeing was performed in a Thies Ecosoft Plus jet dyer. In addition to the treated fabric, an untreated but desized control fabric of the same specification was dyed and finished as descr...
Embodiment 3
[0043] A double-sided interlock modal knitted fabric is made from a yarn count of 1 / 20s Ne. The yarn contains a 70:30 weight ratio of polynosic fiber and polyester fiber, wherein the polynosic fiber is 1.7 decitex and 38 mm short fiber (Junalon fiber ex Fujibo), and the polyester fiber is 1.5 Dtex and 38mm staple fiber (Trevira type 140 fiber ex Hoechst AG).
[0044] The fabric was spread open and divided into two parts, one as an untreated control and the other part was pad impregnated with an aqueous solution containing 14 g / L magnesium chloride and 1.0% Kieralon JET. The fiber pick-up was 80%. The impregnated fabric was dried on a stenter at 110°C in air, and then heat-treated at 190°C in air for 45 seconds.
[0045] The treated and control fabrics were rinsed, dyed, softened and dried separately. Rinse with a non-ionic detergent and an aqueous solution of sodium carbonate at 90°C for 30 minutes. The fabric was then rinsed with water and dyed in a jet dyeing machine for ...
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