Coloring agent for textile fabric
A technology of textile fabrics and dyeing agents, applied in the field of textile fabrics, can solve the problems of not bright color and low cost, and achieve the effect of bright color, good colorability, and not easy to fade
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Embodiment 1
[0019] This embodiment provides a dyeing agent for textile fabrics, which comprises the following components in parts by weight: 1 part of polypropylene glycol, 8 parts of aloe extract, 1 part of dibutyltin dilaurate, 2 parts of alum, hydroxypropyl 7 parts of methyl cellulose, 1 part of polyvinylpyrrolidone, 10 parts of ethyl acetate, 1 part of blocked polyisocyanate.
[0020] Wherein, the aloe extract is prepared by the following preparation method:
[0021] (1) Vacuum freeze-drying the aloe leaves, then crushing and sieving the dried aloe leaves to obtain aloe dry powder.
[0022] Wherein, the drying temperature of the vacuum freeze-drying treatment is -50° C., the drying time is 10 hours, and the sieve used for sieving is 30 mesh.
[0023] (2) The above-mentioned aloe vera leaf dry powder is packed into a supercritical extraction kettle, and carbon dioxide is introduced, and ethyl acetate is used as an entrainer, and supercritical carbon dioxide is utilized to extract and ...
Embodiment 2
[0026] This embodiment provides a dyeing agent for textile fabrics, which comprises the following components in parts by weight: 2 parts of polypropylene glycol, 12 parts of aloe extract, 3 parts of dibutyltin dilaurate, 3 parts of alum, hydroxypropyl 8 parts of methyl cellulose, 2 parts of polyvinylpyrrolidone, 12 parts of ethyl acetate, 2 parts of blocked polyisocyanate.
[0027] Wherein, the aloe extract is prepared by the following preparation method:
[0028] (1) Vacuum freeze-drying the aloe leaves, then crushing and sieving the dried aloe leaves to obtain aloe dry powder.
[0029] Wherein, the drying temperature of the vacuum freeze-drying treatment is -40° C., the drying time is 15 hours, and the sieve used for sieving is 40 mesh.
[0030] (2) above-mentioned aloe vera leaf dry powder is packed in the supercritical extraction kettle, pass into carbon dioxide, take ethanol as entrainer, utilize supercritical carbon dioxide to carry out extraction and separation, extrac...
Embodiment 3
[0033] This embodiment provides a dyeing agent for textile fabrics, which comprises the following components in parts by weight: 3 parts of polypropylene glycol, 15 parts of aloe extract, 5 parts of dibutyltin dilaurate, 5 parts of alum, hydroxypropyl 10 parts of methyl cellulose, 3 parts of polyvinylpyrrolidone, 15 parts of ethyl acetate, 3 parts of blocked polyisocyanate.
[0034] Wherein, the aloe extract is prepared by the following preparation method:
[0035] (1) Vacuum freeze-drying the aloe leaves, then crushing and sieving the dried aloe leaves to obtain aloe dry powder.
[0036] Wherein, the drying temperature of the vacuum freeze-drying treatment is -50° C., the drying time is 20 hours, and the sieve used for sieving is 50 mesh.
[0037] (2) above-mentioned aloe vera leaf dry powder is packed in the supercritical extraction kettle, pass into carbon dioxide, take ethanol as entrainer, utilize supercritical carbon dioxide to carry out extraction and separation, extra...
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