Manufacturing method for underpants
A technology of underwear and roving, applied in underwear, improved handle fiber, biochemical fiber treatment, etc., can solve the problems of vulvar skin diseases that cannot be cured for a long time, and achieve the effects of heat conduction, fast moisture absorption and perspiration, enhanced vitality, and good air permeability
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Embodiment 1
[0060] A kind of preparation method of underwear of the present invention, comprises the steps:
[0061](1) Prepare the underpants body; the preparation method of the underpants body:
[0062] Step1: Blend the prepared cotton-linen blended fiber and graphene antibacterial fiber in proportion, ply and twist to make roving, after mixing and matching, spin into raw roving and then boil and bleach the roving;
[0063] step2: Semi-degumming of roving;
[0064] step3: biological enzyme pretreatment before dyeing;
[0065] Step4: Softening and drying: Soften and dry the blended yarn after biological enzyme treatment to obtain the dry product of cotton and linen elastic fiber blended yarn;
[0066] Step5: After dyeing and post-processing, spun yarn is carried out; the spun yarn is subjected to radio frequency drying, yarn picking, winding, packing, and humidifying yarn for knitting to obtain the underwear body;
[0067] The mass ratio of the cotton-linen blended fiber to the graphe...
Embodiment 2
[0112] The difference between embodiment 2 and embodiment 1 is: a kind of preparation method of underwear of the present invention, comprises the following steps:
[0113] In step (1), the underpants body is prepared; the preparation method of the underpants body:
[0114] Described graphene antibacterial fiber is made up of following components by mass percentage:
[0115] Graphene filaments 12%,
[0116] 70% stretch yarn,
[0117] The balance is cotton fiber filaments.
[0118] The preparation steps of described cotton-linen blended fiber are:
[0119] The cotton and linen blended fibers are mixed in proportion and twisted into a blended yarn; wherein, the mass ratio of the hemp fiber filaments to the cotton fiber filaments is 3:1.
[0120] The preparation method of hemp fiber silk: select the hemp husk, then unpack the hemp husk and loosen the cotton, continue to remove impurities through machine falling and wind blowing, and then proceed to the formal production proces...
Embodiment 3
[0144] The difference between embodiment 3 and embodiment 1 is: a kind of preparation method of underwear of the present invention, comprises the following steps:
[0145] In step (1), the graphene antibacterial fiber consists of the following components by mass percentage:
[0146] Graphene filaments 8%,
[0147] 60% stretch yarn,
[0148] The balance is cotton fiber filaments.
[0149] The preparation steps of described cotton-linen blended fiber are:
[0150] The cotton and linen blended fibers are mixed in proportion and twisted into a blended yarn; wherein, the mass ratio of the hemp fiber filaments to the cotton fiber filaments is 4:1.
[0151] The preparation method of hemp fiber silk: select the hemp husk, then unpack the hemp husk and loosen the cotton, continue to remove impurities through machine falling and wind blowing, and then proceed to the formal production process of hemp fiber silk: biological degumming, 4 days→steaming, 24 hours→dehydration→drying→drying→...
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