Preparation method of single-sided water-repellent spunlace pure cotton non-woven fabric
A non-woven fabric and pure cotton technology, which is applied in the field of preparation of spunlace pure cotton non-woven fabrics, can solve the problems of decreased air permeability of the material, the pure cotton surface layer is not particularly extensive, and is not suitable for low areal density fabrics, etc. Effects of hydrophobicity and stability
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Embodiment 1
[0020] 0.3g of polydimethylsiloxane (PDMS) was subjected to air plasma pretreatment, and then the PDMS after plasma treatment was dispersed in 100mL of deionized water, the stirring temperature was 25°C, and the stirring speed was 600r / min, and then At a temperature of 30°C, ultrasonically treat for 60 minutes to obtain an evenly dispersed oil-in-water emulsion finishing agent containing 0.3% PDMS; The particle size of the atomized microbeads is 10 μm; then the spunlace pure cotton nonwoven fabric is placed 8 cm above the atomized sheet to keep the atomized microbeads of the oil-in-water emulsion finishing agent containing PDMS uniform and continuous Spray on the lower surface of the non-woven fabric, the atomization time is 20s, take out the treated non-woven fabric, and immediately put it in an environment of 150°C and bake it for 10 minutes to obtain a single-sided water-repellent spunlaced pure cotton non-woven fabric.
Embodiment 2
[0022] 0.5g polydimethylsiloxane (PDMS) was subjected to air plasma pretreatment, then the PDMS after plasma treatment was dispersed in 100mL deionized water, the stirring temperature was 27°C, and the stirring speed was 800r / min, and then Ultrasonic treatment at 40°C for 60 minutes to obtain a uniformly dispersed oil-in-water emulsion finishing agent containing 0.5% PDMS; place an ultrasonic atomizer in the oil-in-water emulsion finishing agent containing 0.5% PDMS for ultrasonic atomization to obtain The particle size of the atomized microbeads is 15 μm; then the spunlace pure cotton non-woven fabric is placed 9 cm above the atomized sheet, and the atomized microbeads of the oil-in-water emulsion finishing agent containing PDMS are sprayed evenly and continuously on the For the lower surface of the nonwoven fabric, the atomization time is 20s. The treated nonwoven fabric is taken out and baked at 120°C for 20 minutes to obtain a single-sided water-repellent spunlace pure cott...
Embodiment 3
[0024] 0.6g of polydimethylsiloxane (PDMS) was subjected to air plasma pretreatment, and then the PDMS after plasma treatment was dispersed in 100mL of deionized water, the stirring temperature was 27°C, and the stirring speed was 900r / min, and then Ultrasonic treatment at 30°C for 60 minutes to obtain a uniformly dispersed oil-in-water emulsion finishing agent containing 0.6% PDMS; place an ultrasonic atomizer in the oil-in-water emulsion finishing agent containing 0.6% PDMS for ultrasonic atomization to obtain The particle size of the atomized microbeads is 14 μm; then the spunlace pure cotton non-woven fabric is placed 9 cm above the atomized sheet, and the atomized microbeads of the oil-in-water emulsion finishing agent containing PDMS are sprayed evenly and continuously on the For the lower surface of the nonwoven fabric, the atomization time is 10s. The treated nonwoven fabric is taken out and baked at 150°C for 10 minutes to obtain a single-sided water-repellent spunlace...
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