Thickened non-woven elastic bandage and preparation method thereof
An elastic bandage, non-woven technology, applied in bandages, chemical instruments and methods, medical science and other directions, can solve the problems of thickening and poor air permeability of the substrate, and achieve the effect of good air permeability, soft and thick feel, and excellent elasticity.
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[0018] The preparation method of the thickened non-woven elastic bandage, first, the upper two layers of non-woven fabrics are compounded by dispensing with medical pressure-sensitive adhesive to form the upper double-layer non-woven fabric, and the lower two layers of non-woven fabrics are passed through medical pressure-sensitive adhesive. Dot coating and compounding form the lower double-layer non-woven fabric;
[0019] The upper double-layer non-woven fabric and the lower double-layer non-woven fabric are compounded by dispensing with medical pressure-sensitive adhesive, and there is a layer of spandex yarn in the middle. The spandex yarn is 60-90D, and the warp density is 80-95 strands / 10cm. Stretch to 1.5 to 1.7 times the length of the state glue coating compound;
[0020] Through the wave head of the ultrasonic sewing machine, the cloth surface will vibrate on the pattern roller, and the cloth surface will form uniform pressure points.
Embodiment 1
[0022] First, the polypropylene fiber non-woven fabric (15g / m 2 ) is processed into a composite double-layer non-woven fabric using medical pressure-sensitive adhesive dispensing technology;
[0023] The two-layer composite double-layer non-woven fabric is compounded again by medical pressure-sensitive adhesive dispensing technology, in which a layer of spandex yarn is sandwiched in the middle, the spandex yarn is 80D, the warp density is 80 strands / 10cm, and the stretch is 1.7 times the length Glue compound;
[0024] Through the wave head of the ultrasonic sewing machine, the cloth surface will vibrate on the pattern roller to form obvious uniform points on the cloth surface.
Embodiment 2
[0026] First, the polypropylene fiber non-woven fabric (12g / m 2 ) is processed into a composite double-layer non-woven fabric using medical pressure-sensitive adhesive dispensing technology;
[0027] The two-layer composite double-layer non-woven fabric is compounded again by medical pressure-sensitive adhesive dispensing technology, in which a layer of spandex yarn is sandwiched in the middle, the spandex yarn is 90D, the warp density is 95 strands / 10cm, and the stretch is 1.5 times the length Glue compound;
[0028] Through the wave head of the ultrasonic sewing machine, the cloth surface will vibrate on the pattern roller to form obvious uniform points on the cloth surface.
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