Method for preparing sound-absorbing body with sound-absorbing function
A functional, polyester staple fiber technology, applied in the field of sound-absorbing body preparation, can solve the problems of poor environmental decoration, cleaning, complex production process of sound-absorbing body, poor low-frequency sound-absorbing effect, etc., to achieve good sound-absorbing effect, easy recycling, easy to install effects
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Embodiment 1
[0028] A method for preparing a sound-absorbing body with adsorption function, comprising the steps of:
[0029] (a) Add the first polyester staple fiber and the second polyester staple fiber to the raw material feeding device, the fibers are mixed evenly through the feeding device, and the first polyester staple fiber accounts for 50% of the total fiber mass;
[0030] (b) The mixed fibers are pre-opened first to loosen the agglomerated fibers; after the pre-opening is completed, fine-opening is performed to make the fibers evenly mixed together; the opened fibers pass through the compression device , into the carding equipment, the fibers form a continuous fiber web after the carding equipment;
[0031] (c) The fiber web is obtained by needling and rolling to obtain fiber cotton;
[0032] The acupuncture density of the acupuncture is 1.0 needles / cm 2 ; The rolling pressure during rolling is 0.8Mpa, the rolling speed is 1.26m / min, and the roller spacing is 25mm;
[0033] (d...
Embodiment 2
[0041] A method for preparing a sound-absorbing body with adsorption function, comprising the steps of:
[0042] (a) Add the first polyester staple fiber and the second polyester staple fiber to the raw material feeding device, the fibers are mixed evenly through the feeding device, and the first polyester staple fiber accounts for 60% of the total fiber mass;
[0043] (b) The mixed fibers are pre-opened first to loosen the agglomerated fibers; after the pre-opening is completed, fine-opening is performed to make the fibers evenly mixed together; the opened fibers pass through the compression device , into the carding equipment, the fibers form a continuous fiber web after the carding equipment;
[0044] (c) The fiber web is obtained by needling and rolling to obtain fiber cotton;
[0045] The acupuncture density of the acupuncture is 1.2 needles / cm 2 ; The rolling pressure during rolling is 0.9Mpa, the rolling speed is 1.20m / min, and the roller spacing is 30mm;
[0046] (d...
Embodiment 3
[0054] A method for preparing a sound-absorbing body with adsorption function, comprising the steps of:
[0055] (a) Add the first polyester staple fiber and the second polyester staple fiber to the raw material feeding device, the fibers are mixed evenly through the feeding device, and the first polyester staple fiber accounts for 70% of the total fiber mass;
[0056](b) The mixed fibers are pre-opened first to loosen the agglomerated fibers; after the pre-opening is completed, fine-opening is performed to make the fibers evenly mixed together; the opened fibers pass through the compression device , into the carding equipment, the fibers form a continuous fiber web after the carding equipment;
[0057] (c) The fiber web is obtained by needling and rolling to obtain fiber cotton;
[0058] The acupuncture density of the acupuncture is 1.3 needles / cm 2 ; The rolling pressure during rolling is 1.0Mpa, the rolling speed is 1.26m / min, and the roller spacing is 50mm;
[0059] (d)...
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