Hot-melt reinforced flushable non-woven material and production method
A reinforced, hot-melt technology, applied in the direction of textiles, papermaking, non-woven fabrics, etc., can solve the problems of over-melting aging, low melting point of PE, high melting point of PP, etc., to reduce spunlace pressure, high entanglement strength, increase The effect of the bonding surface
Active Publication Date: 2018-01-09
HANGZHOU NBOND NONWOVENS
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Problems solved by technology
[0002] Finland's Ahlstrom manufactures dispersible non-woven materials. In terms of the formulation of non-woven materials (1) PP / PE / : a mixture of PP or PE; structure: PP-coated core fiber on the outer layer of PE , PP has a high melting point and PE has a low melting point; its disadvantages: poor water absorption
(2) PET / COPET: COPET uses modified polyester fiber and COPET is coated on the core fiber of the PET outer layer. The advantage of water absorption is stronger than (1). However, due to the high melting point of PET and the low melting point of COPET, the two cannot Adaptation, when the wet non-woven material is dried in the drying tunnel, when PET reaches the melting point, COPET will undergo over-melt aging, resulting in a decrease in the strength and poor flexibility of the non-woven material
Method used
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Embodiment 1
[0011] Embodiment 1: with reference to attached figure 1 and 2 . A hot-melt reinforced flushable non-woven material, weight percentage: the ratio of ES fiber or PET / COPET blended fiber is between 1% --- 5% and includes the ratio of end value and regenerated cellulose fiber Between 1%---50% and including the end value, for wood pulp between 98%---45% and including the end value. ES fiber refers to a bicomponent fiber and two fibers with different melting points are spun through composite spinning. The skin layer of the sheath-core bicomponent fiber has a low melting point and the core layer has a high melting point. The regenerated cellulose fiber refers to various regenerated cellulose fibers such as viscose fiber, tencel, and bamboo fiber.
Embodiment 2
[0012] Example 2: On the basis of Example 1, ES fiber or PET / COPET blended fiber is 5%, regenerated cellulose fiber is 50%, and wood pulp is 45%.
Embodiment 3
[0013] Example 3: On the basis of Example 1, 1% of ES fiber or PET / COPET blended fiber, 1% of regenerated cellulose fiber, and 98% of wood pulp.
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The invention relates to a hot-melt reinforced flushable non-woven material with a degradation rate of over 95% and high strength and a manufacturing method thereof. The proportion of ES fibers or PET / COPET blended fibers is Between 1%‑‑‑5% and including the end value, the proportion of regenerated cellulose fiber between 1%‑‑‑50% and including the end value, wood pulp between 98%‑‑‑45% and including end value. Advantages: First, after adding hot-melt PE or PET / COPET, it can not only meet the use strength requirements of recycled non-woven materials, but also reduce the spunlace pressure required for entanglement, so that most of the fibers can maintain a low entanglement state , so that the degradability of the product has reached more than 95%. Second, the surface of the regenerated cellulose fiber is napped, which not only increases the bonding surface of the recycled non-woven material surface, but also solves the problem of less entanglement and high entanglement strength. purpose, and can quickly disperse under the action of water flushing.
Description
technical field [0001] The invention relates to a hot-melt reinforced flushable non-woven material with a degradation rate of over 95% and high strength and a production method thereof, belonging to the field of non-woven material manufacturing. Background technique [0002] Finland's Ahlstrom manufactures dispersible non-woven materials. In terms of the formulation of non-woven materials (1) PP / PE / : a mixture of PP or PE; structure: PP-coated core fiber on the outer layer of PE , PP has a high melting point and PE has a low melting point; its disadvantages: poor water absorption. (2) PET / COPET: COPET uses modified polyester fiber and COPET is coated on the core fiber of the PET outer layer. The advantage of water absorption is stronger than (1). However, due to the high melting point of PET and the low melting point of COPET, the two cannot Adaptation, when the wet non-woven material is dried in the drying tunnel, when PET reaches the melting point, COPET will undergo over...
Claims
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IPC IPC(8): D04H1/541
Inventor 俞一瑛
Owner HANGZHOU NBOND NONWOVENS