Inclined net forming online spun-bonded spunlace composite non-woven fabric and preparation method thereof

Abstract

The invention discloses an inclined net forming online spun-bonded spunlace composite non-woven fabric. The inclined net forming online spun-bonded spunlace composite non-woven fabric comprises a first online wet process inclined net forming fiber layer and a second online spun-bonded net forming fiber layer, and is formed by laminating and spun-lacing the first fiber layer and the second fiber layer. According to the non-woven fabric, the friction adsorption force is high, the liquid absorption property is good, the decontamination capability is strong, the product can be prepared only through on-line spun-bonding in the production process, the process is simple and convenient, the energy consumption is greatly saved, the material loss is reduced, the production cost is reduced, and the product characteristics can be customized according to the terminal use requirements due to the controllability of the spun-bonding consolidation.

Description

technical field [0001] The invention relates to the technical field of spunlace nonwoven fabrics, in particular to a spunlace composite nonwoven fabric formed by inclined net forming and online spunbonding and a preparation method thereof. Background technique [0002] The existing PP spunbonded composite wood pulp spunlace nonwoven fabric is widely used in fields such as industrial wiping materials, kitchen wiping materials, and wet wipes due to its good wiping strength and good liquid absorption and decontamination ability. There are two main production processes, both of which are made by off-line secondary molding. [0003] One process is to prepare PP spunbond cloth and wood pulp paper offline respectively, and then unwind them through the unwinding machine respectively. After the two layers of materials are laminated, they will be entangled and reinforced by the hydroentanglement process to form a PP wood pulp paper. thorn cloth. [0004] Another process is to first ...

AI Technical Summary

Problems solved by technology

[0007] The disadvantage of the above schemes is that they all use off-line spunbond cloth (or PP hydrophobic layer) unwinding equipment to unwind and transport to the wet-laid web, then laminate with the wet-laid fiber layer, and combine them into one through hydroentanglement

[0009] The disadvantage of the above scheme is that the polypropylene spunbond fiber web is formed online by the online web forming device of spunbond fiber, and the polypropylene spunbond fiber web is not consolidated, and is directly stacked up and down with the fiber layer formed by the web forming device at the upper end After that, they enter the subsequent multi-stage spunlace device together for spunlace compounding

However, due to its moisture regain rate of 0%, polypropylene fibers basically do not absorb water, so they cannot directly absorb the energy of water needles for entanglement. It is fluffy and does not have the strength to use, so it needs to be reinforced after finishing processes such as leveling and calendering, turntable spray coating finishing, etc.

However, flat calendering is basically realized by calendering and flattening the entire surface, which not only cannot achieve point bonding, but reduces the thickness of the product, and the product is relatively hardened

However, coating finishing is not environmentally friendly. This method not only fails to obtain the high decontamination capacity required for the best wiping material, but also wastes spunlace energy consumption.

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