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Wet-laid spunlace non-woven fabric production equipment and its process

A technology of spunlace non-woven fabrics and production equipment, which is applied in the direction of non-woven fabrics, textiles, and papermaking. It can solve the problems of slow product development, low market share, and inability to withstand the impact of high-pressure water, so as to achieve easy production and improve production. Ability, the effect of broadening the weight range

Active Publication Date: 2015-07-29
HANGZHOU CHUANGLAN NONWOVEN CLOTH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages: due to the use of fiber mesh
Disadvantages: due to wood
[0015] The product cannot withstand the impact of high-pressure water
[0016] Since the above two methods have their own advantages and disadvantages, the non-woven fabric products reinforced by wet-laid spunlace are restricted by the production process and can only play a role in certain fields at present. The product development is very slow and the market share is relatively low.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Wet-laid spunlace non-woven fabric production equipment and its process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Wood pulp fibers with a fiber length of 2 mm and viscose fibers with a fiber length of 5 mm are mixed with water to form a slurry-water mixture with a concentration of 1%, and water is added to form a slurry-water mixture with a concentration of 0.1%. The dehydration device 2 forms a 20g / ㎡ fiber layer 4 on the transmission forming wire 3, and uses the transmission forming wire 3 to bring the fiber layer between the transmission composite wires 9, and passes through a first spunlace device 6 with a high-pressure water needle with a pressure of 3MPa Impact the upper fiber layer of the transmission forming net 3, and use -0.1Mpa vacuum suction through the first vacuum suction box 5 to transfer the fiber layer to the transmission composite net 9, rebound the water flow through the transmission composite net, impact the fiber layer, and make the fibers entangled , the entangled fiber layer, and then through three second spunlace devices 8, impact the fiber layer on the transm...

Embodiment 2

[0030] Wood pulp fibers with a fiber length of 3 mm and polyester fibers with a fiber length of 15 mm are mixed with water to form a slurry-water mixture with a concentration of 3%, and water is added to form a slurry-water mixture with a concentration of 0.03%. 2. Dehydration Form a 100g / ㎡ fiber layer 4 on the transmission forming wire 3, use the transmission forming wire 3 to bring the fiber layer between the transmission composite wires 9, pass through the three first spunlace devices 6 and impact with a high-pressure water needle with a pressure of 5 MPa The fiber layer on the transmission forming net 3 is sucked by -0.2Mpa vacuum through the first vacuum suction box 5, so that the fiber layer is transferred to the transmission composite net 9, and the water flow rebounds through the transmission composite net, impacts the fiber layer, and entangles the fibers. The entangled fiber layer is then impacted by 8 second spunlace devices 8 with a high-pressure water needle of 5 M...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a production device and technology for wet method spunlace nonwoven cloth. The production device is sequentially and horizontally provided with first vacuum water suction boxes and second vacuum water suction boxes. A transmission composite web is arranged through the upper surfaces of the first vacuum water suction boxes and the upper surfaces of the second vacuum water suction boxes. First spunlace devices and second spunlace devices are arranged at the positions corresponding to the first vacuum water suction boxes and the second vacuum water suction boxes respectively and arranged above the transmission composite net. A wet method forming device is arranged above the first spunlace devices and the second spunlace devices. A wood pulp groove is formed above the wet method forming device, and a transmission forming web is arranged through the upper surface of the wet method forming device and the lower surfaces of the spunlace devices. The problems that after wet method web forming, intensity of fibers is low, the gram weight is low and wet paper sheets are difficult to transfer are solved, and the problems that the wet fiber webs are directly impacted through high-pressure squirts, so that fiber losses are large can be also solved. The gram weight range of a product is enlarged, production capacity is improved, the wet method spunlace nonwoven cloth becomes very easy to produce, and the gram weight of the product can be reduced to 20g / m<2>.

Description

technical field [0001] The invention belongs to the technical field of non-woven fabric production, and in particular relates to a wet-process spunlace non-woven fabric production device and a process thereof. Background technique [0002] The existing wet spunlace technology cannot be produced, and the following two production techniques are basically used: [0003] 1) Wet-laid web and fiber web composite spunlace processing technology: wood pulp fiber wet-laid and fiber web composite, use high-pressure water needles to entangle the substrate, and make wood pulp composite non-woven fabric after drying. [0004] 2) Spunlace reinforcement process after wet-laid web: After mixing wood pulp fibers with long-length chemical fibers, after wet-laid web, use high-pressure water needles to entangle the fibers of different lengths, and after drying Made into non-woven fabric. The above two production processes each have their advantages and disadvantages. [0005] The first method...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H1/4382D04H1/492D04H1/72
Inventor 何忠
Owner HANGZHOU CHUANGLAN NONWOVEN CLOTH