Manufacturing method for disposable sanitary base material and production line thereof

A manufacturing method, a one-time technology, applied in the direction of chemical instruments and methods, layered products, laminating devices, etc., can solve the problem of increasing intermediate transportation links and transportation costs, hidden dangers of skin safety in the amount of glue used, and a large amount of glue used for bonding and other problems, to achieve the effect of reducing production steps and links, reducing transportation volume, and reducing the amount of glue used

Inactive Publication Date: 2012-07-11
SHANDONG JUNFU NONWOVEN MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Current diapers are divided into surface layer, covering layer (the function of covering layer is to enclose superabsorbent resin or fluff pulp), absorbent layer (superabsorbent resin or fluff pulp layer), back layer, etc. according to the structure. The surface layer and the covering layer are made of woven fabric, and the covering layer covers the absorbent layer. The back layer is generally composed of non-woven fabric, or PE film and non-woven fabric composite, or PE breathable film; surface layer, covering layer The non-woven fabric used in the layer and back layer is produced by the non-woven fabric factory, and then goes through winding, unwinding, slitting, rewinding, packaging, transportation and other links, and then returns to the diaper production plant. Rolling and other steps, the coating layer must be coated with super absorbent resin or fluff pulp before it can be used on the diaper production line. Not only is the process cumbersome, but it also wastes energy, wastes packaging materials, and increases intermediate transportation links and transportation costs; used for bonding during production The amount of glue is also very large, which does not conform to the concept of low carbon and environmental protection, and the excessive amount of glue used will also cause safety hazards to the skin

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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  • Manufacturing method for disposable sanitary base material and production line thereof
  • Manufacturing method for disposable sanitary base material and production line thereof
  • Manufacturing method for disposable sanitary base material and production line thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] like figure 2 As shown, the surface layer 1 is realized by the first carding equipment 7 using the carding process, which is composed of short fiber hydrophilic treatment→drying→short fiber feeding and weighing→mixing and opening→multi-compartment blending→cotton transportation →air fiber separation→cotton box→opening→cotton feeding→repeated opening→repeated feeding→feeding→carding→laying to form surface layer 1 with fiber fineness between 1.5-4 denier. The first cladding layer (guiding layer) 21 is realized by the second carding equipment 8 carding process, but the fiber fineness will be smaller than the surface layer 1, between 0.1-2 deniers, the first cladding layer (The diversion layer) 21 is superimposed on the surface layer 1, and is transported to the paving equipment 9 by the mesh belt 12, and the superabsorbent resin or fluff pulp is evenly spread on the superimposed surface layer 1 and the first cladding layer 2, The absorbent layer 3 is formed; the paving e...

Embodiment 2

[0047] like image 3As shown, the difference between this embodiment and the first embodiment is mainly that: the fiber web of the first coating layer 21 is realized by the second spinning equipment 16 using the spinning process, and the spinning process includes: high The raw material of polymer chips and the hydrophilic masterbatch are transported together → quantitative mixing and feeding → screw extruder melt extrusion → melt filtration → metering pump quantitative metering → melt distribution → spinneret spinning → fiber quenching → fiber airflow Drafting → fiber splitting and laying. In this example, the second spinning device 16 is a spunbond spinning device.

Embodiment 3

[0049] like Figure 4 As shown, the surface layer 1 is realized by the first spinning device 15 using the spinning process. The spinning process includes: co-transporting the high polymer chip raw material and the hydrophilic masterbatch → quantitative mixing and feeding → screw Extruder melt extrusion → melt filtration → quantitative metering by metering pump → melt distribution → spinneret spinning → fiber quenching → fiber airflow drafting → fiber splitting and laying to form surface layer 1, and the fiber fineness is in Between 1-4 denier. The fiber web of the first cladding layer 21 is realized by the second spinning device 16 by the spinning process, but the fiber fineness is smaller than that of the surface layer 1 fiber web, which is between 0.1-2 denier. The covering layer 21 is superimposed on the surface layer 1 and transported to the spreading equipment 9 through the mesh belt 12 . With the movement of the mesh belt 12 , a second coating layer 22 is laid on the a...

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 manufacturing method for a disposable sanitary base material and a production line for the manufacturing method. In the manufacturing method, a surface layer is formed on a net strip through net forming by first net-forming equipment; a first wrapping layer is formed on the surface layer through a net formed by second net-forming equipment; paving equipment is used for paving a water-absorbing material on the first wrapping layer to form an absorbing layer; a second wrapping layer is formed on the absorbing layer through a net formed by third net-forming equipment; and curing equipment is used for curing all the stacked layers to form the disposable sanitary base material. For the manufacturing method, on one production line, the surface layer, the wrapping layers and the absorbing layer are subjected to on-line production, and are stacked and cured together, so that the disposable sanitary base material is formed, the production steps and the production links for upstream suppliers are greatly reduced, for example, production links such as winding, unwinding, slitting and packaging for the surface layer and the wrapping layers are reduced, the rejection rate is reduced, the using amount of glue is reduced, the transportation amount is reduced, so that the cost is greatly reduced, and the function of low carbon and environmental production is achieved; and with the reduction of the using amount of glue, the product is more friendly and safer to the human bodies.

Description

【Technical field】 [0001] The invention relates to the field of non-woven fabrics, in particular to a disposable sanitary base material. 【Background technique】 [0002] Diapers are mainly used for infants, patients who cannot take care of themselves and the elderly. The emergence of diapers has greatly improved the lives of infants, patients who cannot take care of themselves and the elderly, and also facilitated the work of nursing staff and reduced the workload of nursing staff. [0003] Current diapers are divided into surface layer, covering layer (the function of covering layer is to enclose superabsorbent resin or fluff pulp), absorbent layer (superabsorbent resin or fluff pulp layer), back layer, etc. according to the structure. The surface layer and the covering layer are made of woven fabric, and the covering layer covers the absorbent layer. The back layer is generally composed of non-woven fabric, or PE film and non-woven fabric composite, or PE breathable film; s...

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 Applications(China)
IPC IPC(8): B32B27/02B32B37/20
Inventor 陈光林
Owner SHANDONG JUNFU NONWOVEN MATERIALS
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