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Manufacturing method of non-woven fabric material for paper diapers

Inactive Publication Date: 2020-10-27
安徽舒源妇幼用品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Diapers are a kind of disposable diapers, which are made of non-woven fabrics, including special use for children and adults. In recent years, the amount of diapers has increased extremely. However, with the increase in market demand for diapers At the same time, the requirements for the quality and performance of diapers are constantly improving. However, the core layer of existing diapers absorbs too much urine. Therefore, how to improve the water absorption performance of non-woven fabrics can further improve the urine absorption saturation of diapers

Method used

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  • Manufacturing method of non-woven fabric material for paper diapers
  • Manufacturing method of non-woven fabric material for paper diapers

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preparation example Construction

[0031] A preparation method of a non-woven fabric material for paper diapers, comprising the following steps:

[0032] (1) Add methyl cellulose to the reaction kettle, then add deionized water, heat to 50-55°C, keep stirring for 30 minutes, then add maleic anhydride and graphene, continue stirring for 10-15 minutes, then add Catalyst, stirred and reacted for 2 hours, then washed with acetone and clear water successively, and dried to obtain the intermediate;

[0033] Methylcellulose:

[0034] Appearance off-white fibrous to rice powder;

[0035] Gel temperature (2% aqueous solution) 50~55℃;

[0036] Methoxyl content 26%~33%;

[0037] Water insoluble matter ≤2.0%;

[0038] Degree of substitution (DS) 1.3~2.0;

[0039] Moisture ≤5.0%;

[0040] Viscosity (20℃, 2% aqueous solution) 15~4000mPa·s;

[0041] maleic anhydride:

[0042] Chemical formula C 4 h 2 o 3

[0043] Molar mass 98.06 g / mol;

[0044] Appearance White crystals with a sour taste;

[0045] Density 1.48 ...

Embodiment 1

[0069] A preparation method of a non-woven fabric material for paper diapers, comprising the following steps:

[0070] (1) Add methyl cellulose to the reaction kettle, then add deionized water, heat to 50°C, keep stirring for 30 minutes, then add maleic anhydride and graphene, continue stirring for 10 minutes, then add catalyst, and stir the reaction 2 hours, then washed with acetone and water in sequence, and dried to obtain an intermediate, the mixing mass ratio of methyl cellulose and deionized water was 1:5. The mass ratio of maleic anhydride to graphene and methyl cellulose is 1:0.3:35. Described catalyzer is pyridine; Described catalyzer addition and maleic anhydride mass ratio are 1:4;

[0071] (2) Add polypropylene resin, stearate, and nanofillers to a high-speed mixer for mixing, and then add them to an extruder for extrusion granulation to obtain a preliminary masterbatch; the polypropylene resin, stearin The mass ratio of acid salt and nano filler is 85:5:6. The ...

Embodiment 2

[0075] A preparation method of a non-woven fabric material for paper diapers, comprising the following steps:

[0076] (1) Add methyl cellulose to the reaction kettle, then add deionized water, heat to 55°C, keep stirring for 30 minutes, then add maleic anhydride and graphene, continue stirring for 15 minutes, then add catalyst, and stir for reaction 2 hours, and then successively wash with acetone and clear water, and dry to obtain an intermediate, the mixing mass ratio of methyl cellulose and deionized water is 1:6. The mass ratio of maleic anhydride to graphene and methyl cellulose is 2:0.5:40. Described catalyzer is pyridine; Described catalyzer addition and maleic anhydride mass ratio are 1:5;

[0077] (2) Add polypropylene resin, stearate, and nanofillers to a high-speed mixer for mixing, and then add them to an extruder for extrusion granulation to obtain a preliminary masterbatch; the polypropylene resin, stearin The mass ratio of salt and nano filler is 90:7:8. The...

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Abstract

The invention discloses a manufacturing method of a non-woven fabric material for paper diapers, and relates to the technical field of paper diaper manufacturing. The manufacturing method comprises the following steps of (1) obtaining an intermediate; (2) adding polypropylene resin, stearate and a nano-filler to a high-speed stirrer to be mixed, and then adding a mixture to an extruder to be extruded and pelletized, and obtaining prepared masterbatch; (3) obtaining a grafted prepolymer; and (4) obtaining the non-woven fabric material. According to the manufacturing method of the non-woven fabric material for the paper diapers, the manufactured non-woven fabric material for the paper diapers has the excellent water absorption rate and the excellent water absorption capacity, compared with the low water absorption performance of a conventional non-woven fabric material, the water absorption performance of the manufactured non-woven fabric material is greatly improved, and therefore the urine leakage phenomena of the paper diapers can be better prevented.

Description

technical field [0001] The invention belongs to the technical field of diapers, in particular to a method for preparing a nonwoven material for diapers. Background technique [0002] Non-woven fabrics have the characteristics of moisture-proof, breathable, flexible, light weight, non-combustible, easy to decompose, non-toxic and non-irritating, rich in color, low in price, and recyclable. For example, polypropylene (pp material) pellets are mostly used as raw materials, which are produced by continuous one-step process of high-temperature melting, spinning, laying, and hot-pressing coiling. [0003] Diapers are a kind of disposable diapers, which are made of non-woven fabrics, including special use for children and adults. In recent years, the amount of diapers has increased extremely. However, with the increase in market demand for diapers At the same time, the requirements for the quality and performance of diapers are constantly improving. However, the core layer of exis...

Claims

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Application Information

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IPC IPC(8): D04H3/007D04H3/147C08F251/02C08F220/06D01F8/10D01F8/06D01F1/10
CPCC08F251/02D01F1/10D01F8/06D01F8/10D04H3/007D04H3/147C08F220/06
Inventor 马雪侠
Owner 安徽舒源妇幼用品有限公司
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