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Manufacture process of elastic non-woven fabric for baby diapers, pant pads and urinal pads

A manufacturing process and technology of diapers, applied in the field of non-woven fabrics, can solve the problems of elastic fabrics such as decreased elasticity, and achieve the effect of ensuring elasticity and tightness

Inactive Publication Date: 2017-08-22
浙江华晨非织造布有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned elastic cloths all use the characteristics of raw materials to realize the characteristics of elastic cloths. During the manufacturing process, the raw materials contain impurities or uneven traction will cause the elasticity of elastic cloths to decrease.

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The manufacturing process of elastic non-woven fabrics for diapers, trouser pads and urine pads is characterized in that it comprises the following steps:

[0019] S1. Raw material preparation: select Vistamaxx VM2120 ethylene-propylene elastomer as the main material, and add PP material to make high polymer slices, and control the moisture content of the slices to 3%;

[0020] S2. Feed melting: feed the chips into the screw extruder for melting and extrusion, and add slip agent to the screw extruder. The diameter of the screw is 120mm, and the length-to-diameter ratio of the screw extruder is 30:1. The temperature of the feed section is controlled at 190°C, the temperature of the compression section is controlled at 200°C, and the screw speed is 50r / min;

[0021] S3. Filtration and spinning: the melt passes through the melt filter, the filtration accuracy is 50um, the diameter of the filter screen is 200mm, and the pressure before filtration is 1.85MPa, and the pressur...

Embodiment 2

[0027] The manufacturing process of elastic non-woven fabrics for diapers, trouser pads and urine pads is characterized in that it comprises the following steps:

[0028] S1. Raw material preparation: select Vistamaxx VM2120 ethylene-propylene elastomer as the main material, and add PP material to make high polymer slices, and control the moisture content of the slices to 3%;

[0029] S2. Feed melting: feed the chips into the screw extruder for melting and extrusion, and add slip agent to the screw extruder. The diameter of the screw is 120mm, and the length-to-diameter ratio of the screw extruder is 30:1. The temperature of the feed section is controlled at 190°C, the temperature of the compression section is controlled at 200°C, and the screw speed is 50r / min;

[0030] S3. Filtration and spinning: the melt passes through the melt filter, the filtration accuracy is 50um, the filter diameter is 200mm, and the pressure before filtration is 2MPa, and the pressure after filtratio...

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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PUM

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Abstract

The invention relates to a manufacture process of an elastic non-woven fabric for baby diapers, pant pads and urinal pads. The manufacture process comprises the following steps: S1, preparation of raw materials; S2, feeding and melting: feeding slices into a screw extruder to be subjected to melt extrusion, adding a slipping agent into the screw extruder with the length-diameter ratio of (15-30):1, and controlling the temperature of a feeding segment to be 190+ / -10 DEG C, the temperature of a compression segment to be 200+ / -10 DEG C and a screw to rotate at the speed of 40+ / -10 r / min; S3, filtering and spinning: enabling the melt to pass through a melt filter with the filtering accuracy of 50+ / -5 [mu]m, the diameter of a filter screen of 200 mm, the pre-filtering pressure intensity of 2.00+ / -0.15 MPa and the post-filtering pressure intensity of 7.00+ / -0.25 MPa, controlling the rotational speed of a metering pump to be 14 rpm and the temperature of a metering segment to be 210+ / -30 DEG C, then feeding the melt into a spinning box body to be subjected to a melt-blowing process, and controlling the temperature of the box body to be 200+ / -20 DEG C, the pressure intensity of the box body to be 4.10+ / -0.10 MPa, the aperture of a spinneret plate to be 0.30+ / -0.55 mm and the hole number of 10800; S4, cooling and drafting; S5, web forming and prepressing; S6, hot-rolling and solidification; and S7, winding.

Description

technical field [0001] The invention belongs to the field of nonwoven fabrics, and in particular relates to a manufacturing process of elastic nonwoven fabrics used for diapers, panty pads and urine pads. Background technique [0002] Home textiles and decorative products on the market now have a strong demand for elastic fabrics, but in the prior art, elastic nonwoven fabrics are mainly made of synthetic fibers or all of them are made of synthetic fibers. The production of elastic nonwovens can be summarized into the following two ways. The first approach is to combine synthetic fiber non-woven fabrics or synthetic fiber bundles with elastic films or elastic nets to obtain non-woven fabrics with certain elasticity; the second approach is to combine single-component or multi-component Elastic synthetic fibers are made into elastic nonwoven fabrics after opening, mixing, carding, web laying, spunlace or needle entanglement, or heat treatment. However, the above-mentioned el...

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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IPC IPC(8): D04H1/4382D01D1/10D04H1/558D04H1/44
CPCD04H1/4382D01D1/106D04H1/44D04H1/558
Inventor 唐奎娣闻利强
Owner 浙江华晨非织造布有限公司