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Moisture-permeable soft composite core and preparation method thereof

A composite core and soft technology, applied in sanitary napkins, absorbent pads, underwear, etc., can solve the problems of low utilization rate of superabsorbent resin, and achieve the effects of good compressibility, reduced usage, and fast absorption speed

Active Publication Date: 2021-07-16
JIAXING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to provide a moisture-permeable soft composite core and its preparation method, which is used to solve the technical problem of the low utilization rate of the superabsorbent resin in the composite core in the prior art, so as to improve the composite core's ability to absorb water. Technical effect of utilization rate of superabsorbent resin

Method used

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  • Moisture-permeable soft composite core and preparation method thereof
  • Moisture-permeable soft composite core and preparation method thereof
  • Moisture-permeable soft composite core and preparation method thereof

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preparation example Construction

[0032] figure 1 It is a method flowchart of a method for preparing a moisture-permeable flexible composite core shown according to an exemplary embodiment, as shown in figure 1 Shown, described preparation method comprises:

[0033] Step 100: Using electrostatic flocking method to fix the fiber fluff on the upper surface of the bottom non-woven fabric to obtain the fluff-containing non-woven fabric.

[0034] Step 200: Send the cashmere-containing non-woven fabric into an oven for pre-drying and strengthening. The pre-drying temperature used in the pre-drying and strengthening process is 80-90° C., and the pre-drying time is 3-5 minutes.

[0035]Step 300: Spray a superabsorbent resin on the upper surface of the fleece-containing nonwoven fabric after pre-baking and strengthening, the superabsorbent resin is 20-40 mesh, and the spraying amount is 10-25g / m 2 .

[0036] Step 400: Combine the cashmere-containing non-woven fabric sprayed with superabsorbent resin and the upper no...

Embodiment 1

[0050] (1) Soak fiber fluff with a length of 1.mm and a linear density of 1.5D in the finishing solution for 25 minutes. The temperature of the finishing solution is 45°C and the bath ratio is 1:30. The components in the finishing solution Percent by weight: 0.5wt% penetrant JFC, 2wt% K 2 SO 4 , 2wt% nonionic antistatic agent, 3wt% silica sol, 2wt% MgCl 2 , 1 wt% softener, 0.5 wt% glacial acetic acid, and the balance is water; wherein, the silicon dioxide concentration in the silica sol is 10 wt%, and the average particle size of silicon dioxide is 10-13 μm.

[0051] The material of the fiber fluff is PE / PP, the fiber fluff is upright, and the curl degree is 0.

[0052] (2) Drying the soaked fiber fluff so that the moisture content of the fiber fluff is 5 wt%, and the specific resistance of the fiber fluff after the drying treatment is 8´107 Ω·cm.

[0053] (3) Coat the bottom non-woven fabric with flocking glue and send it to a high-voltage electrostatic field. The coating ...

Embodiment 2

[0059] (1) Soak fiber fluff with a length of 2mm and a linear density of 2.5D in the finishing solution for 30 minutes. The temperature of the finishing solution is 50°C, the bath ratio is 1:35, and the weight percentage of each component in the finishing solution is For: 0.8wt% penetrant JFC, 3.5wt% K 2 SO 4 , 3wt% nonionic antistatic agent, 4.5wt% silica sol, 3wt% MgCl 2 , 2.5 wt% softener, 1.8wt% glacial acetic acid, and the balance is water; wherein, the silicon dioxide concentration in the silica sol is 13.6wt%, and the average particle size of silicon dioxide is 13-16 μm.

[0060] The material of the fiber fluff is PE / PET, the fiber fluff is upright, and the curl degree is 0.

[0061] (2) Drying the soaked fiber fluff so that the moisture content of the fiber fluff is 7.1 wt%, and the specific resistance of the fiber fluff after drying is 8.5´108 Ω·cm.

[0062] (3) Coat the bottom non-woven fabric with flocking glue and send it to a high-voltage electrostatic field. T...

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Abstract

The invention discloses a moisture-permeable soft composite core and a preparation method thereof, and relates to the technical field of disposable hygienic products. According to the moisture-permeable soft composite core and the preparation method thereof, the moisture-permeable soft composite core is prepared from a bottom-layer non-woven fabric, fiber fluff, super absorbent resin and an upper-layer non-woven fabric together, wherein the fiber fluff is fixed on the bottom-layer non-woven fabric by an electrostatic flocking method, the super absorbent resin is uniformly distributed among the fiber fluff, and the upper-layer non-woven fabric is fixedly connected with the fiber fluff, so that the prepared moisture-permeable soft composite core is good in softness, and the super absorbent resin after absorbing water has enough space to swell, so that the utilization rate of the super absorbent resin in the composite core is increased; and the production cost is reduced while the use amount of the super absorbent resin in the composite core is reduced.

Description

technical field [0001] The invention relates to the technical field of disposable sanitary products, in particular to a moisture-permeable soft composite core and a preparation method thereof. Background technique [0002] Sanitary napkins are absorbent substances used to absorb menstrual blood for menstruating women. Because women will present a certain angle with the body of the sanitary napkin when using the sanitary napkin, it is easier to cause friction with the groin of the human body, so sanitary napkins made of soft materials are more popular among women. [0003] The structure of existing sanitary napkins is usually a multi-layer structure, which is the surface layer, the flow guide layer, the absorbent core layer and the bottom layer from top to bottom. In addition, there are partitions on the side to prevent side leakage. Among them, the existing surface layer and diversion layer are generally made of hot-air non-woven fabric or spunlace non-woven fabric, and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F13/15A61F13/472A61F13/475A61F13/53
CPCA61F13/15577A61F13/472A61F13/475A61F13/53
Inventor 劳海晴方瑞峰张素晶张宇皓赵苑婷李肖斌钱程李书卿韩万里
Owner JIAXING UNIV
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