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Preparation method of composite absorbent core and production device thereof

A technology for absorbing cores and production equipment, applied in absorbent pads, medical science, clothing, etc., which can solve the problems affecting the penetration rate, diffusion rate and utilization rate of cores, the drift and accumulation of polymer water-absorbent resins, and the formation of diversion grooves Difficult to control and other problems, to achieve the effect of ingenious structure of production equipment, improved diversion performance, and simple and easy implementation

Pending Publication Date: 2019-01-18
广东昱升个人护理用品股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The formation of the diversion groove is not easy to control, and it is very easy to cause the drift and accumulation of the polymer water-absorbent resin during the spreading process, resulting in inaccurate positioning of the diversion groove and unclear outline, thereby affecting the penetration rate and diffusion of the core. Speed ​​and Utilization

Method used

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  • Preparation method of composite absorbent core and production device thereof
  • Preparation method of composite absorbent core and production device thereof
  • Preparation method of composite absorbent core and production device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Embodiment 1 A kind of composite absorbent core body A and its production equipment and preparation method

[0051] 1. Production equipment for a composite absorbent core

[0052] A kind of production equipment of composite absorbent core body of the present invention, as figure 1 As shown, it includes a conveying device and sequentially connected front glue spraying device 2, cloth guide roller 3, lower layer polymer injection device, negative pressure device 4, upper layer polymer injection device and rear glue spray device 6; the upper and lower layers are high The molecular injection device is the feeding roller 1101 . Such as figure 2 As shown, the outer wall of the unloading roller 1101 is provided with a plurality of grooves, and when the unloading roller 1101 rotates, the polymer water-absorbent resin is injected into the non-woven fabric through the grooves; There is also a filling area matching the diversion groove, and a filler 11 is provided in the filli...

Embodiment 2

[0071] The preparation of embodiment 2 composite core body B, C, D

[0072] The preparation method is basically the same as in Example 1, except that the mass ratios of 2-denier fibers, 4-denier fibers and 6-denier fibers in the fluffy non-woven fabric 701 in this example are 0.8:0.6:1.8, 0.5:1, respectively :2, 1:0.5:1.5, three different composite cores B, C, D were obtained respectively.

[0073] The composite core body A of the above-mentioned embodiment 1 and the composite core body B, C, and D in the embodiment 2 are subjected to a performance test, and the comparative test is a composite core body made of only 6 denier fibers according to the preparation process of the embodiment 1, The test method refers to GB / T28004-2011, and the absorption performance test results are shown in Table 1.

[0074] The absorption performance test result of the composite core body A in the embodiment 1 of table 1 and the composite core body B, C, D in the embodiment 2

[0075]

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Abstract

The invention discloses a preparation method of a composite absorbent core and a production device thereof. The production device comprises a conveying device, a front glue spraying device, a cloth guide roller, a lower polymer injection device, a negative pressure device, an upper polymer injection device and a rear glue spraying device connected in sequence. The lower polymer injection device isa blanking roller, a plurality of grooves are arranged on the outer wall of the blanking roller, and when the blanking roller rotates, the polymer water-absorbent resin is injected into the non-wovenfabric through the grooves; The blanking roller is also provided with a filling area matched with the flow guiding groove, and a filler is arranged in the filling area for closing the groove, so thatthe filling area is free of macromolecule water-absorbent resin, thereby forming the flow guiding groove when blanking. The flow guide groove formed by the invention is accurate in positioning and clear in outline, avoids the drift and accumulation of macromolecules, reduces reverse osmosis water and leakage phenomenon, improves the permeation speed and diffusion speed of the core, and is simpleand easy to replace the position and shape of the flow guide groove.

Description

technical field [0001] The invention belongs to the technical field of production of absorbent sanitary products. More specifically, it relates to a method for preparing a composite absorbent core and its production equipment. Background technique [0002] The absorbent core is the core part to ensure the function of water absorption and water locking. After absorbing water, the water is easy to accumulate in the water injection part and is not easy to spread. Due to the influence of gel retardation, the utilization rate of polymer water-absorbing materials is low, and the water-locking ability also has certain limitations. sex. At the same time, due to the relatively loose structure of this material, once it absorbs water, it will form lumps and faults, and the core will often be deformed unavoidably after being squeezed by movement. In the prior art, by improving the mixing method of polymer water-absorbing material and wood pulp, the sandwich structure and uniform mixin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F13/15A61F13/534
CPCA61F13/15577A61F13/15585A61F13/15617A61F13/15707A61F13/534A61F2013/530481A61F2013/530759A61F2013/530715A61F2013/15463A61F2013/15821A61F2013/15878
Inventor 张新雏龚斯琪龚斯继
Owner 广东昱升个人护理用品股份有限公司
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