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Preparation method of plant-based foam core

A foam core, plant-based technology, applied in the field of preparation of plant-based foam cores, can solve the problems of uneven spreading, ineffective fixation, displacement, etc., and achieve the effects of improving comfort, keeping dryness, and small cell diameter

Active Publication Date: 2022-04-08
FUJIAN HENGAN HYGIENE MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The superabsorbent resin on the absorbent core mainly adopts the method of online spreading and compounding, which often has uneven spreading and cannot be effectively fixed. Under the action of external force, the superabsorbent resin is easy to shift in the absorbent core, affecting The effect of using the absorbent core

Method used

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  • Preparation method of plant-based foam core
  • Preparation method of plant-based foam core
  • Preparation method of plant-based foam core

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] refer to figure 1 , a plant-based foam core body, which includes an upper foam material layer 1, a middle layer 2 and a lower foam material layer 3 from top to bottom, and the preparation of the plant-based foam core body comprises the following steps:

[0037] S1, preparation of upper foam material layer

[0038] Weigh each raw material according to the following parts by weight: 5 parts of polylactic acid fiber, 30 parts of fluff pulp, 55 parts of nanocellulose-enveloped zinc oxide, 0.6 part of sodium lauryl sulfate, 0.6-3.3 parts of pulp softener, of which nanofiber The preparation process of plain-encapsulated zinc oxide is as follows: put nano-cellulose and nano-zinc oxide into the container according to the mass ratio of 8:2, and perform mechanical stirring under the synergy of ultrasonic waves to achieve good packaging of nano-cellulose on nano-zinc oxide powder. After uniform dispersion, nanocellulose-enveloped zinc oxide is obtained;

[0039] Put the raw mate...

Embodiment 2

[0050] A method for preparing a plant-based foam core, comprising the following steps:

[0051] S1, preparation of upper foam material layer

[0052] Weigh each raw material according to the following parts by weight: 8 parts of polylactic acid fiber, 32 parts of fluff pulp, 60 parts of nanocellulose-enveloped zinc oxide, 1.5 parts of polyacrylamide, 2 parts of pulp softener, wherein nano-cellulose-enveloped zinc oxide The preparation process is as follows: put nano-cellulose and nano-zinc oxide into the container according to the mass ratio of 8:2, and carry out mechanical stirring under the synergy of ultrasonic waves to realize the good wrapping of nano-zinc oxide powder by nano-cellulose and uniform dispersion. Nanocellulose encapsulated zinc oxide;

[0053] Put the raw materials into the reactor according to the above ratio, add deionized water as a solvent, stir and mix for 25 minutes, and foam evenly to obtain the upper foam matrix slurry with a solid content of 12%. ...

Embodiment 3

[0063] A method for preparing a plant-based foam core, comprising the following steps:

[0064] S1, preparation of upper foam material layer

[0065] Weigh each raw material according to the following parts by weight: 10 parts of polylactic acid fiber, 35 parts of fluff pulp, 65 parts of nanocellulose-enveloped zinc oxide, 2.2 parts of sodium dodecylsulfonate, 3.3 parts of pulp softener, wherein nanocellulose The preparation process of enveloping zinc oxide is as follows: put nano-cellulose and nano-zinc oxide into the container according to the mass ratio of 8:2, and carry out mechanical stirring under the synergistic effect of ultrasonic waves to achieve good wrapping and dispersion of nano-cellulose on nano-zinc oxide powder. After uniformity, nanocellulose-enveloped zinc oxide is obtained;

[0066] Put the raw materials into the reactor according to the above ratio, add deionized water as a solvent, stir and mix for 30 minutes, and foam evenly to obtain the upper foam mat...

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Abstract

The invention relates to the technical field of disposable hygienic products, and provides a preparation method of a plant-based foam core, which comprises the following steps: S1, preparing an upper foam material layer; s2, preparing a lower foam material layer; s3, injection molding of the foam core body; and S4, drying. The composite foam core body material with obvious structural difference is prepared, the super absorbent resin is uniformly distributed in the foam core body and is fixed in position, and a paper diaper finished product produced by using the foam core body prepared by the invention is high in absorption speed and small in back seepage amount.

Description

technical field [0001] The invention relates to the technical field of disposable hygiene products, in particular to a method for preparing a plant-based foam core. Background technique [0002] The absorbent core is the most important component of absorbent hygiene products and plays a vital role in product performance. At present, the commonly used absorbent cores on the market are mainly fluff pulp cores and composite cores. The fluff pulp cores are mainly formed by dispersing superabsorbent resin (SAP) particles in fluff pulp and wrapping toilet paper on the outside. Such a core body, but the core body is prone to agglomeration, fracture or curling during use. Composite core is the core structure commonly used in China at present. It is mainly composed of non-woven fabric / toilet paper, fluffy cotton, and super absorbent resin. The core has good integrity and does not break and agglomerate. For example, Chinese patent application number: 202021835547.0 discloses a diape...

Claims

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Application Information

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IPC IPC(8): A61F13/15
Inventor 宋特吴晓彪隋涛
Owner FUJIAN HENGAN HYGIENE MATERIAL
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