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A thermal bonding method dust-free puffed paper and its preparation method and application

A technology of puffed paper and thermal bonding, which is applied in textiles and papermaking, spray/jet textile material treatment, removal of liquid/gas/steam, etc., can solve the problems of changing the water absorption performance of the water-absorbing puffed paper layer, and achieve excellent water absorption performance, The effect of guaranteeing performance

Active Publication Date: 2021-07-20
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Though these technical schemes improve to some extent to product because of stressed dust leakage (fine fiber), all can not thoroughly solve the defect that this tiny fiber leaks because of being stressed;

Method used

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  • A thermal bonding method dust-free puffed paper and its preparation method and application
  • A thermal bonding method dust-free puffed paper and its preparation method and application
  • A thermal bonding method dust-free puffed paper and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] The dust-free puffed paper surface modifier in embodiment 1 comprises the following components (as shown in table 1) in parts by mass:

[0059] Table 1

[0060]

[0061] After metering the above components, add them into a heated container for stirring and mixing, then raise the temperature to 40°C, stir, dissolve and mix for 1 hour; cool down to room temperature to become a dust-free puffed paper surface modifier.

[0062] The grammage of the expanded paper used in embodiment 1 is 40 grams / m 2 . Bulk paper component: concentric chemical fiber is 1.5 denier, and fiber length is 5cm; Wood fluff pulp fiber is 2cm; The ratio of chemical fiber and wood fluff pulp fiber is 30 / 70.

[0063] The puffed paper 1 after air-laid forming enters figure 1 The finished product of the present invention can be obtained after the shown device is sprayed, dried and embossed. figure 1 It is a diagram of the device for preparing thermally bonded dust-free puffed paper according to the...

Embodiment 2

[0070]The dust-free puffed paper surface modifier in embodiment 2 comprises the following components (as shown in table 3) in parts by mass:

[0071] table 3

[0072]

[0073]

[0074] After metering the above components, add them into a heated container for stirring and mixing, then raise the temperature to 60°C, stir, dissolve and mix for 2 hours; cool down to room temperature to become a dust-free puffed paper surface modifier.

[0075] The grammage of the expanded paper used in embodiment 2 is 60 grams / m 2 . Bulk paper component: concentric chemical fiber is 1.5 denier, and fiber length is 5cm; Wood fluff pulp fiber is 2cm; The ratio of chemical fiber and wood fluff pulp fiber is 30 / 70.

[0076] The above expanded paper enters figure 1 The device is sprayed, dried and embossed to obtain the finished product of the present invention.

[0077] When spraying, the modifier is diluted 8 times with industrial pure water, and the temperature of the embossing roller is 1...

Embodiment 3

[0083] The dust-free puffed paper surface modifier in embodiment 3 comprises the following components (as shown in Table 5) in parts by mass:

[0084] table 5

[0085]

[0086] After metering the above components, add them into a heated container for stirring and mixing, then raise the temperature to 50°C, stir, dissolve and mix for 1 hour; cool down to room temperature to become a dust-free puffed paper surface modifier.

[0087] The grammage of the expanded paper used in embodiment 3 is 80 grams / m 2 . Bulk paper component: concentric chemical fiber is 1.5 denier, and fiber length is 5cm; Wood fluff pulp fiber is 2cm; The ratio of chemical fiber and wood fluff pulp fiber is 20 / 80.

[0088] The above expanded paper enters figure 1 The device is sprayed, dried and embossed to obtain the finished product of the present invention.

[0089] When spraying, the modifier is diluted 10 times with industrial pure water, and the temperature of the embossing roller is 120°C; the d...

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Abstract

The invention discloses a heat-bonded dust-free puffed paper, a preparation method and application thereof. The present invention is realized by carrying out modification treatment in the production process of puffed paper. After the mixed fibers are formed by multi-layer air-laid netting, they are put into a surface spray sizing device, and the upper and lower surfaces of the puffed paper are treated. It is formed by spraying, drying and embossing a surface modifying agent provided by the invention. The surface modifier comprises the following components in parts by weight: 100 parts of water; 1-5 parts of water-based film-forming agent; 0.5-3 parts of water-based binder; 0.3-1.0 part of humectant; 0.5-1.0 part of glycerin; 0.1-0.5 parts of agent; 0.1-0.5 parts of substrate wetting agent; 0.3-1.0 parts of imidazolidinyl urea; 0.1-0.3 parts of paraben. The puffed paper modified by the invention not only does not leak or dust, but also has better water absorption performance than the puffed paper which has not been treated by the invention.

Description

technical field [0001] The invention belongs to the field of preparation of dust-free paper (Airlaid Paper), in particular to a preparation method and application of dust-free puffed paper. Background technique [0002] Dust-free paper (expanded paper), also known as airlaid pulp nonwovens, is a type of dry-laid nonwovens. Dust-free paper has unique physical properties, such as high elasticity, softness, excellent hand feeling and drape, high water absorption and good water retention performance, and is widely used in hygiene care products, special medical products, industrial wipes and other fields. [0003] There are two main features of dust-free paper: one is that the raw material is wood pulp fiber; the other is that it adopts air-laid technology. The production process of nonwovens is mainly two processes of web forming and reinforcement. The production of dry-laid papermaking nonwovens mainly adopts two methods of chemical bonding and thermal bonding. [0004] 1. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06N3/00D06N3/04D06N3/12D04H1/4382D04H1/587D04H1/732D06B1/02D06B15/00D06C23/04
CPCD04H1/4382D04H1/587D04H1/732D06B1/02D06B15/00D06C23/04D06N3/0059D06N3/042D06N3/12D06N2209/148
Inventor 崔跃飞崔若曦
Owner SOUTH CHINA UNIV OF TECH
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