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Odorless TPU film for diapers and preparation method thereof

An odorless, diaper-free technology, applied in the field of TPU film and its preparation, odorless TPU film for diapers and its preparation, can solve the problem of single function, achieve processing speed and product quality improvement, and good stability , increase the effect of flexibility

Active Publication Date: 2020-08-11
DONGGUAN XIONGLIN NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The materials used for baby diapers in the prior art have relatively single functions, therefore, it is very meaningful to develop a material for diapers that is breathable, soft, antibacterial and strong in water absorption

Method used

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  • Odorless TPU film for diapers and preparation method thereof
  • Odorless TPU film for diapers and preparation method thereof
  • Odorless TPU film for diapers and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] The invention provides an odorless TPU film for diapers, which comprises a TPU nanofiber surface layer, a TPU nanofiber middle layer and a TPU nanofiber bottom layer stacked in sequence.

[0075] The TPU nanofiber surface layer includes 30 parts by weight of polyurethane nanofibers, 35 parts of polydimethylsiloxane nanofibers, 2 parts of antibacterial agents, 1 part of talcum powder, and 1 part of erucamide.

[0076] The TPU nanofiber middle layer includes 30 parts of polyurethane nanofibers and 40 parts of sodium polyacrylate nanofibers in parts by weight.

[0077] The TPU nanofiber bottom layer includes 30 parts of polyurethane nanofibers, 15 parts of polydimethylsiloxane nanofibers and 8 parts of antibacterial agent in parts by weight.

[0078] Its preparation method is:

[0079] (1) Polyurethane, antibacterial agent (chitosan hydrochloride), talcum powder, erucamide are mixed and dissolved in acetone by parts by weight, polydimethylsiloxane is dissolved in acetone ...

Embodiment 2

[0084] The invention provides an odorless TPU film for diapers, which comprises a TPU nanofiber surface layer, a TPU nanofiber middle layer and a TPU nanofiber bottom layer stacked in sequence.

[0085] The TPU nanofiber surface layer includes 40 parts by weight of polyurethane nanofibers, 40 parts of polydimethylsiloxane nanofibers, 3 parts of antibacterial agents, 1 part of talcum powder, and 1 part of erucamide.

[0086] The TPU nanofiber middle layer includes 40 parts of polyurethane nanofibers and 50 parts of sodium polyacrylate nanofibers by weight.

[0087] The TPU nanofiber bottom layer includes 40 parts of polyurethane nanofibers, 20 parts of polydimethylsiloxane nanofibers and 10 parts of antibacterial agent in parts by weight.

[0088] Its preparation method is:

[0089](1) Polyurethane, antibacterial agent (chitosan quaternary ammonium salt), talcum powder and erucamide are mixed and dissolved in N,N-dimethylformamide in parts by weight, and polydimethylsiloxane i...

Embodiment 3

[0094] The invention provides an odorless TPU film for diapers, which comprises a TPU nanofiber surface layer, a TPU nanofiber middle layer and a TPU nanofiber bottom layer stacked in sequence.

[0095] The TPU nanofiber surface layer includes 20 parts by weight of polyurethane nanofibers, 30 parts of polydimethylsiloxane nanofibers, 1 part of antibacterial agent, 1 part of talcum powder, and 1 part of erucamide.

[0096] The TPU nanofiber middle layer includes 20 parts of polyurethane nanofibers and 30 parts of sodium polyacrylate nanofibers in parts by weight.

[0097] The TPU nanofiber bottom layer includes 20 parts of polyurethane nanofibers, 10 parts of polydimethylsiloxane nanofibers and 5 parts of antibacterial agent in parts by weight.

[0098] Its preparation method is:

[0099] (1) Polyurethane, antibacterial agent (hydroxypropyl chitosan), talcum powder and erucamide are mixed and dissolved in N,N-dimethylformamide in parts by weight, and polydimethylsiloxane is P...

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Abstract

The invention relates to an odorless TPU film for diapers and a preparation method of the odorless TPU film. The odorless TPU film for diapers comprises a TPU nanofiber surface layer, a TPU nanofibermiddle layer and a TPU nanofiber bottom layer which are stacked in sequence. The odorless TPU film for diapers is creatively formed by sequentially stacking nanofiber layers with different properties,each nanofiber layer is a film with a microcosmic network structure formed by interweaving nanofibers, and due to the microcosmic network structure, the air permeability of the film can be remarkablyimproved, and meanwhile, the film is softer; a network-shaped microstructure formed by the nanofibers is not beneficial to adhesion of a bacterial biofilm and has excellent antibacterial performance;and the network-shaped microstructure has very good stability.

Description

technical field [0001] The invention belongs to the technical field of synthetic materials, and in particular relates to a TPU film and a preparation method thereof, in particular to an odorless TPU film for diapers and a preparation method thereof. Background technique [0002] Diapers are commonly used daily necessities for babies. They are collectively referred to as diapers, diapers, and pull-up pants. Because of their strong water absorption, they are commonly known as "diapers". Good material, outstanding feature is large water absorption and water storage capacity. In addition to the strong water absorption capacity, since diapers are baby products and the baby's skin is delicate, the material needs to have excellent air permeability and softness, and it is best to have excellent antibacterial ability to ensure comfort and safety. [0003] Polyurethane is a general term for macromolecular compounds containing repeated urethane groups in the main chain. It has excelle...

Claims

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Application Information

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IPC IPC(8): B32B25/02B32B25/10B32B25/14B32B37/00D04H1/728D01D5/00D04H1/4358D04H1/4326D04H1/4282D04H1/4382D01F8/16D01F8/10D01F1/10D06M17/00
CPCB32B5/02B32B5/26B32B37/00D04H1/728D01D5/003D04H1/4358D04H1/4326D04H1/4282D04H1/4382D01F8/16D01F8/10D01F1/103D01F1/10D06M17/00B32B2262/0215
Inventor 王一良何建雄杨博
Owner DONGGUAN XIONGLIN NEW MATERIAL TECH
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