Waterproof and breathable paper diaper base membrane and manufacturing method thereof

A waterproof breathable, waterproof breathable layer technology, applied in textiles and papermaking, medical science, fabric surface trimming, etc., can solve the problems of low production technology, the bottom film depends on foreign imports, etc. Effect

Active Publication Date: 2015-11-18
SOOCHOW BOYOO NANO TECH CO LTD
View PDF6 Cites 36 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Moreover, the current production technology of domestic diaper bottom film is still at a relatively low level, and the bottom film used in domestic high-end diapers mainly relies on foreign imports.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Waterproof and breathable paper diaper base membrane and manufacturing method thereof
  • Waterproof and breathable paper diaper base membrane and manufacturing method thereof
  • Waterproof and breathable paper diaper base membrane and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as figure 1 , 2, 3, a waterproof and breathable diaper bottom film is disclosed in this embodiment, including a nanofiber accumulation layer 201 formed by high-voltage electrospinning and a melt-blown non-woven fiber layer 202, wherein the melt-blown non-woven fiber Layer 202 is a non-woven fiber layer with an air permeability of 100-700 CFM and a thickness of 5-20 GSM.

[0034] The method for preparing above-mentioned base film comprises the following steps:

[0035] 1) Prepare a non-woven fabric fiber layer with an air permeability of 100-700CFM and a thickness of 5-20GSM: select a skin-friendly polymer resin, wherein the skin-friendly polymer resin is polypropylene resin (PP), polyethylene terephthalate One of ethylene glycol formate (PET) and polyamide resin (PA), the skin-friendly polymer resin is added to the melt-blown spinning mechanism 30 as a raw material, and the conveying roller 14 drives the conveyor belt 12 to move, while the melt-blown spinning Th...

Embodiment 2

[0042] Embodiment 2 differs from Embodiment 1 only in that the components of the hydrophobic resin and the organic solvent are different.

[0043] Disclosed in this embodiment is a waterproof and breathable diaper bottom film, comprising a nanofiber accumulation layer 201 and a melt-blown non-woven fabric fiber layer 202 formed by spinning composites, wherein the air permeability of the melt-blown non-woven fabric fiber layer 202 is 100~700CFM, non-woven fiber layer with a thickness of 5~20GSM.

[0044] The method for preparing above-mentioned base film comprises the following steps:

[0045] 1) Prepare a non-woven fabric fiber layer with an air permeability of 100-700CFM and a thickness of 5-20GSM: select a skin-friendly polymer resin, wherein the skin-friendly polymer resin is polypropylene resin (PP), polyethylene terephthalate One of ethylene glycol formate (PET) and polyamide resin (PA), the skin-friendly polymer resin is added to the melt-blown spinning mechanism 30 as ...

Embodiment 3

[0052] The difference between Example 3 and Example 1 is: the composition of the non-woven fiber layer is different, and the spinning parameters of the multi-nozzle high-voltage electrostatic spinning equipment are different.

[0053] Such as figure 1 , 4 , 5, this embodiment discloses a waterproof and breathable paper diaper bottom film, including a nanofiber accumulation layer 101 and a non-woven fiber layer 102 composited by high-voltage electrospinning, wherein the non-woven fiber layer 102 The air permeability is 100~700CFM, and the thickness is 5~20GSM.

[0054] The method for preparing above-mentioned base film comprises the following steps:

[0055] 1) Select one of the easily degradable and hygroscopic cellulose fibers, regenerated cellulose fibers, and chitosan fibers as a material to make a non-woven fiber layer with a thickness of 5-20GSM, and carry out the non-woven fiber layer Embossing or printing treatment, the pattern representing the company culture is pri...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a waterproof and breathable paper diaper base membrane which comprises a base material layer and a waterproof and breathable layer composited with the base material layer. The waterproof and breathable paper diaper base membrane is characterized in that the base material layer is a non-woven fabric fiber layer with the breathability being 100-700 CFM and the thickness being 5-20 GSM, and the waterproof and breathable layer is a nanometer fiber stacking body layer. The invention further provides a manufacturing method of the waterproof and breathable paper diaper base membrane. Hydrophobic high polymer resin is utilized for passing through quantity production high pressure electrostatic spinning equipment, and electrostatic spinning is directly performed on an ultrafine fibber non-woven fabric to form a nanometer fiber stacking body. According to the paper diaper base membrane produced by compositing the nanometer fiber and the ultrafine fiber non-woven fabric, the water pressure resistance can reach more than 4000 mm H2O, meanwhile, the breathability can reach more than 3 CFM, and the water vapor permeance can reach more than 10000 g/cm<2>.24h. A gap for production of the waterproof and breathable base membrane in China is filled, and the problems of urine leakage and red and swollen buttocks caused when a baby wears a paper diaper are completely solved; meanwhile, the base membrane formed by compositing the nanometer fiber and the non-woven fabric can be applied to the market of adult diapers and woman sanitary towels and has the good market development prospect.

Description

technical field [0001] The invention belongs to the technical field of waterproof and breathable products, and in particular relates to a waterproof and breathable paper diaper base film and a preparation method thereof. Background technique [0002] According to market research, factors such as air permeability, water absorption, comfort, dryness, and safety are the five main factors that mothers consider when purchasing diapers, among which air permeability is particularly important. The sweat glands on the baby's skin have very small perspiration pores, which cannot control the temperature of the skin well. For example, the air permeability of the diaper is not good. Make the butt red, swollen and inflamed, leading to diaper rash. Since the inside of the diaper is a hot and humid environment when urine is produced, the so-called air permeability actually refers to the water vapor permeability, and the available water vapor transmission rate (g / cm 2 24h) to represent, bu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): D04H13/00D04H1/728D06C15/02A61F13/514
CPCD04H13/00A61F13/514D04H1/728D06C15/02
Inventor 夏建华董祥徐卫红徐晓东
Owner SOOCHOW BOYOO NANO TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap