Paper diaper and preparation method thereof

A diaper, PTT-PTT technology, applied in the field of disposable sanitary products, can solve the problems of poor air permeability and moisture permeability, stuffy wearing, poor comfort, etc., and achieve the effect of reducing equipment investment, reducing production processes, and reducing production costs

Active Publication Date: 2018-07-24
JIAXING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] It can be seen from the above data that the elasticity of the elastic waistline of the existing baby diapers is mainly realized by the elasticity of the elastic threads. The changes mentioned in the data are only the thickness of the elastic threads, the number of threads used, The thickness of the covering layer, etc., there are also patents that use elastic foam instead of elastic threads. Foam is a kind of polyurethane sponge. Although it has very good elasticity and softness, it has poor air permeability and is very stuffy when worn in summer. , and the various improvement schemes mentioned in the above materials cannot fundamentally change the problems that the use of multiple elastic filaments may cause greater pressure on the human body and poor air and moisture permeability and poor comfort

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
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  • Paper diaper and preparation method thereof
  • Paper diaper and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Step 101, mixing PTT fiber with PTT / PET bicomponent fiber to obtain PTT-PTT / PET mixed fiber, the ratio of PTT fiber and PTT / PET bicomponent fiber in the PTT-PTT / PET mixed fiber is 80- 95%: 5-20%, spray antistatic liquid to the PTT-PTT / PET mixed fiber, and leave the sprayed PTT-PTT / PET mixed fiber for 4-6h to make the PTT-PTT / PET The moisture regain of PET mixed fiber reaches 9.5-10.5%, wherein, the proportioning of each component in the described antistatic liquid is antistatic softening agent: water is 5-9%:91-95%, and described antistatic softening agent is Non-ionic.

[0040] Step 102, the PTT-PTT / PET mixed fiber after standing is subjected to rough opening, fine opening and carding into a web process to obtain a PTT-PTT / PET mixed fiber web, wherein the rough opening, fine opening The process parameters of the opening and carding process include: the line speed of the opening roller is 500-650m / min, 640-790 m / min, 850-900 m / min; the speed of the main cylinder is 620...

Embodiment 2

[0058] 201, prepare elastic non-woven fabric:

[0059] A. Selection of raw materials:

[0060] PTT fiber is selected, the fiber fineness is 1.5D, and the length is 38mm; the fiber structure is eccentric PTT / PET bicomponent fiber, the eccentric ratio is 6:4, the fiber fineness is 2D, and the length is 40mm.

[0061] B. Preprocessing:

[0062] PTT fibers are mixed with PTT / PET bicomponent fibers to obtain PTT-PTT / PET mixed fibers, and the ratio of PTT fibers to PTT / PET bicomponent fibers in the PTT-PTT / PET mixed fibers is 95%: 5% , spray antistatic liquid to the PTT-PTT / PET mixed fiber, and leave the sprayed PTT-PTT / PET mixed fiber for 4 hours, so that the moisture regain of the PTT-PTT / PET mixed fiber reaches 9.5% , wherein, the proportioning of each component in the antistatic liquid is antistatic softener: water is 5%:95%, and the antistatic softener is nonionic.

[0063] C. Preparation of non-woven base fabric:

[0064] (1) The PTT-PTT / PET mixed fiber after standing i...

Embodiment 3

[0077] 301, prepare elastic non-woven fabric:

[0078] A. Selection of raw materials:

[0079] PTT fiber is selected, the fiber fineness is 2D, and the length is 38mm; the fiber structure is eccentric PTT / PET bicomponent fiber, the eccentric ratio is 6:4, the fiber fineness is 2D, and the length is 40mm.

[0080] B. Preprocessing:

[0081] PTT fibers are mixed with PTT / PET bicomponent fibers to obtain PTT-PTT / PET mixed fibers, and the ratio of PTT fibers to PTT / PET bicomponent fibers in the PTT-PTT / PET mixed fibers is 85%: 15% , spray antistatic liquid to the PTT-PTT / PET mixed fiber, and leave the sprayed PTT-PTT / PET mixed fiber for 5 hours, so that the moisture regain of the PTT-PTT / PET mixed fiber reaches 10% , wherein, the proportioning of each component in the antistatic liquid is antistatic softener: water is 7%:93%, and the antistatic softener is nonionic.

[0082] C. Preparation of non-woven base fabric:

[0083] (1) The PTT-PTT / PET mixed fiber after standing is ...

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
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Abstract

The invention discloses a paper diaper and a preparation method thereof, and relates to the technical field of disposable sanitary products. PTT (polytrimethylene terephthalate) fibers and PTT/PET (polyethylene terephthalate) two-component fibers are selected, opening, carding and spunlace fixing processes are adjusted, special shrinkage and folding processes are selected, a prepared elastic non-woven fabric has excellent elasticity, further has good softness and breathability of a spunlace non-woven fabric and has better safety, and the elastic non-woven fabric is arranged at an elastic backposition of the paper diaper. Compared with a traditional paper diaper, the paper diaper has the advantages that a rubber band is omitted, and the prepared paper diaper applies more uniform elastic force to the body of an infant, so that the paper diaper has better conformity and helps good development of the hip of the infant to a certain degree.

Description

technical field [0001] The invention relates to the technical field of disposable sanitary products, in particular to a paper diaper and a preparation method thereof. Background technique [0002] In recent years, with the full liberalization of the second-child policy and the change in the concept of parenting, baby diaper care products have maintained a momentum of rapid growth. From 2014 to 2016, the average annual sales of the domestic baby diaper market was between 40 billion and 45 billion yuan. The average annual growth rate is between 11% and 13%, much higher than the world average of 4%. It is expected that in the next five years, the baby diaper market will maintain a double-digit growth rate, and the domestic market sales will reach 100 billion yuan by 2020. At present, the overall penetration rate of baby diapers in my country is 46.2%, but in relatively poor towns and rural areas, the penetration rate has not yet reached 10%, far lower than 90% in Japan and the...

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
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F13/15D04H1/4382D04H1/435D04H1/492D06C7/02
CPCA61F13/15593A61F13/15699A61F13/15731A61F13/15804D04H1/435D04H1/4382D04H1/492D06C7/02
Inventor 钱程
Owner JIAXING UNIV
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