Plant fiber dispersible material and preparation method thereof

A plant fiber and chopped plant fiber technology, applied in the field of non-woven materials, can solve the problems of low wet strength, different fiber lengths, and more fiber agglomeration, and achieve the goal of reducing ultra-short fiber sticking to the net and reducing pulp Loss, reduce the effect of fiber shedding

Active Publication Date: 2021-02-26
HANGZHOU NBOND NONWOVENS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In order to solve the problems of low wet strength, poor softness, easy chipping, poor product uniformity and many fiber agglomerates caused by uneven plant fiber length, the present invention provides a plant fiber The flushable material and its preparation method, the invention uses plant fiber as the main raw material, and can produce the plant fiber flushable material with high strength in wet state, soft hand feeling and low shed amount
And through the special wet spunlace nonwoven process of the present invention, it can overcome the defects that it is difficult to wet-laid web processing due to the different fiber lengths and natural curls.

Method used

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  • Plant fiber dispersible material and preparation method thereof
  • Plant fiber dispersible material and preparation method thereof
  • Plant fiber dispersible material and preparation method thereof

Examples

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Effect test

preparation example Construction

[0078] A preparation method of plant fiber flushable material, comprising the following steps:

[0079] 1) Preparation of chopped plant fibers: One or more plant fibers are opened and removed by an opening and cleaning machine with sawtooth rollers, and then the opened plant fibers are longitudinally sorted so that the curled plant fibers are combed into a straight state and made into plant fiber strips; the plant fiber strips are cut to make chopped plant fibers.

[0080] 2) Preparation of upper and lower fiber layer slurries: add chopped plant fibers and / or plant fiber linters to water and stir to disperse the fibers, use a slit filter to remove flocculated fiber clusters and neps, and make a concentration of 0.1-2wt% fiber mixed slurry, and the filtered flocculated fiber clusters and neps are mixed with the raw materials in step 3) for disintegration.

[0081] 3) Preparation of medium fiber layer slurry: add water to the plant fiber pulp and stir to disintegrate, after dis...

Embodiment 1

[0094] A plant fiber flushable material with a mass per unit area of ​​54.7g / m 2 , including the upper, middle and lower fiber layers that are superimposed and connected to each other; wherein the upper fiber layer and the lower fiber layer are composed of chopped absorbent cotton fibers and absorbent cotton linters with an average length of 5mm; the middle fiber layer is composed of an average length of 2.3mm Composed of cotton pulp; the fibers in the upper, middle and lower layers are entangled with each other. Wherein the upper fiber layer and the lower fiber layer each account for 15% of the material mass, and the middle fiber layer accounts for 70% of the material mass.

[0095] A kind of preparation method of cotton fiber flushable material, adopts such as figure 2 The device shown comprises the following steps:

[0096] 1. Preparation of chopped cotton fibers

[0097] The cotton fiber is sent to the cotton opening and cleaning machine to open and remove impurities; ...

Embodiment 2

[0110] A plant fiber flushable material with a mass per unit area of ​​30g / m 2 , including the upper, middle and lower fiber layers that are superimposed and connected to each other; the upper fiber layer and the lower fiber layer are composed of chopped hemp fibers with an average length of 8 mm; the middle fiber layer is composed of hemp fiber pulp with an average length of 2 mm, and the average Composed of cotton pulp with a length of 2.3 mm; the fibers in the upper, middle and lower layers are entangled with each other. Wherein the upper fiber layer and the lower fiber layer each account for 20% of the material mass, and the middle fiber layer accounts for 60% of the material mass.

[0111] A preparation method for a hemp plant fiber flushable material, comprising the following steps:

[0112] 1. Preparation of chopped hemp fiber

[0113]Send the hemp fiber into the cotton opening and cleaning machine to loosen and remove impurities; then send the opened fiber to the car...

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Abstract

The invention relates to the field of non-woven materials, and discloses a plant fiber dispersible material and a preparation method thereof. The plant fiber dispersible material comprises an upper fiber layer (1), a middle fiber layer (2) and a lower fiber layer (3) which are mutually entangled and overlapped, wherein the average length of fibers in the upper fiber layer and the lower fiber layeris greater than the average length of fibers in the middle fiber layer; raw materials of the upper fiber layer and the lower fiber layer comprise chopped plant fibers and / or plant fiber linters; andraw materials of the middle fiber layer comprise plant fiber pulp. According to the invention, natural plant fibers are used as main raw materials, and the plant fiber dispersible material which is high in wet strength, soft in hand feeling and low in scrap falling amount can be prepared through a special wet spunlace non-woven process.

Description

technical field [0001] The invention relates to the field of nonwoven materials, in particular to a plant fiber flushable material and a preparation method thereof. Background technique [0002] Wet toilet paper is an emerging flushable wet toilet paper. Compared with ordinary traditional toilet paper, its cleanliness and comfort have been gradually recognized by consumers, and it is becoming a revolutionary new product in the toilet paper industry, and will become an essential household hygiene product for families pursuing quality of life. [0003] At present, the flushable materials used in the production of wet toilet paper on the market are generally made by wet spunlace technology, and the main components are wood pulp and artificial cellulose fibers, and most of the artificial cellulose fibers are viscose fibers. Its mass ratio can reach about 50%. [0004] CN201811343535.3 discloses a production process of non-woven fabrics for flushable toilets, including raw mate...

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): D21F11/04D21H11/12D21H15/02D21B1/02D21C5/00D04H1/492A47K10/16
CPCD21F11/04D21H11/12D21H15/02D21B1/021D21C5/00D04H1/492A47K10/16
Inventor 张杰佘卫军张国炎
Owner HANGZHOU NBOND NONWOVENS
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