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A kind of plant fiber flushable material and preparation method thereof

A technology of plant fiber and chopped plant fiber, applied in the field of non-woven materials, can solve the problems of product evenness, different fiber lengths, low wet strength, etc. , the effect of improving softness

Active Publication Date: 2022-07-12
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

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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  • A kind of plant fiber flushable material and preparation method thereof
  • A kind of plant fiber flushable material and preparation method thereof
  • A kind of plant fiber flushable material and preparation method thereof

Examples

Experimental program
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preparation example Construction

[0078] A preparation method of a 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 a cleaning machine with a sawtooth roller, and then the opened plant fibers are longitudinally arranged so that the curled plant fibers are combed. into a straight state and made into plant fiber strips; cut the plant fiber strips to make chopped plant fibers.

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

[0081] 3) Preparation of medium fiber layer slurry: adding water to the plant fiber pulp, stirring and disintegrati...

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 The fibers in the upper, middle and lower layers are entangled with each other. The upper fiber layer and the lower fiber layer each account for 15% of the material quality, and the middle fiber layer accounts for 70% of the material quality.

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

[0096] 1. Preparation of chopped cotton fiber

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

Embodiment 2

[0110] A plant fiber flushable material with a mass per unit area of ​​30g / m2 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 8mm; the middle fiber layer is composed of hemp fiber pulp with an average length of 2mm. It is composed of cotton pulp with a length of 2.3mm; the fibers in the upper, middle and lower layers are entangled with each other. The upper fiber layer and the lower fiber layer each account for 20% of the material quality, and the middle fiber layer accounts for 60% of the material quality.

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

[0112] 1. Preparation of chopped hemp fiber

[0113]The hemp fiber is sent to the opening and cleaning machine to open the fiber and remove impurities; then the opened fiber is sent to the carding machine...

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 relates to the field of non-woven materials, and discloses a plant fiber flushable material and a preparation method thereof. The plant fiber flushable material comprises an upper fiber layer (1) and a middle fiber layer (2) that are entangled and overlapped with each other. and a lower fiber layer (3); wherein the average length of fibers in the upper fiber layer and the lower fiber layer is greater than the average length of fibers in the middle fiber layer; the raw materials of the upper fiber layer and the lower fiber layer include chopped plant fibers and / or Plant fiber linters; the raw material of the middle fiber layer includes plant fiber pulp. The invention uses natural plant fiber as the main raw material, and through a special wet spunlace non-woven process, the plant fiber dispersable material with high wet strength, soft hand feeling and low chip removal can be obtained.

Description

technical field [0001] The invention relates to the field of non-woven materials, in particular to a plant fiber flushable material and a preparation method thereof. Background technique [0002] Wet toilet paper is a new type of 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 process. The main components are wood pulp and man-made cellulose fibers, and most of the man-made cellulose fibers are viscose fibers. Its mass ratio can reach about 50%. [0004] CN201811343535.3 discloses a production process of a non-woven fabric for flushing toilets, including raw material pre...

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 Patents(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