CN114934404B - Easily-dispersed plant fiber mask base cloth and preparation method and application thereof - Google Patents

Easily-dispersed plant fiber mask base cloth and preparation method and application thereof Download PDF

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Publication number
CN114934404B
CN114934404B CN202210606930.6A CN202210606930A CN114934404B CN 114934404 B CN114934404 B CN 114934404B CN 202210606930 A CN202210606930 A CN 202210606930A CN 114934404 B CN114934404 B CN 114934404B
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China
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base cloth
mask base
plant fiber
pulp
water
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CN114934404A (en
Inventor
王斌
付浩成
李军
李金鹏
陈克复
丁霞
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China Paper Technology And Culture Development Jiangsu Co ltd
South China University of Technology SCUT
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China Paper Technology And Culture Development Jiangsu Co ltd
South China University of Technology SCUT
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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
    • D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
    • D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
    • D21H15/06—Long fibres, i.e. fibres exceeding the upper length limit of conventional paper-making fibres; Filaments
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/02—Material of vegetable origin
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
    • D21H17/24—Polysaccharides
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
    • D21H17/24—Polysaccharides
    • D21H17/25—Cellulose
    • D21H17/26—Ethers thereof
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/36—Polyalkenyalcohols; Polyalkenylethers; Polyalkenylesters
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/20—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper

Abstract

The invention discloses a vegetable fiber mask base cloth easy to break up, and a preparation method and application thereof. The preparation method comprises the following steps: (1) Respectively adding the dissolving pulp and the cotton linters into water, and pulping after mechanical fluffing to obtain the dissolving pulp and the cotton pulp with the pulping degree of 25-35 DEG SR; uniformly mixing the dissolving pulp and the cotton pulp, and performing papermaking treatment to obtain a wet paper sheet; spraying water-based adhesive on the surface of the wet paper page, and naturally airing to obtain a dry paper page; (2) And immersing the dry paper sheet in a cross-linking agent solution, taking out, and carrying out hot air penetration drying on the dry paper sheet to obtain the plant fiber mask base cloth easy to disperse. According to the invention, plant fibers with different fine fiber degrees are mixed and manufactured according to a proportion, and then the water-based adhesive and the cross-linking agent are introduced, so that the wet tensile strength and the wet tensile deformation of the mask base cloth are obviously improved, and the mask base cloth has the property of easy dispersion and can be used for the mask.

Description

Easily-dispersed plant fiber mask base cloth and preparation method and application thereof
Technical Field
The invention belongs to the field of skin care mask materials, and particularly relates to a plant fiber mask base cloth easy to break up, and a preparation method and application thereof.
Background
The facial mask is a common category in daily skin care products, and the facial mask base cloth is an important carrier of the facial mask. The mask base cloth has the important functions of temporarily locking water and essence, and enabling the water and the essence to play roles of moisturizing and cleaning the face when contacting the face. The common facial mask base cloth on the market at present comprises a non-woven fabric base cloth, a tencel base cloth, a silk base cloth and the like. With the increase of variety of mask base cloth and the improvement of consumption level of people, the degradable, safe and environment-friendly mask base cloth with high water absorption and high liquid holdup is more favored by consumers.
The plant fiber is used as natural organic polymer compound and has the features of wide source, great reserve, etc. and the cellulose source includes mainly plant, microbe and marine organism. In addition, cellulose has excellent degradability, biocompatibility, water absorption and high water retention value, and has considerable application prospect in the field of cosmetics. PVA and polysaccharide are easy to degrade, and have good biocompatibility and water absorbability, and the existence of surface hydroxyl groups provides theoretical basis for stable crosslinking of plant fibers, PVA and polysaccharide.
The Chinese patent with the patent number of CN202011013368.3 discloses a unidirectional water-guiding mask base material and a preparation method thereof. The Chinese patent with the patent number of CN201810349504.2 discloses a bamboo charcoal viscose fiber mask base cloth, and the method is used for obtaining the mask base cloth with high water locking and moisture preserving performances by a wet spinning method. The Chinese patent with the patent number of CN201810601001.X discloses a wheat straw fiber non-woven mask base cloth, which takes wheat straw as a raw material and designs a degradable non-woven mask base cloth with good liquid holding capacity and air permeability. The Chinese patent application with the patent number of CN202010546828.2 discloses a preparation method of a facial mask base fabric, which comprises the steps of preparing modified fibers and preparing a blended fiber base fabric. Although the fiber mask achieves a certain beautifying effect, most of the mask base cloth is modified fibers, so that allergic reaction of consumers can be induced, and quick degradation is difficult in a short time. Therefore, the development of the pure natural plant fiber mask base cloth which is simple, high in water absorbability, high in liquid holdup and free of skin irritation has important practical significance and commercial value.
Disclosure of Invention
The invention aims at overcoming the defects and shortcomings of the prior art and providing a preparation method of easily-dispersed plant fiber mask base cloth.
The invention further aims at providing the easily-dispersed plant fiber mask base cloth prepared by the method.
The invention also aims at providing application of the easily-dispersed plant fiber mask base cloth.
The aim of the invention is achieved by the following technical scheme:
a preparation method of a plant fiber mask base cloth easy to break up comprises the following steps:
(1) Respectively adding the dissolving pulp and the cotton linters into water, and pulping after mechanical fluffing to obtain the dissolving pulp and the cotton pulp with the pulping degree of 25-35 DEG SR; uniformly mixing dissolving pulp and cotton pulp to obtain suspension; then carrying out blending treatment on the suspension to obtain a wet paper sheet; spraying water-based adhesive on the surface of the wet paper page, and naturally airing to obtain a dry paper page; wherein the water-based adhesive is one or more of low-ammonia natural latex, high-solid styrene-butadiene latex and ethylene-vinyl acetate resin (EVA);
(2) Immersing the dried paper sheet obtained in the step (1) in a cross-linking agent solution, taking out the paper sheet, and performing hot air penetration drying on the paper sheet to obtain the easily-dispersed plant fiber mask base cloth; wherein the cross-linking agent is one or more of polyvinyl alcohol, konjaku flour, xanthan gum, carboxymethyl cellulose, carrageenan, gelatin, polylactic acid and starch.
The consumption of the dissolving pulp in the step (1) is calculated according to the water ratio of 1-3 g of dissolving pulp per liter; preferably 2g of dissolving pulp per liter of water.
The dosage of the cotton linters in the step (1) is calculated according to the proportion of 1-3 g cotton per liter of water; preferably 2g cotton per liter of water.
The mechanical disintegration in the step (1) is carried out by adopting a valance beater without hanging heavy objects.
The mechanical fluffing time in the step (1) is 5-8 min; preferably 6min.
The beating treatment in the step (1) is to adopt a PFI beating machine for beating treatment.
The freeness of the dissolving pulp in the step (1) is preferably 30 DEG SR.
The freeness of the cotton pulp in the step (1) is preferably 30 DEG SR.
The pulps obtained in the step (1) are each 0.50 to 10.00 μm (preferably 1.99 μm) in length, 10.00 to 40.00 μm (preferably 30.80 μm) in width, 0.05 to 0.20mg/m (preferably 0.15 mg/m) in thickness, 2.00 to 60.00% (preferably 46.10%) in kinked fiber content, 0.50 to 5.00% (preferably 3.54%) in fibrillated length ratio, and 3.00 to 55.00% (preferably 47.71%) in fine fiber length ratio.
The mass ratio of the cotton pulp to the dissolving pulp in the step (1) is (5:5) - (9:1); preferably 8:2.
The ethylene-vinyl acetate resin described in step (1) is a thermoplastic resin obtained by copolymerizing ethylene and vinyl acetate, and is commercially available conventionally.
The water-based adhesive in the step (1) is preferably low-ammonia natural latex, high-ammonia natural latex or high-solid styrene-butadiene latex; further preferred is a low ammonia natural latex or a high ammonia natural latex; still more preferred is a low ammonia natural latex.
The preparation process in the step (1) is carried out by adopting a rapid Kaiser paper sheet forming machine.
The spraying amount (single side) of the water-based adhesive in the step (1) is 0.1-26 g/m 2 The method comprises the steps of carrying out a first treatment on the surface of the Preferably 0.1 to 13g/m 2 The method comprises the steps of carrying out a first treatment on the surface of the Further preferably 12 to 13g/m 2 。
The basis weight of the dry paper sheet in the step (1) is 20.00-50.00 g/m 2 The method comprises the steps of carrying out a first treatment on the surface of the Preferably 25.00-40.00 g/m 2 The method comprises the steps of carrying out a first treatment on the surface of the Further preferably 35.00 to 40.00g/m 2 。
The soaking time in the step (2) is 1-2 min; preferably 1min.
The concentration (solid content) of the cross-linking agent solution in the step (2) is 1 to 1.5 percent by mass; preferably 1.25% by mass.
The cross-linking agent in the step (2) is preferably composed of polyvinyl alcohol, konjak flour, xanthan gum and carboxymethyl cellulose, and can enhance the water absorption and water retention of the plant fiber; more preferably, the crosslinking agent is obtained by mixing polyvinyl alcohol, konjak flour, xanthan gum and carboxymethyl cellulose according to a mass ratio of 1:3:2:4.
The polyvinyl alcohol in step (2) is preferably 1788 type polyvinyl alcohol.
The through-air drying described in step (2) is preferably carried out in an oven.
The conditions of the hot air penetrating drying in the step (2) are as follows: the temperature is 50-105 ℃ (preferably 60 ℃), and the drying time is 6-12 h (preferably 6 h).
The ration of the easily-dispersed plant fiber mask base cloth in the step (2) is 30.00-60.00 g/m 2 The method comprises the steps of carrying out a first treatment on the surface of the Preferably 30.00-45.00 g/m 2 。
The plant fiber mask base cloth easy to break up is prepared by the method of any one of the above.
The plant fiber mask base cloth easy to break up is applied to preparing the mask base cloth or the mask.
Compared with the prior art, the invention has the following advantages and effects:
(1) The invention provides a simple, green and easy-to-break plant fiber mask base cloth preparation method, which adopts a two-step method to prepare the plant fiber mask base cloth: taking dissolving pulp and cotton linters as raw materials, soaking the pulp in water to fully swell, then fluffing the pulp by using a tile Li Dajiang machine under the condition of not hanging heavy objects to obtain fluffed pulp, and pulping the fluffed pulp to obtain dissolving pulp (short fibers) and cotton pulp (long fibers), namely plant fibers with fine fibers; mixing plant fibers with different fine fiber degrees according to a proportion, carrying out mixing treatment on the uniformly mixed suspension to obtain a wet paper sheet, spraying aqueous adhesive glue on the surface of the wet paper sheet, and naturally airing to obtain a dry paper sheet; and immersing the obtained dry paper sheet in a cross-linking agent solution, taking out, and then placing the dry paper sheet in an oven for carrying out hot air penetration drying to obtain the plant fiber mask base cloth.
(2) The plant fiber mask base cloth is prepared by mixing the plant fiber, the water-based adhesive and the cross-linking agent by a two-step method, the defect of poor deformation of plant fiber paper in the prior art is overcome, and the prepared plant fiber mask base cloth has high wet tensile strength and wet tensile deformation and overcomes the defect of poor facial adaptability of the plant fiber paper.
(3) Compared with the plant fiber mask base cloth without the water-based adhesive and the cross-linking agent, the wet tensile strength and the wet deformation of the plant fiber mask base cloth prepared by the invention are respectively increased by 1-3 times and 0.5-3 times, the wet tensile strength can reach 116.00N/m, and the wet elongation can reach 14.66%.
(4) The plant fiber mask base cloth prepared by the invention can be easily dispersed under the action of low dispersion force, which shows that the plant fiber mask base cloth is easy to disperse.
Drawings
FIG. 1 is an optical photograph showing the comparison of the washout property of a plant fiber mask base fabric prepared by the invention and a commercial non-woven fabric mask; wherein A is the plant fiber mask base cloth prepared by the invention; b is commercially available pure cotton non-woven fabric mask base cloth; c is commercially available compressed non-woven fabric mask base cloth.
Detailed Description
The present invention will be described in further detail with reference to examples, but embodiments of the present invention are not limited thereto. Unless specifically stated otherwise, the reagents, methods and apparatus employed in the present invention are those conventional in the art. The experimental methods of the specific experimental conditions are not noted in the following examples, and generally follow the conventional experimental conditions. The reagents and starting materials used in the present invention are commercially available unless otherwise specified.
The vegetable fibre paper in the examples and comparative examples of the present invention was obtained by a rapid kesse sheet former.
The wet tensile strength and wet elongation of the papers in examples and comparative examples of the present invention were directly measured by a horizontal tensile strength tester (ZY-L-W); the width of the sample to be measured is 15mm, the measuring range of the sensor of the tester is 50N, and the test is started after the quantitative input is performed in the parameter setting.
The raw material dissolving pulp and cotton linters referred to in the examples and comparative examples of the present invention were purchased from the solar paper industry and the verda group, respectively.
The cotton pulp obtained after beating the cotton linters in the embodiment of the invention has the length of 0.50-10.00 mu m, the width of 10.00-40.00 mu m, the thickness of 0.05-0.20 mg/m, the content of kinked fibers of 2.00-60.00%, the fibrillation length ratio of 0.50-5.00% and the fine fiber length ratio of 3.00-55.00%.
The aqueous adhesive (low ammonia natural latex, high solid styrene-butadiene latex) referred in the examples of the present invention was purchased from Shanghai Tai adhesive International trade company.
The 1788 type polyvinyl alcohol, konjak flour, xanthan gum and carboxymethyl cellulose referred to in the examples and comparative examples of the present invention are commercially available by conventional methods.
Example 1
A simple, green and easy-to-break plant fiber mask base cloth preparation method comprises the following steps:
(1) Respectively adding 20g of dissolving pulp and 20g of cotton linters into 10L of water, fully fluffing for 6min by using a tile Li Dajiang machine under the condition of no heavy object hanging, and pulping (PFI pulping, the same applies below) to obtain dissolving pulp and cotton pulp with a pulping degree of 30 DEG SR, thus obtaining plant fibers with fine fibers; wherein, the length of the cotton pulp after beating is 1.99 mu m, the width is 30.80 mu m, the thickness is 0.15mg/m, the content of kinked fiber is 46.10%, the fibrillation length ratio is 3.54%, and the fine fiber length ratio is 47.71%. Mixing plant fibers with different fine fiber degree (cotton pulp: dissolving pulp) at a certain ratio=8:2, mass ratio) to give a suspension; carrying out blending treatment on the uniformly mixed suspension by using a rapid Kaiser paper sheet forming machine to obtain wet paper sheets; then spraying the low-ammonia natural latex on the surface of the paper (single-sided spraying) by using a spray gun, wherein the single-sided spraying amount is 12.71g/m 2 Naturally airing to obtain the product with the ration of 37.48g/m 2 Is a dry paper sheet;
(2) Mixing 1788-type polyvinyl alcohol, konjaku flour, xanthan gum and carboxymethyl cellulose according to the mass ratio of 1:3:2:4, adding the mixture into water, and stirring and mixing uniformly to obtain a cross-linking agent aqueous solution with the solid content of 1.25 wt%; then soaking the dried paper sheet obtained in the step (1) in a cross-linking agent solution for 1min, taking out the paper sheet, and putting the paper sheet in a 60 ℃ oven for carrying out hot air penetration drying for 6h to obtain the paper sheet with the quantitative value of 43.23g/m 2 Is a plant fiber mask base fabric.
Example 2
A simple, green and easy-to-break plant fiber mask base cloth preparation method comprises the following steps:
(1) Respectively adding 20g of dissolving pulp and 20g of cotton linters into 10L of water, fully fluffing for 6min by using a tile Li Dajiang machine under the condition of no heavy object hanging, and pulping to obtain dissolving pulp and cotton pulp with a pulping degree of 30 DEG SR; wherein, the length of the cotton pulp after beating is 1.99 mu m, the width is 30.80 mu m, the thickness is 0.15mg/m, the content of kinked fiber is 46.10%, the fibrillation length ratio is 3.54%, and the fine fiber length ratio is 47.71%. Then mixing plant fibers with different fine fibrosis degrees in proportion (cotton pulp: dissolving pulp=8:2, mass ratio) to obtain suspension; carrying out blending treatment on the uniformly mixed suspension by using a rapid Kaiser paper sheet forming machine to obtain wet paper sheets; spraying the high-ammonia natural latex onto the surface of paper (single-sided spraying) by using a spray gun, wherein the single-sided spraying amount is 12.04g/m 2 Naturally airing to obtain the quantitative value of 36.81g/m 2 Is a dry paper sheet;
(2) Mixing 1788-type polyvinyl alcohol, konjaku flour, xanthan gum and carboxymethyl cellulose according to the mass ratio of 1:3:2:4, adding the mixture into water, and stirring and mixing uniformly to obtain a cross-linking agent aqueous solution with the solid content of 1.25 wt%; then soaking the dry paper sheet obtained in the step (1)Soaking in cross-linking agent solution for 1min, taking out, and drying in oven at 60deg.C for 6 hr to obtain 41.15g/m 2 Is a plant fiber mask base fabric.
Example 3
A simple, green and easy-to-break plant fiber mask base cloth preparation method comprises the following steps:
(1) Respectively adding 20g of dissolving pulp and 20g of cotton linters into 10L of water, fully fluffing for 6min by using a tile Li Dajiang machine under the condition of no heavy object hanging, and pulping to obtain dissolving pulp and cotton pulp with a pulping degree of 30 DEG SR; wherein, the length of the cotton pulp after beating is 1.99 mu m, the width is 30.80 mu m, the thickness is 0.15mg/m, the content of kinked fiber is 46.10%, the fibrillation length ratio is 3.54%, and the fine fiber length ratio is 47.71%. Then mixing plant fibers with different fine fibrosis degrees in proportion (cotton pulp: dissolving pulp=8:2, mass ratio) to obtain suspension; carrying out blending treatment on the uniformly mixed suspension by using a rapid Kaiser paper sheet forming machine to obtain wet paper sheets; spraying high-solid styrene-butadiene latex on the surface of paper (single-sided spraying) by using a spray gun, wherein the single-sided spraying amount is 12.21g/m 2 Naturally airing to obtain the product with the ration of 37.21g/m 2 Is a dry paper sheet;
(2) Mixing 1788-type polyvinyl alcohol, konjaku flour, xanthan gum and carboxymethyl cellulose according to the mass ratio of 1:3:2:4, adding the mixture into water, and stirring and mixing uniformly to obtain a cross-linking agent aqueous solution with the solid content of 1.25 wt%; then soaking the dried paper sheet obtained in the step (1) in a cross-linking agent solution for 1min, taking out the paper sheet, and putting the paper sheet in a 60 ℃ oven for carrying out hot air penetrating drying for 6h to obtain the paper sheet with the ration of 42.35g/m 2 Is a plant fiber mask base fabric.
Example 4
A simple, green and easy-to-break plant fiber mask base cloth preparation method comprises the following steps:
(1) Respectively adding 20g of dissolving pulp and 20g of cotton linters into 10L of water, fully fluffing for 6min by using a tile Li Dajiang machine under the condition of no heavy object hanging, and pulping to obtain dissolving pulp and cotton pulp with a pulping degree of 30 DEG SR; which is a kind ofIn the method, the length of the pulped cotton pulp is 1.99 mu m, the width is 30.80 mu m, the thickness is 0.15mg/m, the content of kinked fibers is 46.10%, the fibrillation length ratio is 3.54%, and the fine fiber length ratio is 47.71%. Then mixing plant fibers with different fine fibrosis degrees in proportion (cotton pulp: dissolving pulp=8:2, mass ratio) to obtain suspension; carrying out blending treatment on the uniformly mixed suspension by using a rapid Kaiser paper sheet forming machine to obtain wet paper sheets; spraying high-solid styrene-butadiene latex on the surface of paper (single-sided spraying) by using a spray gun, wherein the single-sided spraying amount is 0.23g/m 2 Naturally airing to obtain the quantitative value of 25.06g/m 2 Is a dry paper sheet;
(2) Mixing 1788-type polyvinyl alcohol, konjaku flour, xanthan gum and carboxymethyl cellulose according to the mass ratio of 1:3:2:4, adding the mixture into water, and stirring and mixing uniformly to obtain a cross-linking agent aqueous solution with the solid content of 1.25 wt%; then soaking the dried paper sheet obtained in the step (1) in a cross-linking agent solution for 1min, taking out the paper sheet, and putting the paper sheet in a 60 ℃ oven for hot air penetrating and drying for 6h to obtain the paper sheet with the ration of 33.15g/m 2 Is a plant fiber mask base fabric.
Example 5
A simple, green and easy-to-break plant fiber mask base cloth preparation method comprises the following steps:
(1) Respectively adding 20g of dissolving pulp and 20g of cotton linters into 10L of water, fully fluffing for 6min by using a tile Li Dajiang machine under the condition of no heavy object hanging, and pulping to obtain dissolving pulp and cotton pulp with a pulping degree of 30 DEG SR; wherein, the length of the cotton pulp after beating is 1.99 mu m, the width is 30.80 mu m, the thickness is 0.15mg/m, the content of kinked fiber is 46.10%, the fibrillation length ratio is 3.54%, and the fine fiber length ratio is 47.71%. Then mixing plant fibers with different fine fibrosis degrees in proportion (cotton pulp: dissolving pulp=8:2, mass ratio) to obtain suspension; carrying out blending treatment on the uniformly mixed suspension by using a rapid Kaiser paper sheet forming machine to obtain wet paper sheets; spraying high-solid styrene-butadiene latex on the surface of paper (single-sided spraying) by using a spray gun, wherein the single-sided spraying amount is 0.94g/m 2 Naturally airing to obtain the product with the ration of 25.77g/m 2 Is a dry paper sheet;
(2) Mixing 1788-type polyvinyl alcohol, konjaku flour, xanthan gum and carboxymethyl cellulose according to the mass ratio of 1:3:2:4, adding the mixture into water, and stirring and mixing uniformly to obtain a cross-linking agent aqueous solution with the solid content of 1.25 wt%; then soaking the dried paper sheet obtained in the step (1) in a cross-linking agent solution for 1min, taking out the paper sheet, and putting the paper sheet in a 60 ℃ oven for carrying out hot air penetrating drying for 6h to obtain the paper sheet with the quantitative ratio of 32.77g/m 2 Is a plant fiber mask base fabric.
Example 6
A simple, green and easy-to-break plant fiber mask base cloth preparation method comprises the following steps:
(1) Respectively adding 20g of dissolving pulp and 20g of cotton linters into 10L of water, fully fluffing for 6min by using a tile Li Dajiang machine under the condition of no heavy object hanging, and pulping to obtain dissolving pulp and cotton pulp with a pulping degree of 30 DEG SR; wherein, the length of the cotton pulp after beating is 1.99 mu m, the width is 30.80 mu m, the thickness is 0.15mg/m, the content of kinked fiber is 46.10%, the fibrillation length ratio is 3.54%, and the fine fiber length ratio is 47.71%. Then mixing plant fibers with different fine fibrosis degrees in proportion (cotton pulp: dissolving pulp=8:2, mass ratio) to obtain suspension; carrying out blending treatment on the uniformly mixed suspension by using a rapid Kaiser paper sheet forming machine to obtain wet paper sheets; spraying high-solid styrene-butadiene latex on the surface of paper (single-sided spraying) by using a spray gun, wherein the single-sided spraying amount is 1.45g/m 2 Naturally airing to obtain the quantitative value of 26.28g/m 2 Is a dry paper sheet;
(2) Mixing 1788-type polyvinyl alcohol, konjaku flour, xanthan gum and carboxymethyl cellulose according to the mass ratio of 1:3:2:4, adding the mixture into water, and stirring and mixing uniformly to obtain a cross-linking agent aqueous solution with the solid content of 1.25 wt%; then soaking the dried paper sheet obtained in the step (1) in a cross-linking agent solution for 1min, taking out the paper sheet, and putting the paper sheet in a 60 ℃ oven for carrying out hot air penetration drying for 6h to obtain the paper sheet with the quantitative ratio of 34.29g/m 2 Is a plant fiber mask base fabric.
Comparative example 1
The preparation method of the plant fiber mask base cloth comprises the following steps:
respectively adding 20g of dissolving pulp and 20g of cotton into 10L of water, fully fluffing for 6min by using a tile Li Dajiang machine under the condition of no heavy object hanging, and pulping to obtain dissolving pulp and cotton pulp with a pulping degree of 30 DEG SR; wherein, the length of the cotton pulp after beating is 1.99 mu m, the width is 30.80 mu m, the thickness is 0.15mg/m, the content of kinked fiber is 46.10%, the fibrillation length ratio is 3.54%, and the fine fiber length ratio is 47.71%. Then mixing plant fibers with different fine fibrosis degrees in proportion (cotton pulp: dissolving pulp=8:2, mass ratio) to obtain suspension; then the evenly mixed suspension is matched and copied by a rapid Kaiser paper forming machine to obtain a wet paper, and the wet paper is naturally dried to obtain the paper with the ration of 24.96g/m 2 Is a plant fiber mask base fabric.
Comparative example 2
The preparation method of the plant fiber mask base cloth comprises the following steps:
(1) Respectively adding 20g of dissolving pulp and 20g of cotton into 10L of water, fully fluffing for 6min by using a tile Li Dajiang machine under the condition of no heavy object hanging, and pulping to obtain dissolving pulp and cotton pulp with a pulping degree of 30 DEG SR; wherein, the length of the cotton pulp after beating is 1.99 mu m, the width is 30.80 mu m, the thickness is 0.15mg/m, the content of kinked fiber is 46.10%, the fibrillation length ratio is 3.54%, and the fine fiber length ratio is 47.71%. Then mixing plant fibers with different fine fibrosis degrees in proportion (cotton pulp: dissolving pulp=8:2, mass ratio) to obtain suspension; then the evenly mixed suspension is matched and copied by a rapid Kaiser paper forming machine to obtain wet paper, and the wet paper is naturally dried to obtain the paper with the ration of 24.97g/m 2 Is a dry paper sheet;
(2) Mixing 1788-type polyvinyl alcohol, konjaku flour, xanthan gum and carboxymethyl cellulose according to the mass ratio of 1:3:2:4, adding the mixture into water, and stirring and mixing uniformly to obtain a cross-linking agent aqueous solution with the solid content of 1.25 wt%; then soaking the dried paper sheet obtained in the step (1) in a cross-linking agent solution for 1min, taking out the paper sheet, and putting the paper sheet in a 60 ℃ oven for carrying out hot air penetration drying for 6h to obtain the paper sheet with the quantitative ratio of 28.78g/m 2 Is a plant fiber mask base fabric.
Effect examples
(1) The vegetable fiber mask base cloths obtained in examples 1 to 6 were subjected to wet tensile strength and wet elongation test: the base fabric was cut into 15mm wide strips, and the mechanical strength test was performed using a tensile strength tester, with the plant fiber mask base fabric (comparative example 1) to which no aqueous adhesive and crosslinking agent were added and the plant fiber mask base fabric (comparative example 2) to which only the crosslinking agent was added as controls.
Table 1 shows the wet tensile strength and wet elongation test results of the plant fiber mask base fabrics prepared in examples 1 to 6. The results show that: compared with the plant fiber mask base cloth obtained in the comparative examples 1 and 2, the wet tensile strength and the wet elongation of the plant fiber mask base cloth obtained in the example 1 can reach 131.78N/m and 14.66%, wherein the wet tensile strength and the wet elongation of the plant fiber mask base cloth obtained in the example 1 are 2.3 times and 2.8 times respectively.
TABLE 1 physical properties such as wet tensile Strength and wet elongation of the plant fiber mask base cloth obtained in different examples
Figure BDA0003671732840000091
(2) The plant fiber mask base cloth prepared in the embodiment 1 of the invention is compared with the commercial soft cotton non-woven fabric mask base cloth (purchased from Taobao net brand make-up flagship store) and Zhuo Li Rankine compressed non-woven fabric mask base cloth (purchased from Taobao European and American make-up mill) in terms of flushability: in order to simulate the flushing and dispersing force of the toilet, a Jiuyang wall breaking machine (Y912C, maximum power 800W) is adopted, the power of the wall breaking machine is adjusted to be the lowest, and after the wall breaking machine is disintegrated for 2 minutes, the decomposition conditions of different mask base fabrics are observed.
The results are shown in FIG. 1: the result shows that the plant fiber mask base cloth can be easily dispersed within 2min under the action of low dispersion force, which shows the easy dispersion performance.
The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present invention should be made in the equivalent manner, and the embodiments are included in the protection scope of the present invention.

Claims (9)

1. The preparation method of the easily-dispersed plant fiber mask base cloth is characterized by comprising the following steps of:
(1) Respectively adding the dissolving pulp and the cotton linters into water, and pulping after mechanical fluffing to obtain the dissolving pulp and the cotton pulp with the pulping degrees of 25-35 DEG SR; uniformly mixing dissolving pulp and cotton pulp to obtain suspension; then carrying out blending treatment on the suspension to obtain a wet paper sheet; spraying water-based adhesive on the surface of the wet paper page, and naturally airing to obtain a dry paper page; wherein the water-based adhesive is low-ammonia natural latex or high-ammonia natural latex;
(2) Immersing the dried paper sheet obtained in the step (1) in a cross-linking agent solution, taking out the paper sheet, and performing hot air penetration drying on the paper sheet to obtain the easily-dispersed plant fiber mask base cloth; wherein the cross-linking agent consists of polyvinyl alcohol, konjaku flour, xanthan gum and carboxymethyl cellulose;
the spraying amount of the water-based adhesive in the step (1) is 0.1-26 g/m 2 。
2. The method for preparing the easily-dispersed plant fiber mask base cloth according to claim 1, which is characterized in that:
the water-based adhesive in the step (1) is low-ammonia natural latex;
the cross-linking agent in the step (2) is a cross-linking agent obtained by mixing polyvinyl alcohol, konjaku flour, xanthan gum and carboxymethyl cellulose according to the mass ratio of 1:3:2:4;
the polyvinyl alcohol in the step (2) is 1788 type polyvinyl alcohol.
3. The method for preparing the easily-dispersed plant fiber mask base cloth according to claim 1, which is characterized in that:
the length of the cotton pulp after pulping in the step (1) is 0.50-10.00 mu m, the width is 10.00-40.00 mu m, the thickness is 0.05-0.20 mg/m, the content of kinked fibers is 2.00-60.00%, the fibrillation length ratio is 0.50-5.00%, and the fine fiber length ratio is 3.00-55.00%;
the mass ratio of the cotton pulp to the dissolving pulp in the step (1) is 5:5-9:1;
the concentration of the cross-linking agent solution in the step (2) is 1-1.5% by mass.
4. The method for preparing the easily-dispersed plant fiber mask base cloth according to claim 3, which is characterized in that:
the mass ratio of the cotton pulp to the dissolving pulp in the step (1) is 8:2;
the spraying amount of the water-based adhesive in the step (1) is 12-13 g/m 2 ；
The concentration of the cross-linking agent solution in the step (2) is 1.25% by mass.
5. The method for preparing the easily-dispersed plant fiber mask base cloth according to claim 1, which is characterized in that:
the consumption of the dissolving pulp in the step (1) is calculated according to the water ratio of 1-3 g per liter;
the dosage of the cotton linters in the step (1) is calculated according to the water ratio of 1-3 g cotton linters per liter;
the beating degree of the dissolving pulp in the step (1) is 30 DEG SR;
the beating degree of the cotton pulp in the step (1) is 30 DEG SR.
6. The method for preparing the easily-dispersed plant fiber mask base cloth according to claim 1, which is characterized in that:
the basis weight of the dry paper sheet in the step (1) is 20.00-50.00 g/m 2 ；
The ration of the easily-dispersed plant fiber mask base cloth in the step (2) is 30.00-60.00 g/m 2 。
7. The method for preparing the easily-dispersed plant fiber mask base cloth according to claim 1, which is characterized in that:
the mechanical disintegration in the step (1) is carried out by adopting a valance beater under the condition of not hanging heavy objects;
the mechanical fluffing time in the step (1) is 5-8 min;
the soaking time in the step (2) is 1-2 min;
the conditions of the hot air penetrating drying in the step (2) are as follows: the temperature is 50-105 ℃, and the drying time is 6-12 h.
8. The utility model provides a vegetable fiber facial mask base cloth of easily punching up which characterized in that: prepared by the method of any one of claims 1 to 7.
9. The use of the easily-dispersed plant fiber mask base cloth according to claim 8 for preparing a mask.
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