CN114934404A - Easily-flushed plant fiber mask base cloth and preparation method and application thereof - Google Patents

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

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Publication number
CN114934404A
CN114934404A CN202210606930.6A CN202210606930A CN114934404A CN 114934404 A CN114934404 A CN 114934404A CN 202210606930 A CN202210606930 A CN 202210606930A CN 114934404 A CN114934404 A CN 114934404A
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China
Prior art keywords
base cloth
mask base
plant fiber
pulp
water
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CN202210606930.6A
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CN114934404B (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 plant fiber mask base cloth easy to dissolve and disperse, and a preparation method and application thereof. The preparation method comprises the following steps: (1) respectively adding the dissolving pulp and the cotton linter into water, and pulping after mechanical defibering to obtain the dissolving pulp and the cotton pulp with the pulping degree of 25-35 DEG SR; uniformly mixing the dissolved pulp and the cotton pulp, and then carrying out paper making treatment to obtain wet paper sheets; spraying the water-based adhesive glue on the surface of the wet paper sheet, and naturally drying to obtain a dry paper sheet; (2) and (3) soaking the dry paper sheets in a cross-linking agent solution, taking out the dry paper sheets, and carrying out through-air drying on the dry paper sheets to obtain the easily-dispersed plant fiber mask base cloth. According to the invention, the plant fibers with different fibrosis degrees are mixed in proportion and made into paper, 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 aspect.

Description

Easily-flushed 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 disperse, and a preparation method and application thereof.
Background
The mask is a common category of daily skin care products, and the mask base cloth is an important carrier of the mask. The mask base cloth has the important functions of temporarily locking the moisture and the essence, and enabling the water and the essence to play the roles of moisturizing and cleaning the face when the mask base cloth is in contact with the face. Common mask base cloth on the market at present comprises non-woven fabric base cloth, tencel base cloth, silk base cloth and the like. With the increase of variety and the improvement of the consumption level of people, the degradable, safe and environment-friendly mask base cloth with high water absorption rate and high liquid holding rate is favored by consumers.
The plant fiber as natural organic high molecular compound has wide source, great storage capacity and other features, and the cellulose source includes plant, microbe and marine life. In addition, the cellulose has excellent degradability, biocompatibility, water absorbability 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 absorption, and the existence of surface hydroxyl provides theoretical basis for stable crosslinking of plant fiber, PVA and polysaccharide.
Chinese patent No. CN202011013368.3 discloses a one-way water guide mask base material and a preparation method thereof, wherein the method comprises the steps of compounding hydrophobic modified polyester fibers, chitosan modified polyvinyl alcohol fibers and viscose fibers, and obtaining a three-layer mask base fabric through a spunlace method. Chinese patent No. CN201810349504.2 discloses a bamboo charcoal viscose fiber facial mask base fabric, which is obtained by a wet spinning method. Chinese patent No. CN201810601001.X discloses a wheat straw fiber non-woven mask base cloth, and the method takes wheat straws as raw materials and designs a non-woven mask base cloth which is degradable, and has good liquid holding capacity and air permeability. Chinese patent application with the patent number of CN202010546828.2 discloses a preparation method of mask base cloth, which comprises the steps of preparing modified fibers and preparing blended fiber base cloth. Although the fiber facial mask achieves a certain beautifying effect, the facial mask base cloth is mostly modified fibers, which may induce allergic reaction of consumers and is difficult to degrade quickly in a short time. Therefore, the development of the pure natural plant fiber mask base cloth which is simple, high in water absorption, high in liquid holding rate and free of skin irritation has important practical significance and commercial value.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a preparation method of a plant fiber mask base cloth easy to dissolve.
The invention also aims to provide the easily-flushable plant fiber mask base cloth prepared by the method.
The invention further aims to provide application of the easily-dispersed plant fiber mask base cloth.
The purpose of the invention is realized by the following technical scheme:
a preparation method of a plant fiber mask base cloth easy to disperse comprises the following steps:
(1) respectively adding the dissolving pulp and the cotton linters into water, and pulping after mechanical defibering to obtain the dissolving pulp and the cotton pulp with the pulping degrees of 25-35 DEG SR; uniformly mixing the dissolving pulp and the cotton pulp to obtain a suspension; then, carrying out paper making treatment on the suspension to obtain wet paper sheets; spraying the water-based adhesive glue on the surface of the wet paper sheet, and naturally drying to obtain a dry paper sheet; wherein the water-based adhesive glue is one or more of low-ammonia natural latex, high-solid styrene-butadiene latex and ethylene-vinyl acetate resin (EVA);
(2) soaking the dry paper obtained in the step (1) in a cross-linking agent solution, taking out, and carrying out through-air drying on the dry paper to obtain the easily-dispersed plant fiber mask base cloth; wherein the cross-linking agent is one or more of polyvinyl alcohol, konjac flour, xanthan gum, carboxymethyl cellulose, carrageenan, gelatin, polylactic acid and starch.
The dosage of the dissolving pulp in the step (1) is calculated according to the proportion of 1-3 g of dissolving pulp per liter of water; preferably 2g of dissolving pulp per litre of water.
The dosage of the cotton linters in the step (1) is calculated according to the proportion of 1-3 g of cotton per liter of water; preferably 2g cotton per litre water mix.
The mechanical defibering in the step (1) is performed by adopting a wary beater under the condition of not hanging heavy objects.
The mechanical defibering time in the step (1) is 5-8 min; preferably 6 min.
The beating treatment in the step (1) is carried out by adopting a PFI beating machine.
The beating degree of the dissolving pulp in the step (1) is preferably 30 DEG SR.
The beating degree of the cotton pulp in the step (1) is preferably 30 degrees SR.
The length of the beaten cotton pulp in the step (1) is 0.50-10.00 mu m (preferably 1.99 mu m), the width is 10.00-40.00 mu m (preferably 30.80 mu m), the thickness is 0.05-0.20 mg/m (preferably 0.15mg/m), the kinked fiber content is 2.00-60.00% (preferably 46.10%), the devillicate brooming length ratio is 0.50-5.00% (preferably 3.54%), and the fine fiber length ratio is 3.00-55.00% (preferably 47.71%).
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 the step (1) is a thermoplastic resin obtained by copolymerizing ethylene and vinyl acetate, and can be obtained by conventional commercial methods.
The aqueous adhesive glue in the step (1) is preferably low-ammonia natural latex, high-ammonia natural latex or high-solid styrene-butadiene latex; further preferably low ammonia natural latex or high ammonia natural latex; still more preferably low ammonia natural latex.
The paper making process in the step (1) is a paper making process by adopting a rapid Kaiser paper forming machine.
The spraying amount (single side) of the water-based adhesive glue in the step (1) is 0.1-26 g/m 2 (ii) a Preferably 0.1 to 13g/m 2 (ii) a Further preferably 12 to 13g/m 2 。
The dry paper sheet in the step (1) has the basis weight of 20.00-50.00 g/m 2 (ii) a Preferably 25.00-40.00 g/m 2 (ii) a More preferably 35.00 to 40.00g/m 2 。
The dipping time in the step (2) is 1-2 min; preferably for 1 min.
The concentration (solid content) of the cross-linking agent solution in the step (2) is 1-1.5% by mass; preferably 1.25% by mass.
The cross-linking agent in the step (2) is preferably composed of polyvinyl alcohol, konjac 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, konjac flour, xanthan gum and carboxymethyl cellulose in a mass ratio of 1:3:2: 4.
The polyvinyl alcohol in the 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 through-air 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 quantitative amount of the easily-dispersed plant fiber mask base cloth in the step (2) is 30.00-60.00 g/m 2 (ii) a Preferably 30.00-45.00 g/m 2 。
An easily-flushed plant fiber facial mask base cloth is prepared by any one of the methods.
The plant fiber mask base cloth easy to disperse is applied to preparation of 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 preparation method of simple, green and easily-flushable plant fiber mask base cloth, which adopts a two-step method to prepare the plant fiber mask base cloth: dissolving pulp and cotton linters serving as raw materials, soaking the pulp in water for sufficient swelling, defibering the pulp by using a Bupley beater under the condition of not hanging heavy objects to obtain defibered pulp, and beating the defibered pulp to obtain the dissolved pulp (short fibers) and cotton pulp (long fibers), namely the plant fibers with the fine fibers; then mixing plant fibers with different fibrosis degrees in proportion, carrying out paper making treatment on the uniformly mixed suspension to obtain a wet paper sheet, spraying water-based adhesive glue on the surface of the wet paper sheet, and naturally airing to obtain a dry paper sheet; and (3) soaking the obtained dry paper in a cross-linking agent solution, taking out, putting in an oven, and performing through-air drying on the paper to obtain the plant fiber mask base cloth.
(2) According to the invention, the plant fiber facial mask base cloth is prepared by mixing the plant fiber, the water-based adhesive and the cross-linking agent by adopting a two-step method, the defect of poor deformation of the plant fiber paper in the prior art is overcome, the prepared plant fiber facial mask base cloth has high wet tensile strength and wet tensile deformation, and the defect of poor facial adaptability of the plant fiber paper is overcome.
(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 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, and shows the easy dispersion performance.
Drawings
FIG. 1 is an optical photograph of the dispersion of a plant fiber mask base cloth prepared by the present invention compared with a commercial non-woven fabric mask; wherein A is the base cloth of the plant fiber mask prepared by the invention; b is a pure cotton non-woven fabric mask base cloth sold in the market; c is a commercial compressed non-woven fabric mask base fabric.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto. Reagents, methods and apparatus used in the present invention are conventional in the art unless otherwise indicated. The following examples are given without reference to specific experimental conditions, and are generally in accordance with conventional experimental conditions. Unless otherwise specified, reagents and starting materials for use in the present invention are commercially available.
The plant fiber paper in the examples and the comparative examples of the present invention was obtained by a rapid kaiser sheet-forming machine.
The wet tensile strength and wet elongation of the paper sheets in the examples and comparative examples of the present invention were directly measured by a horizontal tensile strength tester (ZY-L-W); wherein, the width of the sample to be tested is 15mm, the measuring range of the sensor of the measuring instrument is 50N, and the test is started after the input quantification 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 Vida group, respectively.
In the embodiment of the invention, the length of the cotton pulp obtained after beating the cotton linters 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 devillicate brooming length ratio is 0.50-5.00%, and the length ratio of fine fibers is 3.00-55.00%.
The aqueous adhesive glues (low ammonia natural rubber latex, high solid styrene-butadiene rubber latex) referred to in the examples of the present invention were purchased from Shanghai national trade company, Inc.
The type 1788 polyvinyl alcohol, konjac flour, xanthan gum and carboxymethyl cellulose referred to in the examples and comparative examples of the present invention can be obtained by conventional commercial methods.
Example 1
A preparation method of simple, green and easily-flushable plant fiber mask base cloth comprises the following steps:
(1) respectively adding 20g of dissolving pulp and 20g of cotton linters into 10L of water, fully defibering for 6min by using a Wahler beater without hanging a heavy object, beating the dissolving pulp and the cotton linters by PFI beating (the same applies below) to obtain the dissolving pulp and the cotton linters with the beating degree of 30 DEG SR, and obtaining the plant fibers with fine fibers; wherein, the length of the beaten cotton pulp is 1.99 μm, the width is 30.80 μm, the thickness is 0.15mg/m, the kinked fiber content is 46.10%, the devillicate fibrillation length ratio is 3.54%, and the fine fiber length ratio is 47.71%. Then mixing plant fibers with different fibrillation degrees in proportion (cotton pulp: dissolving pulp is 8:2, mass ratio) to obtain a suspension; carrying out blending treatment on the uniformly mixed suspension by using a rapid Kaiser paper forming machine to obtain wet paper; spraying the low-ammonia natural latex to the surface of the paper by using a spray gun (single-side spraying), wherein the single-side spraying amount is 12.71g/m 2 And the quantitative content obtained after natural drying is 37.48g/m 2 The dry paper sheet of (1);
(2) mixing 1788 type polyvinyl alcohol, konjac flour, xanthan gum and carboxymethyl cellulose according to the mass ratio of 1:3:2:4, adding into water, and stirring and mixing uniformly to obtain a cross-linking agent water solution with the solid content of 1.25 wt%; then, the dry paper obtained in the step (1) is soaked in a cross-linking agent solution for 1min, taken out and placed in a 60 ℃ oven to be subjected to through-air drying for 6h to obtain the quantitative 43.23g/m 2 The plant fiber mask base cloth.
Example 2
A preparation method of simple, green and easily-flushable plant fiber mask base cloth comprises the following steps:
(1) adding 20g of dissolving pulp and 20g of cotton linters into 10L of water, respectively, and filling with a Wahler beater without hanging heavy objectsAfter the defibering is carried out for 6min, pulping is carried out to obtain dissolved pulp and cotton pulp with the beating degree of 30 DEG SR; wherein, the length of the beaten cotton pulp is 1.99 μm, the width is 30.80 μm, the thickness is 0.15mg/m, the kinked fiber content is 46.10%, the devillicate fibrillation length ratio is 3.54%, and the length ratio of the fine fiber is 47.71%. Then mixing plant fibers with different fibrosis degrees in proportion (cotton pulp: dissolving pulp is 8:2, mass ratio) to obtain suspension; carrying out blending treatment on the uniformly mixed suspension by using a rapid Kaiser paper forming machine to obtain wet paper; spraying the high-ammonia natural latex onto the surface of the paper by using a spray gun (single-side spraying), wherein the single-side spraying amount is 12.04g/m 2 And the quantitative content of the product is 36.81g/m after natural drying 2 The dry paper sheet of (1);
(2) mixing 1788 type polyvinyl alcohol, konjac flour, xanthan gum and carboxymethyl cellulose according to the mass ratio of 1:3:2:4, adding the mixture into water, and uniformly stirring and mixing to obtain a cross-linking agent aqueous solution with the solid content of 1.25 wt%; then, the dry paper obtained in the step (1) is soaked in a cross-linking agent solution for 1min, taken out and placed in a 60 ℃ oven to be subjected to through-air drying for 6h to obtain the quantitative 41.15g/m 2 The plant fiber mask base cloth.
Example 3
A preparation method of simple, green and easily-flushable plant fiber mask base cloth comprises the following steps:
(1) respectively adding 20g of dissolving pulp and 20g of cotton linters into 10L of water, fully defibering for 6min by using a Wahler beater without hanging heavy objects, and beating to obtain the dissolving pulp and the cotton pulp with beating degree of 30 DEG SR; wherein, the length of the beaten cotton pulp is 1.99 μm, the width is 30.80 μm, the thickness is 0.15mg/m, the kinked fiber content is 46.10%, the devillicate fibrillation length ratio is 3.54%, and the length ratio of the fine fiber is 47.71%. Then mixing plant fibers with different fibrosis degrees in proportion (cotton pulp: dissolving pulp is 8:2, mass ratio) to obtain suspension; carrying out blending treatment on the uniformly mixed suspension by using a rapid Kaiser paper forming machine to obtain wet paper; spraying high-solid styrene-butadiene latex onto the surface of the paper by a spray gun (single-side spraying), wherein the single-side spraying is carried outThe amount was 12.21g/m 2 And the quantitative content obtained after natural drying is 37.21g/m 2 The dry paper sheet of (1);
(2) mixing 1788 type polyvinyl alcohol, konjac flour, xanthan gum and carboxymethyl cellulose according to the mass ratio of 1:3:2:4, adding into water, and stirring and mixing uniformly to obtain a cross-linking agent water solution with the solid content of 1.25 wt%; then, the dry paper obtained in the step (1) is soaked in a cross-linking agent solution for 1min, then taken out and placed in a 60 ℃ oven to be subjected to through-air drying for 6h to obtain the paper with the quantitative of 42.35g/m 2 The plant fiber mask base cloth.
Example 4
A preparation method of simple, green and easily-flushable plant fiber mask base cloth comprises the following steps:
(1) respectively adding 20g of dissolving pulp and 20g of cotton linters into 10L of water, sufficiently defibering for 6min by using a wary beater under the condition of not hanging heavy objects, and beating the dissolving pulp and the cotton linters to obtain the dissolving pulp and the cotton pulp with beating degree of 30 DEG SR; wherein, the length of the beaten cotton pulp is 1.99 μm, the width is 30.80 μm, the thickness is 0.15mg/m, the kinked fiber content is 46.10%, the devillicate fibrillation length ratio is 3.54%, and the length ratio of the fine fiber is 47.71%. Then mixing plant fibers with different fibrosis degrees in proportion (cotton pulp: dissolving pulp is 8:2, mass ratio) to obtain suspension; carrying out blending treatment on the uniformly mixed suspension by using a rapid Kaiser paper forming machine to obtain wet paper; spraying the high-solid styrene-butadiene latex onto the surface of the paper by using a spray gun (single-side spraying), wherein the single-side spraying amount is 0.23g/m 2 And the quantitative content is 25.06g/m after natural drying 2 The dry paper sheet of (1);
(2) mixing 1788 type polyvinyl alcohol, konjac flour, xanthan gum and carboxymethyl cellulose according to the mass ratio of 1:3:2:4, adding into water, and stirring and mixing uniformly to obtain a cross-linking agent water solution with the solid content of 1.25 wt%; then, the dried paper obtained in the step (1) is soaked in a cross-linking agent solution for 1min, then taken out and placed in a 60 ℃ oven to be subjected to through-air drying for 6h to obtain the paper with the quantitative of 33.15g/m 2 The plant fiber mask base cloth.
Example 5
A preparation method of simple, green and easily-flushable plant fiber mask base cloth comprises the following steps:
(1) respectively adding 20g of dissolving pulp and 20g of cotton linters into 10L of water, fully defibering for 6min by using a Wahler beater without hanging heavy objects, and beating to obtain the dissolving pulp and the cotton pulp with beating degree of 30 DEG SR; wherein, the length of the beaten cotton pulp is 1.99 μm, the width is 30.80 μm, the thickness is 0.15mg/m, the kinked fiber content is 46.10%, the devillicate fibrillation length ratio is 3.54%, and the length ratio of the fine fiber is 47.71%. Then mixing plant fibers with different fibrosis degrees in proportion (cotton pulp: dissolving pulp is 8:2, mass ratio) to obtain suspension; carrying out blending treatment on the uniformly mixed suspension by using a rapid Kaiser paper forming machine to obtain wet paper; spraying the high-solid styrene-butadiene latex onto the surface of the paper by using a spray gun (single-side spraying), wherein the single-side spraying amount is 0.94g/m 2 And the quantitative content obtained after natural drying is 25.77g/m 2 The dry paper sheet of (1);
(2) mixing 1788 type polyvinyl alcohol, konjac flour, xanthan gum and carboxymethyl cellulose according to the mass ratio of 1:3:2:4, adding the mixture into water, and uniformly stirring and mixing to obtain a cross-linking agent aqueous solution with the solid content of 1.25 wt%; then, the dry paper obtained in the step (1) is soaked in a cross-linking agent solution for 1min, then taken out and placed in a 60 ℃ oven to be subjected to through-air drying for 6h to obtain the paper with the quantitative of 32.77g/m 2 The plant fiber mask base cloth.
Example 6
A preparation method of simple, green and easily-flushable plant fiber mask base cloth comprises the following steps:
(1) respectively adding 20g of dissolving pulp and 20g of cotton linters into 10L of water, fully defibering for 6min by using a Wahler beater without hanging heavy objects, and beating to obtain the dissolving pulp and the cotton pulp with beating degree of 30 DEG SR; wherein, the length of the beaten cotton pulp is 1.99 μm, the width is 30.80 μm, the thickness is 0.15mg/m, the kinked fiber content is 46.10%, the devillicate fibrillation length ratio is 3.54%, and the fine fiber length ratio is 47.71%. Then taking plant fibers with different fibrosis degrees according to the proportionMixing (cotton pulp: dissolving pulp: 8:2, mass ratio) to obtain a suspension; carrying out blending treatment on the uniformly mixed suspension by using a rapid Kaiser paper forming machine to obtain wet paper; spraying the high-solid styrene-butadiene latex onto the surface of paper by a spray gun (single-side spraying), wherein the single-side spraying amount is 1.45g/m 2 Naturally drying to obtain the quantitative content of 26.28g/m 2 The dry paper sheet of (1);
(2) mixing 1788 type polyvinyl alcohol, konjac flour, xanthan gum and carboxymethyl cellulose according to the mass ratio of 1:3:2:4, adding into water, and stirring and mixing uniformly to obtain a cross-linking agent water solution with the solid content of 1.25 wt%; then, the dried paper obtained in the step (1) is soaked in a cross-linking agent solution for 1min, then taken out and placed in a 60 ℃ oven to be subjected to through-air drying for 6h to obtain the paper with the quantitative of 34.29g/m 2 The plant fiber mask base cloth.
Comparative example 1
A preparation method of a plant fiber mask base cloth comprises the following steps:
respectively adding 20g of dissolving pulp and 20g of cotton into 10L of water, sufficiently defibering for 6min by using a Wahler beater under the condition of not hanging a heavy object, and beating the dissolving pulp and the cotton pulp to obtain the dissolving pulp and the cotton pulp with the beating degree of 30-degree SR; wherein, the length of the beaten cotton pulp is 1.99 μm, the width is 30.80 μm, the thickness is 0.15mg/m, the kinked fiber content is 46.10%, the devillicate fibrillation length ratio is 3.54%, and the length ratio of the fine fiber is 47.71%. Then mixing plant fibers with different fibrosis degrees in proportion (cotton pulp: dissolving pulp is 8:2, mass ratio) to obtain suspension; then, the evenly mixed suspension is subjected to paper making treatment by using a rapid Kaiser paper forming machine to obtain wet paper, and the wet paper is naturally dried to obtain paper with the ration of 24.96g/m 2 The plant fiber mask base cloth.
Comparative example 2
A preparation method of a plant fiber mask base cloth comprises the following steps:
(1) respectively adding 20g of dissolving pulp and 20g of cotton into 10L of water, sufficiently defibering for 6min by using a Wahler beater under the condition of not hanging heavy objects, beating to obtain the dissolving pulp with the beating degree of 30 DEG SR and the dissolving pulpCotton pulp; wherein, the length of the beaten cotton pulp is 1.99 μm, the width is 30.80 μm, the thickness is 0.15mg/m, the kinked fiber content is 46.10%, the devillicate fibrillation length ratio is 3.54%, and the length ratio of the fine fiber is 47.71%. Then mixing plant fibers with different fibrosis degrees in proportion (cotton pulp: dissolving pulp is 8:2, mass ratio) to obtain suspension; then, the evenly mixed suspension is subjected to paper making treatment by using a rapid Kaiser paper forming machine to obtain wet paper, and the wet paper is naturally dried to obtain paper with the ration of 24.97g/m 2 The dry paper sheet of (1);
(2) mixing 1788 type polyvinyl alcohol, konjac flour, xanthan gum and carboxymethyl cellulose according to the mass ratio of 1:3:2:4, adding into water, and stirring and mixing uniformly to obtain a cross-linking agent water solution with the solid content of 1.25 wt%; then, the dry paper obtained in the step (1) is soaked in a cross-linking agent solution for 1min, taken out and placed in a 60 ℃ oven to be subjected to through-air drying for 6h to obtain the quantitative 28.78g/m 2 The plant fiber mask base cloth.
Effects of the embodiment
(1) And (3) testing the wet tensile strength and the wet elongation of the plant fiber mask base cloth obtained in the embodiment 1-6: the base cloth was cut into 15 mm-wide strips, and a mechanical strength test was performed using a tensile strength tester, and a vegetable fiber mask base cloth to which an aqueous binder and a crosslinking agent were not added (comparative example 1) and a vegetable fiber mask base cloth to which only a crosslinking agent was added (comparative example 2) were used as controls.
Table 1 shows the results of the wet tensile strength and wet elongation test of the base fabrics of the plant fiber masks 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% by adding the water-based adhesive and the cross-linking agent, wherein the wet tensile strength and the wet elongation of the plant fiber mask base cloth obtained in the example 1 are respectively 2.3 times and 2.8 times of those of the plant fiber mask base cloth obtained in the comparative examples 2.
TABLE 1 Wet tensile Strength and Wet elongation of the base cloth of plant fiber mask obtained in different examples
Figure BDA0003671732840000091
(2) The plant fiber mask base cloth prepared in the embodiment 1 of the invention is compared with a commercially available Amur pure cotton non-woven fabric mask base cloth (purchased from Tan warship shop, Tao Bao Shang Ming) and a Zhuoli Rankine-brand compressed non-woven fabric mask base cloth (purchased from Tao Mao Mei Fang) in flushability: in order to simulate the flushing and dispersing force of a toilet, a Jiuyang wall breaking machine (Y912C, maximum power 800W) is adopted, the wall breaking power is adjusted to be the lowest, and the decomposition conditions of different mask base cloths are observed after 2min of disintegration.
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, and the easy dispersion performance is shown.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.

Claims (10)

1. A preparation method of a plant fiber mask base cloth easy to dissolve is characterized by comprising the following steps:
(1) respectively adding the dissolving pulp and the cotton linters into water, and pulping after mechanical defibering to obtain the dissolving pulp and the cotton pulp with the pulping degrees of 25-35 DEG SR; uniformly mixing the dissolving pulp and the cotton pulp to obtain a suspension; then, carrying out paper making treatment on the suspension to obtain wet paper sheets; spraying the water-based adhesive glue on the surface of the wet paper sheet, and naturally drying to obtain a dry paper sheet; wherein the water-based adhesive glue is one or more of low-ammonia natural latex, high-solid styrene-butadiene latex and ethylene-vinyl acetate resin;
(2) soaking the dry paper obtained in the step (1) in a cross-linking agent solution, taking out, and carrying out through-air drying on the dry paper to obtain the easily-dispersed plant fiber mask base cloth; wherein the cross-linking agent is one or more of polyvinyl alcohol, konjac flour, xanthan gum, carboxymethyl cellulose, carrageenan, gelatin, polylactic acid and starch.
2. The preparation method of the easily dispersible plant fiber mask base cloth according to claim 1, which is characterized by comprising the following steps:
the aqueous adhesive in the step (1) is low-ammonia natural latex, high-ammonia natural latex or high-solid styrene-butadiene latex;
the cross-linking agent in the step (2) is composed of polyvinyl alcohol, konjac flour, xanthan gum and carboxymethyl cellulose.
3. The preparation method of the easily-flushable plant fiber mask base cloth according to claim 2, characterized by comprising the following steps:
the water-based adhesive in the step (1) is low-ammonia natural latex;
the cross-linking agent in the step (2) is obtained by mixing polyvinyl alcohol, konjac flour, xanthan gum and carboxymethyl cellulose according to a mass ratio of 1:3:2: 4;
the polyvinyl alcohol in the step (2) is 1788 type polyvinyl alcohol.
4. The method for preparing the easily dispersible plant fiber mask base cloth according to claim 1, which is characterized in that:
the length of the beaten cotton pulp 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 devillicate brooming length ratio is 0.50-5.00%, and the length ratio of fine fibers 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 spraying amount of the water-based adhesive in the step (1) is 0.1-26 g/m 2 ；
The concentration of the cross-linking agent solution in the step (2) is 1-1.5% by mass.
5. The preparation method of the easily dispersible plant fiber mask base cloth according to claim 4, characterized by comprising the following steps:
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 percent by mass.
6. The method for preparing the easily dispersible plant fiber mask base cloth according to claim 1, which is characterized in that:
the dosage of the dissolving pulp in the step (1) is calculated according to the proportion of 1-3 g 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 of cotton per liter of water;
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 degrees SR.
7. The method for preparing the easily dispersible plant fiber mask base cloth according to claim 1, which is characterized in that:
the dry paper sheet in the step (1) has a basis weight of 20.00-50.00 g/m 2 ；
The quantitative amount of the easily-dispersed plant fiber mask base cloth in the step (2) is 30.00-60.00 g/m 2 。
8. The method for preparing the easily dispersible plant fiber mask base cloth according to claim 1, which is characterized in that:
the mechanical defibering in the step (1) is performed by adopting a wary beater under the condition of not hanging heavy objects;
the mechanical defibering time in the step (1) is 5-8 min;
the dipping time in the step (2) is 1-2 min;
the conditions of the through-air drying in the step (2) are as follows: the temperature is 50-105 ℃, and the drying time is 6-12 h.
9. The easy-to-wash-and-disperse plant fiber mask base cloth is characterized in that: prepared by the method of any one of claims 1 to 8.
10. Use of the flushable plant fiber mask base fabric of claim 9 in the preparation of a mask base fabric or mask.
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1542223A (en) * 2003-02-07 2004-11-03 日本制纸株式会社 Surface paper of wall paper
US20140311696A1 (en) * 2013-04-17 2014-10-23 Sellars Absorbent Materials, Inc. Dispersible articles and methods of making the same
CN105463703A (en) * 2015-12-25 2016-04-06 常熟市飞龙无纺机械有限公司 Dispersible and degradable synthetic fiber spunlace nonwoven fabric and preparation method thereof
JP2018076637A (en) * 2018-01-10 2018-05-17 大王製紙株式会社 Water-disintegrable sheet and method for producing water-disintegrable sheet
CN108354853A (en) * 2018-05-17 2018-08-03 陕西科技大学 A kind of preparation method of moisturizing type antibacterial mite-removing paper substrate facial mask
KR102160364B1 (en) * 2019-10-29 2020-09-28 한종우 Water-dispersible fabric for manufacturing mask pack and its manufacturing method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1542223A (en) * 2003-02-07 2004-11-03 日本制纸株式会社 Surface paper of wall paper
US20140311696A1 (en) * 2013-04-17 2014-10-23 Sellars Absorbent Materials, Inc. Dispersible articles and methods of making the same
CN105463703A (en) * 2015-12-25 2016-04-06 常熟市飞龙无纺机械有限公司 Dispersible and degradable synthetic fiber spunlace nonwoven fabric and preparation method thereof
JP2018076637A (en) * 2018-01-10 2018-05-17 大王製紙株式会社 Water-disintegrable sheet and method for producing water-disintegrable sheet
CN108354853A (en) * 2018-05-17 2018-08-03 陕西科技大学 A kind of preparation method of moisturizing type antibacterial mite-removing paper substrate facial mask
KR102160364B1 (en) * 2019-10-29 2020-09-28 한종우 Water-dispersible fabric for manufacturing mask pack and its manufacturing method

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