KR20180065982A - Method for manufacturing sanitary paper comprising particulate filler - Google Patents

Method for manufacturing sanitary paper comprising particulate filler Download PDF

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Publication number
KR20180065982A
KR20180065982A KR1020180036705A KR20180036705A KR20180065982A KR 20180065982 A KR20180065982 A KR 20180065982A KR 1020180036705 A KR1020180036705 A KR 1020180036705A KR 20180036705 A KR20180036705 A KR 20180036705A KR 20180065982 A KR20180065982 A KR 20180065982A
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South Korea
Prior art keywords
particulate filler
paper
lower layer
sanitary paper
filler
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KR1020180036705A
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Korean (ko)
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한상욱
홍승익
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(주)선진제지
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Priority to KR1020180036705A priority Critical patent/KR20180065982A/en
Publication of KR20180065982A publication Critical patent/KR20180065982A/en

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
    • A47K10/16—Paper towels; Toilet paper; Holders therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/01—Deodorant compositions
    • A61L9/012—Deodorant compositions characterised by being in a special form, e.g. gels, emulsions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/01—Deodorant compositions
    • A61L9/014—Deodorant compositions containing sorbent material, e.g. activated carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/10—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an adhesive surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
    • 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
    • D21H17/28—Starch
    • 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
    • D21H17/63—Inorganic compounds
    • D21H17/64—Alkaline compounds
    • 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
    • D21H17/63—Inorganic compounds
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • D21H17/68—Water-insoluble compounds, e.g. fillers, pigments siliceous, e.g. clays
    • 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
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/50—Spraying or projecting
    • 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
    • D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
    • D21H25/04—Physical treatment, e.g. heating, irradiating
    • D21H25/06—Physical treatment, e.g. heating, irradiating of impregnated or coated paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2203/00—Other substrates
    • B05D2203/22—Paper or cardboard

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Inorganic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Wood Science & Technology (AREA)
  • Materials Engineering (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Paper (AREA)

Abstract

The present invention relates to a method for producing sanitary paper such as toilet paper, napkin, and hand towel by containing particulate fillers, such as starch and kaolin clay, which is dry-dispersed, more specifically, thermoset-attached along with hot-melt powder. The sanitary paper products such as napkin, toilet paper, and hand towels produced by the production method can improve physical properties such as tensile strength, tear strength, thickness, basis weight, whiteness, and dust prevention.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a method for manufacturing a sanitary paper including a particulate filler,

The present invention relates generally to so-called flexible sanitary paper products such as napkins, toilet paper and hand towels, and to a method of manufacturing the same. The present invention relates to a process for attaching a particulate filler to a surface of the sanitary paper in a dry manner, Lt; RTI ID = 0.0 > sanitary < / RTI > paper.

Most people use hygienic paper products widely in their daily lives. These products are produced in a form suitable for each application such as toilet paper for toilet paper as well as absorbent towel, and are widely available commercially. Though the shapes of these products, namely basic weight (basis weight), thickness, strength, sheet size and distribution medium, can be different, they are mostly produced by similar manufacturing processes with similar paper pulp fabrics. However, as hygienic paper products are increasingly demanded by general consumers and the market for a combination of conflicting physical properties such as pleasant tactile feeling, softness and high strength, linting and dust prevention characteristics, It is necessary and necessary to add functionality by more research and technology than in the self-manufacturing process. It will be appreciated by those skilled in the art, however, that those skilled in the art will be able to substitute some of the paper pulp fabrics for sanitary papers and use fillers such as kaolin clay or calcium carbonate as a way to further impart these functionalities.

It is also known that there are considerable problems in applying the fillers to sanitary paper products, and it is also known that there are various limitations in the method of combining the fillers in the manufacturing process of paper pulp fabrics for sanitary paper production.

Therefore, in order to overcome the above-mentioned problems, the conventional sanitary paper manufacturing site has a problem in that the filler is adhered to the paper pulp fabric by dry or wet process, machine operation, thermal bonding or chemical agent, It is not only a problem that occurs normally in the above-mentioned sanitary paper manufacturing process but also has a property equivalent to or more than that of the existing product in terms of the shape stability, the elastic recovery rate and the compression rebound characteristics including the durability of the product manufactured after the process It is a fact that various attempts have been made to manufacture sanitary paper. Nevertheless, hygiene paper is a commonly used product and its production machines are very low cost, general purpose products that have to be manufactured at high speeds and mass produced.

Accordingly, the present invention has been made in view of the above problems, and it is an object of the present invention to provide a hygienic paper such as a toilet paper, a napkin, a hand towel, or the like which is thermally fused to a surface by dispersing a particulate filler such as kaolin clay and starch, A manufacturing method thereof is disclosed. The sanitary paper products such as napkins, toilet paper and hand towels manufactured by the above-described methods are expected to significantly improve physical properties such as tensile strength, tear strength, thickness, basis weight, whiteness and dust prevention, compared with conventional products.

As a solution to the problem to be solved by the present invention as described above, as shown in FIGS. 2 to 4, the lower layer hygienic paper is sandwiched between a pair of opposed rollers after the particulate filler dispersing step and the two hot- It is the first priority to pass the particulate filler through. It is also preferable to repeat the step of spraying the particulate filler and the step of spraying the second hot melt without finishing the first hot melt injection step. In addition, the particulate filler-dispersing device may include a hopper having a discharge port at a lower portion thereof filled with a particulate filler therein, and a discharge port provided at a lower end of the hopper, wherein the discharging port is rotatably provided with a height of 1 to 6 times the average particle size of the particulate filler Wherein the plurality of protrusions are disposed at intervals of 1 to 6 times the average particle diameter of the particulate filler. The height and the interval of the protrusions provided on the dispersion roller are preferably 2 to 4 times the average particle diameter of the particulate filler. In view of this, the lattice-shaped application roller disclosed in Korean Patent Publication No. 10-1156611 has a disadvantage in that uniformity of dispersion of the particulate filler is lowered due to the dropping onto the lower layer sanitary paper all at once after the particulate filler is filled in the filling defect of the application roller.

The present invention relates to a method for producing a sanitary paper such as a toilet paper, a napkin, a hand towel, etc., which is obtained by dispersing a particulate filler such as kaolin clay and starch with a hot melt powder and thermally fusing the same on the paper pulp fabric surface. The sanitary paper products such as napkins, toilet paper and hand towels manufactured by the above method have the effect of significantly improving physical properties such as tensile strength, tear strength, thickness, basis weight, whiteness and dust prevention.

1 is a process flow chart showing a method of manufacturing a sanitary paper according to the present invention,
2 is a schematic process diagram of a method for producing a sanitary paper according to the present invention,
3 is a schematic perspective view of a preferred particulate filler dispersing device and a lower inhalation device used in the step of dispersing particulate filler according to the method of manufacturing a sanitary paper according to the present invention,
4 is a cross-sectional view (A) of a preferred particulate filler dispersing device used in the step of dispersing particulate filler according to the method of producing a sanitary paper according to the present invention,
FIG. 5A is a front view of a suction plate included in a preferred suction apparatus according to a manufacturing method of the present invention in a process of a preferred step of dispersing a particulate filler according to a method of manufacturing a sanitary paper according to the present invention,
Figure 5b is a cross-sectional view of a preferred suction device according to the method of making a sanitary paper according to the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a method of manufacturing a sanitary paper according to the present invention will be described in detail with reference to the drawings, in which a microparticulate filler according to the present invention is dispersed on a surface thereof and then thermally fused.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms and the inventor may appropriately define the concept of the term in order to best describe its invention It should be construed as meaning and concept consistent with the technical idea of the present invention.

Hereinafter, a method of manufacturing a sanitary paper including a particulate filler according to the present invention will be described with reference to FIGS. 1 to 5 attached hereto.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a process flow chart showing a method for producing a sanitary paper comprising a particulate filler according to the present invention. Referring to FIG. 1, the sanitary papermaking machine includes a sanitary papermaking step (S01) for winding the wound sanitary papermill; A first hot melt injection step (S02) for injecting melted hot melt resin onto the upper surface of the sanitary paper; A particulate filler dispersing step (S03) for dispersing the particulate filler on the upper surface of the sanitary paper on which the hot melt resin is sprayed; A second hot melt injection step (S04) for injecting molten hot-melt resin onto the upper surface of the sanitary paper on which the particulate filler is dispersed; And a step of joining the lower layer hygienic paper and the upper layer hygienic paper before the pattern is applied by additionally supplying another hygienic paper to the upper surface of the hygienic paper on which the hot-melt resin is sprayed, S05).

In the method of manufacturing a sanitary paper according to the present invention, the particulate filler dispersing step (S02), which is a feature of the present invention, is performed through a particulate filler dispersing device (200) located on the lower layer sanitary paper (100) The particulate filler scattering apparatus 200 includes a hopper 210 filled with a particulate filler 299 according to the present invention and having an outlet at a lower portion thereof, a rotatably provided at the outlet, a particulate filler 299 disposed on an outer surface of the hopper 210, And a plurality of protrusions 221 having a height of 1 to 6 times the average particle diameter of the particulate filler 299 are arranged at intervals of 1 to 6 times the average particle diameter of the particulate filler 299, The microfine fillers 299 discharged from the discharge port of the lower layer sanitary paper 100 are filled between the plurality of protrusions 221 provided in the dispersion roller 220, That the particulate filler (299) is dropped evenly spraying is preferred. The height and spacing of the protrusions 221 provided in the dispersion roller 220 are preferably 2 to 4 times the average particle diameter of the particulate filler 299, respectively.

In the method of manufacturing a sanitary paper according to the present invention, the particulate filler dispersing step (S03) is performed through a particulate filler dispersing device (200) located on the lower layer sanitary paper, It is preferable that the particulate fillers 299 dispersed through the suction device 300 provided at the lower portion of the sanitary paper support 100 are seated on the upper surface of the sanitary paper support 100. More preferably, the suction device 300 includes a plurality of suction holes 310 and an outlet 320.

First, the lower layer-type sanitary paper 100 wound in a primary direction is pulled out. As described above, since the lower layer sanitary paper 100, which is a raw material for manufacturing the sanitary paper, is wound around the winding machine, it is taken out and used for the post-processing. The lower layer sanitary paper 100 additionally adds functionality according to the present invention and can be used as long as it is a papermaking fabric normally used for manufacturing sanitary paper.

2 is a schematic process drawing of the manufacturing method of the present invention. As the lower layer sanitary paper 100 is transported, a particulate filler dispersing device 200 is provided on the upper portion of the lower layer sanitary paper 100 so that the surface treatment of the lower layer sanitary paper 100 proceeds smoothly. So that the particulate filler 299 dispersed in the dispersing device 200 provided at the upper portion is uniformly and uniformly seated on the lower layer sanitary paper 100. Then, as shown in FIG. 2, molten hot-melt resin is firstly injected onto the upper surface of the lower layer sanitary paper 100 by a hot-melt injector. As the hot-melt resin, ethylene-vinyl acetate resin is well known. In the present invention, it is possible to use without any discrimination if the particulate filler 299 such as kaolin clay can be well fixed to the lower layer sanitary paper 100.

In addition, the apparatus and method for injecting melt of the hot melt resin are all well known in the art and can be used as long as they can spray melted hot melt resin.

Then, as shown in Fig. 2, the particulate filler 299 is dispersed on the upper surface of the lower layer sanitary paper 100 on which the hot-melt resin is sprayed. After the molten hot-melt resin is sprayed, the particulate filler 299 is contacted with the molten hot-melt resin as the particulate filler 299 is acidified, and as the molten hot-melt resin solidifies, the particulate filler 299 is transferred to the lower- And is evenly fixed on the surface of the paper 100. [

The particulate filler 299 uses particulate fillers selected from clay, calcium carbonate, titanium dioxide, talc, aluminum silicate, calcium silicate, alumina trihydrate, activated carbon, starch, calcium sulfate, diatomaceous earth and mixtures thereof. In addition, a particulate filler having a deodorizing function such as activated carbon, activated carbon powder impregnated with deodorant, nano-carbon balls in which a deodorant such as a transition metal is adhered to a nano-carbon ball composed of a spherical hollow core portion and a mesoporous carbon shell portion , A zeolite, an ionic species NH 4 type, a molar ratio of SiO 2 / Al 2 O 3 within a predetermined range, and a quaternary ammonium salt supported zeolite. It goes without saying that various functional materials such as encapsulated solid fragrance, anion emitting material, photocatalyst and the like may be dispensed with or in addition to the particulate filler 299 in addition to the above deodorizing functional material. It is preferable that the additional additives for adding the above functionality are contained within 5% by weight of the particulate filler 299.

Particularly preferred particulate fillers 299 in the present invention are kaolin clay and starch. First, kaolin clay is called china clay. Its main components are kaolinite Al 2 O 3 .2SiO 2 .2H 2 O and haloisite Al 2 O 3 .SiO 2 .4H 2 O. Feldspars such as feldspar, quartzite, soda feldspar, and feldspathic rock in rocks are produced by weathering, which is chemically decomposed by carbonic acid or water. A thick layer of several meters thick is formed on a rock with a generally protruding soil. It was used as a raw material of ceramics and it was called "aged" because it was produced in Gaolin (old age) of China. In Korea, it is often called white clay, and it produces a lot of white clay in the Hadong region of Gyeongnam Province. It is applied to packs with high-purity refined powder, and is effective for removing excellent skin wastes as well as Mud loess and bentonite. Most preferably it is calcined in the form of hydrated aluminum silicate of kaolin clay and is made of lime. The original kaolin texture is originally plate-like or blunt, but it is preferred to use a clay that has not been mechanically peeled off because the mechanical peel treatment tends to reduce the average particle size. The average particle size is usually referred to as the diameter of an equivalent sphere. The equivalent average diameter of the sphere is usually 0.2 μm or more, and it is usually convenient to use about 0.5 μm to 5 μm. Most preferably, however, the equivalent average diameter of the workpiece is about 1.0 μm or more.

And starch is a natural polymer whose molecular formula (C 6 H 12 O 6 ) n is polymerized by carbohydrate with a large number of α-glucose molecules by glycosidic bonds and has a very different property from glucose, which is a similar constituent unit. It is a natural product, and is included in many seeds and roots of plants. Crystals of starch in cells of higher plants or extracts thereof are generally called starches. Appearance and properties of starch granules vary considerably depending on the type of plant that originated. The starch extracted from corn is called cornstarch. Powdered starch is called starch powder or starch particles. The starch particles are very hard crystalline, but if mixed with water, they will loosen when they absorb moisture. This phenomenon occurs when rice or flour is mixed with water and heated to about 60 ° C. The starch granules with this type of swelling facilitates penetration of digestive enzymes, resulting in higher digestibility. In the present invention, the starch has a cationic substituent in the range of about 0.01 to about 0.1 substitution degrees per gram of glucose starch, and the cationic substituent comprises from 0.1% to 10% by weight, based on the particulate filler .

The apparatus 200 for dispersing the particulate filler and the dispersing method are well known in the art and can be used as long as they can disperse the particulate filler. For example, particulate fillers can be dispersed using a lattice-shaped application roller disclosed in Korean Patent Publication No. 10-1156611. However, the coating roller of the lattice shape disclosed in Korean Patent Publication No. 10-1156611 has a disadvantage in that the dispersion uniformity of the particulate filler is lowered because the filling flaws of the application roller fall on the lower layer sanitary paper at once after the particulate filler is filled. Accordingly, the dispersing device 200 in the present invention is configured to uniformly disperse the particulate filler 299 using the particulate filler dispersing device 200 shown in FIGS. 3 and 4 in order to uniformly disperse the particulate filler.

3 is a cross-sectional view of a preferred particulate filler dispersing apparatus 200 used in the particulate filler dispersing step S03 according to the production method of the present invention, and Fig. 4 is a cross-sectional view of the particulate filler dispersing step S03 according to the producing method of the present invention Lt; / RTI > is a schematic perspective view of a preferred particulate filler dispersion roller 220 used.

As shown in FIGS. 2 to 4, the particulate filler dispersing apparatus 200 is disposed on the lower layer sanitary paper 100. The particulate filler scattering apparatus 200 includes an upper hopper 210 and a particulate filler 299 filled in the hopper 210. The particulate filler 299 is filled in the upper hopper 210 by rotation of a dispersion roller 220 having a projection 221 on the surface of the lower rotation roller. And is designed to uniformly discharge the particulate filler 299. A plurality of projections 221 having a height of 1 to 6 times the average particle diameter of the particulate filler 299 are formed on the outer surface of the dispersing device 200 so as to be rotatable on the outer surface of the lower end of the upper hopper 210, The height and spacing of the protrusions 221 provided in the dispersion roller 220 are set so as to correspond to the particle size of the particulate filler 299, More preferably 2 to 4 times as large as the average particle diameter.

The particulate filler 299 discharged through the lower outlet of the hopper 210 of the particulate filler scattering apparatus 200 is charged between the plurality of protrusions 221 provided in the dispersion roller 220, , The particulate filler 299 is dropped on the upper surface of the lower layer sanitary paper 100 and scattered. That is, after the particulate filler 299 is accumulated between the plurality of protrusions 221, the fine particulate filler 299 is naturally dropped to the surface of the lower layer hygienic paper 100 while being moved between the protrusions 221 according to the rotation of the dispersion roller 220 , And the particulate filler 299 is scattered more evenly on the surface of the lower layer sanitary paper 100. The dispersion thickness of the particulate filler 299 may be adjusted according to the rotation speed of the dispersion roller. In the present invention, the thickness of the scattered layer on the surface of the lower layer sanitary paper (100) is 5 to 200 mu m,

In the method of manufacturing a sanitary paper according to the present invention, a suction device 300 is provided below a lower layer hygienic paper 100 in opposition to a particulate filler dispersing device 200 located on an upper part of a lower layer sanitary paper 100, It is preferable that the filler 299 is evenly adhered to the surface of the lower layer hygienic paper 100 support. As described above, the particulate filler 299 is dispersed through the particulate filler dispersing device 200 located on the upper portion of the lower layer sanitary paper 100. The suction device 300 is provided below the lower layer sanitary paper 100 opposed to the particulate filler scattering device 200 and sucked at a predetermined pressure to dispose the dispersed particulate filler 299 on the upper surface of the sanitary paper support 100 It can be placed evenly. In addition, dust generated during the manufacturing process is also sucked, and it can also help stable transfer of the lower layer sanitary paper 100. 2, molten hot-melt resin is injected onto the upper surface of the lower layer sanitary paper 100 on which the particulate filler 299 is dispersed, as shown in FIG. The injected hot melt resin further fixes the particulate filler 299 to the sanitary paper while fixing the upper layer hygiene paper 100 and the lower layer hygiene paper 100 described later. It goes without saying that the particulate filler 299 may be formed in multiple layers by repeating the above-described step (S03) of dispersing the particulate filler and the step (S04) of injecting the second hot melt after the secondary hot melt injection step. Then, according to the second hot melt injection step (S04), the upper layer hygienic paper is separately supplied to the upper surface of the lower layer hygienic paper 100 on which the hot melt resin is sprayed and compressed to bond the lower layer hygienic paper 100 and the upper layer hygienic paper. The supplied upper layer hygiene paper 100 is adhered better by the hot melt resin by passing the pressing means such as the roller 220 rotating together with the lower layer hygiene paper 100. [

The upper layer hygiene paper according to the present invention is different from the lower layer hygiene paper 100. The upper layer hygiene paper according to the present invention has additional functionalities and can change the surface of the lower layer sanitary paper 100 or the properties of the sanitary paper itself . The lower layer sanitary paper 100 produced by adding the functionality according to the method disclosed in the present invention may be rewound and, if necessary, after laminating the upper layer sanitary paper, or by bending it into a predetermined shape alone, By post-processing, it is possible to manufacture hygienic paper of various functions.

The test results of the samples manufactured according to the embodiments of the present invention were submitted to the KTCC (Korean Industrial Support Center) for analysis.

Figure pat00001

As a result of the test analysis according to the present invention, the basis weight of the sanitary paper increased by 8.9% on average and exceeded 20 g / m 2 on average, which satisfies the standard of sanitary paper in general and the thickness and tensile strength 38.4% and 36.2%, respectively. The rupture strength is decreased by 2.4%, the roughness and smoothness are increased by 71.2% on the surface and 73.4% on the back, which strengthens the ductility of the sanitary paper. In addition, the tearing strength has increased by 42 ~ 55%, which is a stepping stone to solve the chronic problem of sanitary paper. In addition, the whiteness of the surface is increased by 6.3%, which can be a considerable advantage in upgrading the sanitary paper. In addition, although not included in the above test analysis, the tissue of the fabric on the surface of the sanitary papermaking fabric was considerably strengthened in the hygienic paper manufacturing process, thereby reducing the generation of dust.

3 to 5,
100 Hygienic Paper Paper Fabric
200 particulate filler dispersing device
210 Sprayer hopper 220 Sprayer roller
221 Roller projection
299 particulate filler
300 lower suction device
310 Suction port vent 320 Vent port piping
A cross section display

Claims (7)

A method of manufacturing a sanitary paper such as a toilet paper, a napkin, a hand towel, etc., which comprises dispersing a particulate filler such as kaolin clay and starch with a hot melt powder and attaching the same by a dry method, more specifically by a heat fusion method. The method according to claim 1,
A lower layer sanitary paper pulling step of pulling up the wound lower layer sanitary paper; A first hot melt injection step of injecting melted hot melt resin onto the upper surface of the lower layer sanitary paper; A microparticulate filler dispersing step of dispersing the particulate filler on the upper surface of the lower layer sanitary paper on which the hot melt resin is injected; A second hot melt injection step of injecting melted hot melt resin onto the upper surface of the lower layer hygienic paper on which the particulate filler is dispersed; And a microfine filler containing a top layer hygienic paper on an upper surface of the lower layer hygiene paper on which the hot melt resin is sprayed and a lower layer hygiene paper and an upper layer hygiene paper, Comprising the steps of: 3. The method according to any one of claims 1 to 2,
Wherein the step of dispersing the particulate filler is performed through a particulate filler dispersing device located on an upper portion of the lower layer sanitary paper, the particulate filler dispersing device comprises a hopper filled with a particulate filler and having an outlet at a lower portion thereof, Wherein the dispersion rollers are provided with a dispersion roller having a plurality of protrusions arranged on the outer surface at an interval of 1 to 6 times the average particle diameter of the particulate filler, the dispersion protrusions having a height of 1 to 6 times the average particle diameter of the particulate filler, Wherein the particulate filler discharged from the discharge port is filled between a plurality of protrusions provided on the dispersion roller and the particulate filler is dropped on the surface of the lower layer hygiene paper by the rotation of the dispersion roller, Wherein said sanitary papermaking process comprises the steps of: 3. The method according to claim 1 or 2,
Wherein the particulate filler dispersing step is carried out through a particulate filler dispersing device located on an upper portion of the lower layer sanitary paper, and the particulate fillers dispersed through the inhalation device provided in the lower portion of the lower layer sanitary paper to face the particulate filler- Wherein the microparticulate filler is placed on the surface of the paper support. The method according to any one of claims 1 to 4,
Wherein after the secondary hot melt injection step, the particulate filler dispersing step and the second hot melt injection step are repeated again, if necessary. 6. The method according to any one of claims 1 to 5,
Characterized in that the particulate filler is a particulate filler selected from clay, calcium carbonate, titanium dioxide, talc, aluminum silicate, calcium silicate, alumina trihydrate, activated carbon, starch, calcium sulfate, diatomaceous earth and mixtures thereof A method for manufacturing a sanitary paper comprising a filler. The method according to any one of claims 1 to 6,
In addition to the particulate filler, activated carbon powder impregnated with activated carbon, a deodorant substance, nano-carbon balls impregnated with a deodorant substance such as a transition metal in a nano-carbon ball composed of a spherical hollow core portion and a mesoporous carbon shell, zeolite, A paper NH 4 type, a molar ratio of SiO 2 / Al 2 O 3 within a predetermined range, and a deodorizing functional filler such as a zeolite having a quaternary ammonium salt supported thereon, as well as an encapsulated solid phase, anion emitting material, photocatalyst, Or separately added within 5% by weight of the particulate filler to add additional functionality.
KR1020180036705A 2018-03-28 2018-03-28 Method for manufacturing sanitary paper comprising particulate filler KR20180065982A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110876945A (en) * 2019-11-19 2020-03-13 西安交通大学 ZnIn grown in limited area in carbon nano hollow sphere2S4Photocatalyst and preparation method thereof
CN114100577A (en) * 2021-12-02 2022-03-01 苏州中晟环境修复有限公司 Method for repairing phosphorus-polluted water body by modified biochar

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110876945A (en) * 2019-11-19 2020-03-13 西安交通大学 ZnIn grown in limited area in carbon nano hollow sphere2S4Photocatalyst and preparation method thereof
CN114100577A (en) * 2021-12-02 2022-03-01 苏州中晟环境修复有限公司 Method for repairing phosphorus-polluted water body by modified biochar
CN114100577B (en) * 2021-12-02 2024-03-01 苏州中晟环境修复有限公司 Method for repairing phosphorus-polluted water body by modified biochar

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