WO2016121797A1 - パルプ積繊シート、及びパルプ積繊シートの製造方法 - Google Patents
パルプ積繊シート、及びパルプ積繊シートの製造方法 Download PDFInfo
- Publication number
- WO2016121797A1 WO2016121797A1 PCT/JP2016/052282 JP2016052282W WO2016121797A1 WO 2016121797 A1 WO2016121797 A1 WO 2016121797A1 JP 2016052282 W JP2016052282 W JP 2016052282W WO 2016121797 A1 WO2016121797 A1 WO 2016121797A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pulp
- fiber
- binder
- pile
- sheet according
- Prior art date
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/425—Cellulose series
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/04—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/50—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by treatment to produce shrinking, swelling, crimping or curling of fibres
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
- D04H1/587—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives characterised by the bonding agents used
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
- D04H1/732—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by fluid current, e.g. air-lay
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/24—Moulding or pressing characterised by using continuously acting presses having endless belts or chains moved within the compression zone
Definitions
- the present invention relates to a pulp fiber sheet that can be used as a cleaning sheet, and a method for producing the same.
- Some wet tissues are composed of a first layer made of a tissue web containing cellulose fibers and a second layer made of an airlaid nonwoven web (see Patent Document 1, Claims, and Claim 11).
- the thing of this patent document 1 requires the 1st layer (obtained by papermaking), the 2nd layer (obtained by the airlaid method) from which this differs, and the binder which integrates both.
- the first layer provides strength to the wet tissue but reduces its flexibility.
- the main problem to be solved by the present invention is that it can be produced without going through a papermaking process, and that the pulp-stacked fiber sheet having the proper strength and the shape is maintained without being laminated with the papermaking sheet. On offer.
- the pulp pile fiber sheet has a liquid-permeable pulp pile layer containing raw fibers made of pulverized pulp or mainly pulverized pulp, and a binder, A plurality of fiber crimping parts formed by compression / pressing are provided, and the fiber crimping part is formed so that pulverized pulp fibers exist across the adjacent fiber crimping parts.
- the content of the binder with respect to the liquid-permeable pulp fiber layer is in the range of 1 to 20% by weight.
- the binder is carboxymethylcellulose.
- the binder is polyvinyl alcohol.
- the pulp pile sheet is further impregnated with a cleaning liquid and kept in a wet state.
- the binder is contained in a crosslinked state.
- the said compression / press part shall be formed by embossing.
- the manufacturing method of a pulp fiber sheet A fiber-laying step in which raw fibers made of pulverized pulp or mainly pulverized pulp are stacked on a mesh body by suction to form a stacked fiber body; and A compression-pressing step of compressing and pressing the obtained fiber stack so as to form a plurality of fiber press-bonded portions on the fiber stack so that pulverized pulp fibers straddling adjacent fiber pressure-bonded portions exist.
- the binder is applied to both surfaces of the stacked fiber.
- pressing and pressing process shall be performed with an embossing roll.
- the pressing by the flat roll is further performed before the pressing / pressing step by the embossing roll.
- the said drying process is performed by electromagnetic wave drying.
- the binder is carboxymethylcellulose.
- the binder is polyvinyl alcohol.
- the manufacturing method of Claim 15 is a manufacturing method which manufactures a fiber sheet using the pulverized raw material fiber, The binder is apply
- the pulp pile fiber sheet according to the present invention can be manufactured without going through a papermaking process, and the shape is maintained and proper strength is obtained even if it is not a laminate with the papermaking sheet.
- FIG. 1 is a perspective configuration diagram of a pulp pile sheet according to an embodiment of the present invention.
- FIG. 2 is a cross-sectional configuration diagram of a main part of the pulp pile fiber sheet.
- FIG. 3 is a perspective configuration diagram of a pulp stacking sheet in which the fiber crimping portion is linear.
- FIG. 4 is a schematic configuration diagram illustrating an example of a manufacturing process of the pulp pile fiber sheet. It is a figure which shows the schematic diagram of the manufacturing line 100 of the pulp fiber sheet 101 of 2nd Embodiment. It is a schematic diagram of a liquid supply process and a pulp detection process. It is a schematic diagram which shows the cotton-like pulp fiber 103 piled up.
- the pulp pile fiber sheet 1 is composed of one or two or more liquid-permeable pulp pile fiber layers 2, and is typically a non-water-degradable cleaning sheet for cleaning or a body cleaning sheet. It is suitable for use as a water-decomposable cleaning sheet such as a water-decomposable cleaning sheet and a toilet cleaner. Moreover, the manufacturing method concerning this embodiment can manufacture the said pulp fiber sheet 1 reasonably and appropriately.
- the pulp stack fiber sheet 1 has a liquid-permeable pulp stack fiber layer 2 containing raw fibers made of pulverized pulp 5 or mainly pulverized pulp 5 and a binder, and a plurality of fibers formed by compression and pressing.
- the fiber crimping part 2a is formed so as to include the crimping parts 2a, 2a... And the pulverized pulp fiber 2b straddling the adjacent fiber crimping parts 2a, 2a.
- the liquid-permeable pulp stacking fiber layer 2 is composed of an aggregate of a large number of fibers and has water absorption.
- the liquid permeable pulp stacking fiber layer 2 can be formed of natural fibers such as pulp, regenerated fibers such as rayon, or a mixture of natural fibers and regenerated fibers.
- natural fibers other than pulp for example, kenaf, bamboo fiber, cocoon, cotton, silk thread, sugar cane and the like can be used. It is preferable that the liquid-permeable pulp stacking fiber layer 2 is configured so that the degree of fiber density in the thickness direction is different.
- the pulverized pulp 5 refers to a material obtained by finely pulverizing a pulp material as a raw material such as a paper material with a pulverizer or the like into a cotton shape.
- the raw material of the pulverized pulp 5 include wood pulp, synthetic pulp, and waste paper pulp.
- Toilet paper materials can also be used.
- As the toilet paper material a blend of softwood bleached kraft pulp and hardwood bleached kraft pulp can be used, but it is preferable from the viewpoint of production to use raw material pulp made of softwood bleached kraft pulp.
- Softwood bleached kraft pulp has a longer fiber length than hardwood bleached kraft pulp.
- the liquid-permeable pulp laminate layer 2 is formed using pulverized pulp 5 obtained from softwood bleached kraft pulp, the degree of entanglement between the fibers is increased. As a result, the strength is improved. In addition, the inter-fiber space volume due to the entanglement between the fibers becomes larger than when hardwood bleached kraft pulp or the like having a short fiber length is used, and the degree of freedom of movement of each fiber is increased, so that flexibility is also improved.
- the blending ratio of pulverized pulp 5 is preferably 30% or more, and more preferably 50% or more. Furthermore, desirably, the blending ratio of the pulverized pulp 5 is preferably 80% or more, and more preferably 100% is formed of the pulverized pulp 5. Since the pulverized pulp 5 is formed by pulverizing a pulp material into a cotton-like shape, innumerable spaces are formed between the fibers as compared with the paper-made paper in which the fibers are compressed. When innumerable spaces are formed between the fibers, it is possible to increase the degree of freedom of movement of each fiber constituting the liquid permeable pulp fiber layer 2.
- the basis weight of the liquid-permeable pulp stacking fiber layer 2 is preferably 80 g / m 2 or less, and more preferably 60 g / m 2 or less.
- the pulp packing sheet 1 can be easily manufactured and packaged, and the user can easily use and pack the bulky material. It can be constituted as follows. Further, by setting the basis weight within the above range, the fiber density is not excessively increased. As a result, the amount of the binder for joining the fibers can be reduced.
- binder various binders can be used.
- the binder that can be used in the present invention include polysaccharide derivatives, natural polysaccharides, and synthetic polymers.
- the polysaccharide derivative include carboxymethyl cellulose (CMC), carboxyethyl cellulose, carboxymethylated starch or a salt thereof, starch, methyl cellulose, ethyl cellulose and the like.
- CMC carboxymethyl cellulose
- natural polysaccharides include guar gum, tant gum, xanthan gum, sodium alginate, carrageenan, gum arabic, gelatin, and casein.
- Synthetic polymers include polyvinyl alcohol (PVA), ethylene-vinyl acetate copolymer resin (EVA), polyvinyl alcohol derivatives, polymers or copolymers of unsaturated carboxylic acids, salts thereof, and the like.
- the carboxylic acid include acrylic acid, methacrylic acid, maleic anhydride, maleic acid, and fumaric acid. Of those described above, carboxymethyl cellulose and polyvinyl alcohol are particularly preferable.
- the binder is cross-linked because the physical strength of the pulp fiber sheet 1 is improved.
- a cross-linking agent that cross-links the binder causes a cross-linking reaction with the binder to make the binder a cross-linked structure, thereby improving the physical strength.
- the crosslinking agent when using a binder having a carboxyl group such as carboxymethylcellulose, it is preferable to use a polyvalent metal ion.
- an alkaline earth metal such as zinc, calcium or barium
- Examples include metal ions such as magnesium, aluminum, manganese, iron, cobalt, nickel, copper.
- ions of zinc, calcium, barium, magnesium, aluminum, iron, cobalt, nickel, copper, and the like are preferably used. These are preferable in terms of imparting sufficient wet strength.
- the above-mentioned polyvalent metal ions as the crosslinking agent are used in the form of water-soluble metal salts such as sulfates, chlorides, hydroxides, carbonates and nitrates.
- a titanium compound, a boron compound, a zirconium compound, a compound containing silicon, or the like can be used as a crosslinking agent, and one or more of these compounds are mixed. It can also be used as a crosslinking agent.
- the titanium compound include titanium lactate and titanium triethanolamate
- examples of the boron compound include borax and boric acid.
- examples of the zirconium compound include ammonium ammonium carbonate, and examples of the compound containing silicon include sodium silicate.
- the content of the binder in the pulp fiber sheet 1 with respect to the liquid-permeable pulp fiber layer 2 is preferably 1 to 20% by weight. If the content is less than 1% by weight, the strength of the pulp pile fiber sheet 1 is insufficient, while if it exceeds 20% by weight, the flexibility of the pulp pile fiber sheet 1 is lowered.
- the liquid permeable pulp stacking fiber layer 2 constituting the pulp stacking sheet 1 includes a plurality of fiber crimping parts 2a, 2a ... formed by compression and pressing, and the adjacent fiber crimping parts 2a, Since the fiber crimping portion 2a is formed so that the pulverized pulp fiber 2b straddling 2a exists, the shape of the pulp pile fiber sheet 1 is stably maintained, and has an appropriate strength, On the other hand, it has moderate flexibility. If the binder is a water-soluble binder such as carboxymethyl cellulose, the pulp stacking sheet 1 becomes a water-degradable pulp stacking sheet having good water decomposability.
- the said binder when the said binder is polyvinyl alcohol, it can be set as the hydrolysable pulp fiber sheet which has the favorable water degradability according to conditions, or can also be set as a non-hydrolysis pulp fiber sheet.
- hydrolysis means that the adhesive strength between fibers constituting the paper has a minimum strength necessary for functions such as molding and wiping in a dry state, but is discarded in water. As described above, in a state of being soaked in water, the adhesive strength is extremely reduced, and when the external force is applied, it is easily decomposed or dispersed.
- non-hydrolysis means that the adhesive strength between fibers constituting paper has a minimum strength necessary for functions such as molding and wiping in a dry state, and is soaked in water. Even in the wet state, it means that it does not disperse easily even if some external force is applied.
- the pulp-stacked fiber sheet 1 is manufactured without going through a papermaking process, and the shape is maintained and proper strength is obtained even if it is not a laminated body with the papermaking sheet.
- Fig. 1 shows a schematic configuration of a pulp fiber sheet 1 according to Figs.
- the pulp stacking fiber sheet 1 is provided with a plurality of fine fiber concave portions 2a having a plurality of concave shapes.
- the distance between the adjacent fiber crimping parts 2a and the fiber length of the pulverized pulp fiber 2b are adjusted so that the pulverized pulp fiber 2b straddling the adjacent fiber crimping parts 2a and 2a exists.
- the pulverized pulp fiber 2b may straddle the fiber crimping portions 2a at three or more locations.
- the compression / pressing part is preferably formed by embossing. It suffices if a plurality of the fiber crimping portions 2a are provided, and the form thereof may be appropriately changed as necessary.
- the fiber crimping portion 2 a of the pulp stacking fiber sheet 1 has a concave shape as the fiber crimping portion 2 a having a concave shape.
- the pulp pile fiber sheet 1 is impregnated with a cleaning liquid and kept wet, it can be used as a body wipe for infants, toilet cleaners, and other cleaning sheets.
- reference numeral 3 denotes a raw material of the pulp material to be the raw fiber
- reference numeral 4 in the figure denotes a wound body of the produced pulp stacking sheet 1.
- the pulp material is first sent to the pulverizer 6 to become the pulverized pulp 5.
- Reference numeral 6 a is a fixed blade constituting the crushing device 6, and reference numeral 6 b is a rotary blade constituting the crushing device 6.
- the pulverized pulp 5 becomes a piled body that will eventually become the pulp piled sheet 1 in the fiber stacking device 7.
- the fiber stacking device 7 is configured such that the pulverized pulp 5 is adsorbed by making the inner side of the conveyor belt 7 a negative pressure on the upper surface of the mesh-like conveyor belt 7 a that receives the pulverized pulp 5. ing.
- the flat fiber 8 is further pressed against the fiber stack before the crimping / pressing step.
- a planar roll 8 is disposed above the unloading end 7b of the conveyor belt 7a constituting the stacking device 7 so as to sandwich the stacked body with the unloading end 7b.
- the piled body is fed in a form of a sheet that is difficult to adhere to an embossing roll 9 described later in the crimping and pressing step.
- the press-bonding / pressing step on the piled body is performed by embossing using an embossing roll.
- the stacked fiber body is fed between a pair of upper and lower embossing rolls 9, whereby a plurality of fiber crimping portions 2 a are connected to the liquid-permeable pulp stacking fiber layer 2 and adjacent fiber crimping portions.
- the pulverized pulp fibers 2b straddling 2a and 2a are formed.
- the embossing roll a conventionally known embossing roll in which a large number of protrusions for embossing are provided on the peripheral surface of the roll can be used.
- the liquid-permeable pulp stacking fiber layer 2 is in a non-wetting state, and the embossing is applied to the stacking fiber layer in a non-wetting state.
- the non-wetting state means that it does not include an aspect in which water is supplied to the liquid-permeable pulp product fiber layer 2 by spraying water on the liquid-permeable pulp product fiber layer 2 or the like.
- paper materials contain moisture (moisture) according to the temperature and humidity conditions, but this moisture (moisture) is not actively supplied from the outside, so it contains such moisture (moisture). Even if it is, it corresponds to a non-wet state. Therefore, although the content rate of the moisture (water
- the spray nozzle 12 used for spraying a conventionally known one may be arbitrarily selected and used.
- the supply of the binder is not limited to spraying, and other known methods such as coating with a roll-type coating device such as a gravure printer or a flexographic printer may be used.
- the cross-linking agent can be supplied at the same time as the binder, but the cross-linking agent is not limited to being supplied together with the binder, and can be supplied and added at any point in the production process.
- the stacked body coated with the binder is sent to the drying device 13 and dried.
- drying is preferably performed by electromagnetic wave drying. This is because the shape of the fiber crimping part 2a is easily lost if it takes time to dry in a state where a binder is applied to the fiber stack on which the plurality of fiber crimping parts 2a are formed by the crimping / pressing step.
- Such drying may be performed by arbitrarily selecting a conventionally known method such as hot air drying or infrared drying.
- such drying is not limited to the case of drying with one drying device, and a plurality of drying devices are installed, and the liquid-permeable pulp stack fiber layer 2 is sequentially fed to each drying device and dried. Also good.
- the binder instead of drying and subsequently embossing the binder after applying the binder, the binder is applied after embossing and then dried. If the binder is applied before embossing, it will not only damage the fibers that make up the pile during embossing but also damage the surface layer of the binder formed on the surface of the pile. In this form, it has a feature that does not cause such damage to the piled body, and consequently, the cleaning sheet 1 to be produced therefrom.
- both edge parts along the conveyance direction of the said piled-up body are each cut
- the shape of the pulp pile fiber sheet 1 to be produced is arranged.
- the cutting is performed by feeding the fiber stack between a pair of upper and lower slitter rolls 14 and 14.
- the pulp pile fiber sheet 1 produced as described above is folded as necessary. Moreover, by impregnating the pulp pile fiber sheet 1 produced as described above with a chemical solution, it can be used as a body wipe for infants, a toilet cleaner, and other cleaning articles.
- the raw material (material), the basis weight, the applicable binder and cross-linking agent, the drying method, and the like of the pulp fiber sheet 101 can be appropriately applied with the above-described embodiment, and thus overlap.
- the description to be omitted is omitted.
- the pulp stacking sheet 101 is denoted only by the final part of the production line 100, and is not illustrated otherwise.
- illustration of the pulp fiber 103 is also omitted.
- FIG. 5 is a diagram showing a schematic diagram of the production line 100 for the pulp fiber sheet 101 of the second embodiment.
- the manufacturing process of the manufacturing line 100 is roughly divided into a pre-grinding process, a pulverizing process, a fiber stacking process, a pressing process, a binder coating process, and a drying process.
- the pre-grinding process has a liquid supply process and a pulp detection process.
- the liquid supply step is a step of supplying a liquid to the pulp fiber 103 by the liquid supply device 104.
- the pulp detection step is a step of detecting whether or not the pulp fiber 103 is supplied to the production line 100 by the pulp detection device 105.
- the width (the length in the y direction) of the pulp fiber 103 is about 900 mm to 1800 mm, and the production line 100 is designed and manufactured according to the width.
- FIG. 6 is a schematic diagram of a liquid supply process and a pulp detection process.
- the liquid supply device 104 supplies a liquid to the central region 104 a of the pulp fiber 103 that has been conveyed in the liquid supply process.
- the pulp fiber sheet 101 manufactured with this manufacturing line 100 may be used as an absorber which absorbs excrement.
- a solution such as ethanol, methanol, 2-propanol (IPA), or water may be used for preventing static electricity.
- the liquid supplied by the liquid supply device 104 includes activated carbon, zeolite, silica, ceramic, Oya stone, charcoal polymer, carbon nanotube, carbon nanohorn, and organic materials such as citric acid and succinic acid for deodorization of excrement.
- Acid, alum (potassium alum) can be used.
- the liquid supply device 104 is illustrated as one unit, but a plurality of liquid supply devices 104 may be provided in accordance with the application, such as for preventing static electricity or for deodorization. Further, instead of the central region 104a, a region shifted in the Y direction in FIG. 5 may be used as the liquid supply region. In the present embodiment, not the entire Y direction of the pulp fiber 103 but a partial region such as the central region 104a is used as the liquid supply region. This is because the pulp fiber 103 is pulverized into a cotton shape in a pulverization step described later, and thus the above-described liquid is supplied to almost the entire pulp fiber 103 pulverized by the pulverization.
- the length of the central region 104a in the Y direction is about 10% to 50% of the width of the pulp fiber 103, and the length in the X direction may be the same as the length in the Y direction or may be shorter than the length in the Y direction. Good (about 25% to 75%).
- the central region 104a is rectangular, but it may be circular or elliptical.
- the liquid supply device 104 may adjust the supply amount of the liquid for preventing static electricity according to the humidity of the production line 100. Specifically, in the liquid supply device 104, when the room where the production line 100 is installed is dry (for example, when the humidity is 50% or less), the room where the production line 100 is installed is dry. Compared to the case where the humidity is not higher (for example, when the humidity is 65% or higher), the supply amount of the antistatic liquid may be increased. In other words, the liquid supply device 104 may increase the supply amount of the antistatic liquid in accordance with a decrease in humidity.
- the liquid supply device 104 may change the supply amount of the deodorizing liquid according to the use of the pulp fiber sheet 101. Specifically, the liquid supply device 104 may increase the supply amount of the deodorizing liquid in the above-described absorber, and reduce the supply amount of the deodorizing liquid when used in the exterior body.
- the deodorizing liquid may be a liquid in which a metal is dissolved. For this reason, the liquid supply apparatus 104 is configured to stop the supply of the deodorizing liquid when the pulp pile sheet 101 becomes the skin surface (when it comes into contact with the skin).
- Another process before pulverization is a pulp detection process for detecting whether or not the pulp fiber 103 is being conveyed. This is to detect a state in which the roll-shaped pulp fibers 103 are all conveyed and the pulp fibers 103 are not conveyed.
- the pulp detection device 105 irradiates the detection light 105a downward, and detects that the pulp fiber is conveyed when the reflected light from the pulp fiber 103 is detected by a detection unit (not shown).
- the pulp detection device 105 assumes that pulp fiber is not detected when the above-described reflected light cannot be detected by a detection unit (not shown), and issues a warning by voice or light emission.
- the pulp fiber 103 is pulverized using the pulverizer 106 in the pulverization step subsequent to the pre-pulverization step.
- the pulverizing apparatus 106 has a primary pulverization unit and a secondary pulverization unit.
- the pulp fiber 103 is pulverized into chips by the primary pulverization unit, and the pulp fibers 103 pulverized into chips by the secondary pulverization unit are cotton-like. Grind into.
- both the primary pulverization unit and the secondary pulverization unit are accommodated in a case or the like.
- the pulverized pulp is 100%, but composite fibers (ES fibers) may be mixed. Moreover, you may grind
- the cotton-like pulp fiber 103 is piled up using the fiber pile device 107 in the fiber pile process subsequent to the pulverization process.
- the cotton-like pulp fiber 103 is stored in the three tanks 107a, 107b, and 107c through the pipe 108 by high-pressure air or the like.
- the number of tanks is not limited to three.
- a scattering prevention cover is provided in order to prevent scattering (diffusion) of the cotton-like pulp fiber 103 in the fiber stacking process. Thereby, it is reduced that the worker of the production line 100 sucks the pulp fiber 103.
- the average fiber length of the pulverized pulp fiber 103 is about 1 mm to 3 mm as an example.
- the cotton-like pulp fibers 103 stored in the three tanks 107a, 107b, and 107c are stacked on the lower conveyance mesh 109.
- the lower conveyance mesh 109 has a mesh shape, and a high molecular compound can be used as a material thereof.
- a synthetic resin (thermoplastic resin) such as polytetrafluoroethylene, or a synthetic fiber such as nylon or PET is used. Can do.
- As the lower transfer mesh 109 30th to 50th meshes having 30 to 50 meshes per 1 inch ⁇ 1 inch can be used.
- the 40th mesh (for example, 0.5 mm ⁇ 0.5 mm) can be used.
- the present invention is not limited to this.
- the lower conveying mesh 109 conveys the cotton-like pulp fibers 103 piled up by a driving force from a driving source (not shown) in the X direction in the figure.
- the lower transport mesh 109 repeatedly transports the cotton-like pulp fiber 103 by the four rolls 110 within a predetermined driving range (from the stacking process to the pressing process by the flat roll 112).
- a vacuum device 111 is disposed below the lower transfer mesh 109.
- the vacuum device 111 adsorbs the cotton-like pulp fiber 103 through the mesh-shaped transfer mesh 109.
- FIG. 7 is a schematic view showing a cotton-like pulp fiber 103 to be stacked.
- the cotton-like pulp fibers 103 stacked on the transport mesh 109 from the tank 107a increase (become high) on the right side with a long fiber stacking time and go to the left side.
- the time for fiber integration is shortened, it is reduced (lowered).
- the suction force by the vacuum device 111 becomes weaker as the amount of piled fiber increases. In other words, the suction force by the vacuum device 111 is unlikely to be weak at a portion where the load is small.
- the amount of the cotton-like pulp fibers 103 to be stacked from the tank 107b to the transporting mesh 109 differs depending on the position of the transporting mesh 109. Will be less.
- the amount of the cotton-like pulp fibers 103 to be stacked from the tank 107c to the transporting mesh 109 is almost equal regardless of the position of the transporting mesh 109. It becomes.
- the load amount of the cotton-like pulp fiber 103 is uneven depending on the location, it may be adjusted by shifting the position of a vacuum suction port (not shown) or changing the number of vacuum suction ports.
- a strong adsorbing force acts near the vacuum device 111 immediately above the transporting mesh 109, so that the cotton-like pulp fibers 103 are densely packed, and as they move away from the transporting mesh 109 (+ Z direction)
- the suction force by the vacuum device 111 becomes weak and the cotton-like pulp fiber 103 becomes sparse.
- the pulp pile fiber sheet 101 produced in the production line 100 is made into a product, if it is a cleaning product such as a flooring sheet or a toilet cleaner, the cotton-like pulp fiber 103 is applied with a chemical on the dense surface. Can remove dirt firmly.
- a skin product having a good touch can be provided by applying a chemical solution to a surface on which the cotton-like pulp fiber 103 is sparse.
- the pressing step includes a first pressing step for pressing before the first binder application step described below, and a second for pressing after the first drying described below and before the second binder application step described later. It has a pressing process.
- the flat roll 112 has a pair of roll members, and presses the piled cotton-like pulp fiber 103 to adjust its bulk.
- a pressure of 4 kgf / cm 2 is applied to the flat roll 112. Thereby, the mesh shape unevenness
- the pressure of the flat roll 112 may be set between 2 kgf / cm 2 and 8 kgf / cm 2 , depending on the application of the product using the pulp pile fiber sheet 101 and whether it is a water-decomposable product or a non-hydrolyzed product. Should be set.
- the mesh of the lower conveyance mesh 109 is No. 40 (for example, 0.5 mm ⁇ 0.5 mm), and the mesh-shaped irregularities are formed at intervals of 0.5 mm.
- the average fiber length of the pulverized pulp fiber 103 is about 1 mm to 3 mm, the pulverized pulp fiber 103 straddles the mesh-shaped irregularities.
- the pressure of the flat roll 112 may be set to less than 2 kgf / cm 2, and if the pressure of the lower transport mesh 109 is high, apply a pressure of 8 kgf / cm 2 or more.
- a mesh shape may be formed on the pulp fiber 103.
- a liquid supply device 104 may be provided before and after the flat roll 112 to supply at least one liquid for preventing static electricity and for deodorizing.
- at least one of a pair of roll member which comprises the flat roll 112 as uneven
- the lower conveyance mesh 109 conveys the pulp fibers 103 until the flat roll 112 is pressed.
- the pulp fiber 103 is conveyed using the upper conveying mesh 113 and the vacuum device 115.
- the vacuum device 115 provided on the upper side of the transport surface of the upper transport mesh 113 is the pulp fiber 103 pressed against the flat roll 112 via the upper transport mesh 113 in contact with the upper surface of the pulp fiber 103. Vacuum the upper surface.
- the pulp fiber 103 is conveyed in the X direction in the figure by a driving force from a driving source (not shown).
- the transporting mesh 113 repeatedly transports the pulp fiber 103 by the four rolls 114 within a predetermined driving range (pressing process of the flat roll 116).
- the flat roll 116 has a pair of roll members, presses the pulp fiber 103 that has passed through the flat roll 112 to adjust its bulk, or changes the mesh shape of the upper conveying mesh 113 to the upper surface (upper side) of the pulp fiber 103. Or a surface in contact with the transfer mesh 113).
- the upper transfer mesh 113 is also the 40th mesh that is the same as the lower transfer mesh 109.
- the pressure of the flat roll 116 is also set between 2 kgf / cm 2 and 8 kgf / cm 2 .
- the emboss 117 is used to emboss the pulp fiber 103 that has passed through the flat roll 116 in cooperation with the lower roll of the flat roll 116.
- the emboss 117 is wave-shaped emboss.
- the shape may be any shape.
- a plurality of embosses 117 may be provided and embossing may be performed a plurality of times. In this case, the embossing of the same shape may be sufficient and the embossing of a different shape may be sufficient.
- the pressure of the emboss 117 is set to a pressure higher than the pressure set by the flat rolls 112 and 116, and is set, for example, between 4 kgf / cm 2 to 10 kgf / cm 2.
- the number of times embossing may be performed may be set depending on the use of the product using the pulp pile fiber sheet 101 and whether the product is water-degradable or non-hydrolyzed, and embossing may not be performed.
- the distance between the pair of roll members may be larger than the thickness of the pulp stacking sheet 101 in the Z direction.
- the pulp fiber 103 does not interpose a transport mesh during embossing.
- embossing may be performed on the pulp fiber 103 by cooperating with the below-described lower conveying mesh 118 and the embossed 117.
- the position of the emboss 117 may be shifted in the plus X direction in FIG. 5 so that the emboss 117 and the lower conveyance mesh 118 face each other.
- the pulp fiber 103 may be pressed by a flat roll and the lower conveyance mesh 118 instead of the emboss 117.
- the liquid is supplied to the pulp fiber 103 by the liquid supply device 104.
- the pulp fiber 103 may be non-wet by the pressing step, for example, It is sufficient that the moisture content of the pulp fiber 103 is less than 15% during the pressing step, and it is sufficient that the moisture content of the pulp fiber 103 is not affected by static electricity by conveyance with the mesh. For this reason, in this 2nd Embodiment, if the moisture content of the pulp fiber 103 is less than about 15% at the time of a press process, it can be said that it corresponds to a non-wet state.
- the flat rolls 112 and 116 and the embossed 117 are heated in a range of about 60 ° C. to 150 ° C., and the temperature of the pulp fiber 103 is about 40 ° C. to 70 ° C. If the binder easily penetrates into the pulp fiber 103, the amount of the binder applied can be reduced, and the manufacturing cost can be reduced.
- the flat rolls 112 and 116 and the embossed 117 may be heated so that the temperature of the pulp fiber 103 is the same as the melting temperature of the binder (for example, 40 ° C. to 60 ° C.).
- the binder is applied to the pulp fiber 103 in the binder application step subsequent to the pressing step, and the liquid-permeable pulp pile fiber layer described in the above embodiment is formed.
- the binder coating step includes a first binder coating step and a second binder coating step, and a first drying step described later between the first binder coating step and the second binder coating step. Enters.
- the first binder coating process will be described.
- the binder is applied by a first application device 121 that is disposed above the pulp fiber 103 and has a plurality of nozzles facing the pulp fiber 103 with respect to the upper surface of the pulp fiber 103.
- the pulp fibers 103 are placed on the mesh-shaped lower conveyance mesh 118 and conveyed in the X direction while being adsorbed in the ⁇ Z direction by the vacuum device 120 provided below the lower conveyance mesh 118. Is done.
- the mesh of the lower transfer mesh 118 may be a coarser mesh than the lower transfer mesh 109 and the upper transfer mesh 113, and 10th to 30th meshes can be used.
- the 16th For example, the mesh is 1.0 mm ⁇ 1.0 mm.
- the lower conveyance mesh 118 repeatedly conveys the pulp fiber 103 by the four rolls 119 within a predetermined driving range (first binder application step).
- a binder is coated on the pulp fiber 103 from the upper side (+ Z direction) to the lower side ( ⁇ Z direction) with respect to the upper surface by the first coating device 121 and the pulp device 103 is subjected to pulp by the vacuum device 120 Adsorbed downward ( ⁇ Z direction) with respect to the lower surface of the fiber 103.
- any of the binders mentioned in the above embodiment may be used, but in the second embodiment, the pulp fiber used for a water-degradable product.
- CMC is applied
- EVA is used in the case of pulp fiber 103 used for a non-hydrolyzed product.
- the upper surface side of the pulp fiber 103 is more sparse with the cotton-like pulp fiber 103 than the lower surface side of the pulp fiber 103, so that the binder easily penetrates. For this reason, the possibility that the binder applied (sprayed) on the upper surface of the pulp fiber 103 may remain on the upper surface of the pulp fiber 103 can be reduced.
- a first drying process which is one of the drying processes, is performed following the first binder coating process.
- the pulp fiber 103 placed on the mesh-shaped lower conveyance mesh 122 is subjected to electromagnetic wave drying from the upper surface side of the pulp fiber 103 by the first drying device 124 as indicated by an arrow. Is done.
- the first drying device 124 hot air drying or infrared drying described in the above embodiment may be used.
- the lower transfer mesh 122 is driven by four rolls 123 (only two are shown) in a state where the pulp fiber 103 is adsorbed by the vacuum device 125 located below the transfer surface of the lower transfer mesh 122.
- the pulp fiber 103 is repeatedly conveyed in the range (first drying step).
- the lower transfer mesh 122 may be 10th to 30th.
- the lower transfer mesh 122 is a 22nd mesh (for example, 0.7 mm ⁇ 0.7 mm).
- the embossed shape formed in the pulp fiber 103 is easily maintained by performing the first binder coating step and the first drying step following the embossing by the embossing 117.
- the second pressing step is performed following the first drying step.
- the second pressing step is performed by the emboss 126.
- the embossing 126 has a pair of roll members and is a wave-shaped embossing similar to the embossing 117, but the shape may be any shape. Further, a plurality of embossing 126 may be provided and embossing may be performed a plurality of times. In this case, the embossing of the same shape may be sufficient and the embossing of a different shape may be sufficient. Further, the pressure of the emboss 126 can be set similarly to the emboss 117. Further, as is apparent from FIG.
- the pulp fiber 103 does not interpose a transport mesh at the time of embossing, but a transport mesh may be interposed.
- the emboss 126 may not be provided in the production line 100. In this case, a flat roll may be provided instead of the emboss 126. Moreover, when providing the emboss 126, you may make it use a flat roll together.
- the second pressing process is also performed prior to the second binder application process and the second drying process, which will be described later, the embossed shape formed on the pulp fiber 103 is easily maintained.
- the second pressing process may be omitted, or the emboss 126 itself may be omitted.
- the distance between the pair of roll members may be larger than the thickness of the pulp stacking sheet 101 in the Z direction. That's fine.
- the second binder coating step is performed following the second pressing step.
- the binder is applied by a second application device 130 that is disposed below the pulp fiber 103 and has a plurality of nozzles facing the pulp fiber 103 with respect to the lower surface of the pulp fiber 103.
- the pulp fibers 103 are transported in the X direction while being adsorbed in the + Z direction by the vacuum device 129 through the mesh-shaped upper transporting mesh 127 in contact with the pulp fibers 103.
- the upper transport mesh 127 repeatedly transports the pulp fiber 103 by the four rolls 128 within a predetermined driving range (second binder application step).
- the count of the upper transfer mesh 127 may be the same as the count of the lower transfer mesh 118.
- the binder in the second binder coating step, is applied to the pulp fiber 103 from the lower side ( ⁇ Z direction) to the upper side (+ Z direction) with respect to the lower surface by the second coating device 130, and It is adsorbed on the upper side (+ Z direction) with respect to the upper surface of the fiber 103.
- the binder applied in the second binder application process is the same as the binder applied in the first binder application process.
- the binder is applied to the lower surface of the pulp fiber 103 from a plurality of nozzles located below the pulp fiber 103, so that the binder that has not penetrated into the pulp fiber 103 remains in the pulp fiber 103. It will fall off without causing binder coating unevenness. For this reason, it is possible to reduce unevenness in strength and unevenness in drying of the pulp-stacked fiber sheet 101 after the second drying step described later.
- the binder is applied to the upper and lower surfaces of the pulp fiber 103 without inverting the pulp fiber 103. For this reason, complication of the production line 100 can be avoided and the conveyance of the pulp fiber 103 can be speeded up.
- a cover for preventing the diffusion of the binder is attached to form a closed space, and the binder that has not been applied to the pulp fiber 103 is collected by a pump or the like, and again the first application device 121. If it supplies to the 2nd coating device 130, the usage-amount of a binder can be reduced and the pulp fiber sheet 101 manufacturing cost can be reduced.
- the second drying process which is another drying process, is performed following the second binder coating process.
- the pulp fiber 103 is + Z by a vacuum device 132 disposed above the transport surface of the upper transport mesh 131 via the mesh-shaped upper transport mesh 131 that contacts the upper surface of the pulp fiber 103. It is conveyed in the X direction while being adsorbed in the direction.
- the second drying device 133 performs electromagnetic wave drying from the lower surface side of the pulp fiber 103 as indicated by an arrow.
- the upper conveyance mesh 131 is repeatedly pulp fibers in a predetermined driving range (second drying step) by four rolls 134 (only two are shown) while the pulp fibers 103 are adsorbed by the vacuum device 132. 103 is being conveyed.
- the count of the upper transfer mesh 131 may be the same as the count of the lower transfer mesh 122. Moreover, you may make it perform embossing after a 2nd drying process.
- a pulp pile fiber sheet 101 is obtained through a second drying step, and the pulp pile fiber sheet 101 is conveyed by a conveyance roll 135 and wound by two winding rolls 136 and 137.
- the pulp fiber sheet 101 is manufactured without going through the paper making process.
- the pulverization step may be set based on the counts of the lower transfer mesh 109 and the upper transfer mesh 113 so as to have an average fiber length straddling the mesh.
- the present invention is not limited to the embodiment described above, and includes all embodiments that can achieve the object of the present invention.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Mechanical Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Paper (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
Description
粉砕パルプ又は主として粉砕パルプからなる原料繊維を、吸引によりメッシュ体上に積繊させて積繊体を形成する積繊工程と、
得られた前記積繊体を、圧縮・押圧することにより、この積繊体に複数の繊維圧着部を、隣り合う繊維圧着部を跨ぐ粉砕パルプ繊維が存在するように形成する圧着・押圧工程と、
前記繊維圧着部の形成された積繊体の、少なくとも一方の面にバインダーを塗布する、バインダー塗布工程と、
前記バインダー塗布工程の後に前記積繊体を乾燥させて液透過性パルプ積繊層とする乾燥工程と、を有するものとした。
得られた積繊体を、圧縮・押圧することにより、この積繊体に複数の繊維圧着部2aを、隣り合う繊維圧着部2aを跨ぐ粉砕パルプ繊維2bが存在するように形成する圧着・押圧工程と、
前記積繊体の、少なくとも一方の面にバインダーを塗布する、バインダー塗布工程と、
前記バインダー塗布工程の後に前記積繊体を乾燥させて液透過性パルプ積繊層2とする乾燥工程と、を有するものである。
また、第2乾燥工程後にエンボス加工を行うようにしてもよい。
上述したように、第2実施形態においても、抄紙工程を経ることなくパルプ積繊シート101が製造される。なお、下側搬送用メッシュ109および上側搬送用メッシュ113の番手に基づいて、メッシュを跨ぐような平均繊維長になるように粉砕工程を設定するようにしてもよい。
2a 繊維圧着部
2b 粉砕パルプ繊維
5 粉砕パルプ
106 粉砕装置
107 積繊装置
117 エンボス
121 第1塗布装置
124 第1乾燥装置
130 第2塗布装置
133 第2乾燥装置
Claims (21)
- 粉砕パルプ又は主として粉砕パルプからなる原料繊維と、バインダーと、を含有する液透過性パルプ積繊層を有し、圧縮・押圧により形成された複数の繊維圧着部を備えてなり、かつ、隣り合う前記繊維圧着部を跨ぐ粉砕パルプ繊維が存在するように前記繊維圧着部を形成させてなることを特徴とする、パルプ積繊シート。
- 前記バインダーの、前記液透過性パルプ積繊層に対する含有量が、1~20重量%である、請求項1に記載のパルプ積繊シート。
- 前記バインダーが、カルボキシルメチルセルロースである、請求項1又は請求項2に記載のパルプ積繊シート。
- 前記バインダーが、ポリビニルアルコールである、請求項1又は請求項2に記載のパルプ積繊シート。
- 更に、清浄用液体が含浸され、湿潤状態である、請求項1~請求項4のいずれか1項に記載のパルプ積繊シート。
- 前記バインダーが、架橋された状態で含有されている、請求項1~請求項5のいずれか1項に記載のパルプ積繊シート。
- 前記圧縮・押圧部が、エンボス加工により形成されたものである、請求項1~請求項6のいずれか1項に記載のパルプ積繊シート。
- 粉砕パルプ又は主として粉砕パルプからなる原料繊維を、吸引によりメッシュ体上に積繊させて積繊体を形成する積繊工程と、
得られた前記積繊体を、圧縮・押圧することにより、この積繊体に複数の繊維圧着部を、隣り合う繊維圧着部を跨ぐ粉砕パルプ繊維が存在するように形成する圧着・押圧工程と、
前記繊維圧着部の形成された積繊体の、少なくとも一方の面にバインダーを塗布する、バインダー塗布工程と、
前記バインダー塗布工程の後に前記積繊体を乾燥させて液透過性パルプ積繊層とする乾燥工程と、
を有することを特徴とする、パルプ積繊シートの製造方法。 - 前記バインダー塗布工程が、積繊体の両面にバインダーを塗布する、請求項8に記載のパルプ積繊シートの製造方法。
- 前記圧着・押圧工程が、エンボスロールにより行われる、請求項8又は請求項9に記載のパルプ積繊シートの製造方法。
- 前記エンボスロールによる圧着・押圧工程の前に、更に、平面ロールによる押圧が行われる、請求項10に記載のパルプ積繊シートの製造方法。
- 前記乾燥工程が、電磁波乾燥により行われる、請求項8~請求項11のいずれか1項に記載のパルプ積繊シートの製造方法。
- バインダーがカルボキシルメチルセルロースである、請求項8~請求項12のいずれか1項に記載のパルプ積繊シートの製造方法。
- バインダーがポリビニルアルコールである、請求項8~請求項12のいずれか1項に記載のパルプ積繊シートの製造方法。
- 粉砕した原料繊維を用いて積繊シートを製造する製造方法において、
前記原料繊維に第1方向からバインダーを塗布し、前記第1方向に沿って前記原料繊維を吸着する工程と、
前記原料繊維に前記第1方向と異なる第2方向からバインダーを塗布し、前記第2方向に沿って前記原料繊維を吸着する工程とを含むパルプ積繊シートの製造方法。 - 前記第2方向からの前記バインダーの塗布は、前記原料繊維の下面に対する前記バインダーの塗布であり、
前記第2方向に沿って前記原料繊維を吸着する工程は、前記原料繊維の上面の吸着である請求項15記載のパルプ積繊シートの製造方法。 - 前記原料繊維を搬送する搬送工程を含み、
前記搬送工程は、前記原料繊維の上面と接触する接触部材を介して、前記原料繊維の上面を吸着して搬送する請求項15記載のパルプ積繊シートの製造方法。 - 前記第2方向からのバインダーの塗布に先立って、前記第1方向に沿って気体を供給する工程を含む請求項15記載のパルプ積繊シートの製造方法。
- 前記第2方向からのバインダーの塗布の後に、前記第2方向に沿って気体を供給する工程を含む請求項15記載のパルプ積繊シートの製造方法。
- 前記第1方向からのバインダーの塗布に先立って、前記原料繊維を押圧する押圧工程を含む請求項15記載のパルプ積繊シートの製造方法。
- 前記原料繊維の静電気を除去する静電気除去工程を含む請求項15記載のパルプ積繊シートの製造方法。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016572089A JP6353085B2 (ja) | 2015-01-29 | 2016-01-27 | パルプ積繊シート、及びパルプ積繊シートの製造方法 |
US15/545,166 US20180010271A1 (en) | 2015-01-29 | 2016-01-27 | Pulp fibrous accumulated sheet and method for producing pulp fibrous accumulated sheet |
CN201680006297.XA CN107206621B (zh) | 2015-01-29 | 2016-01-27 | 纸浆纤维堆积片及纸浆纤维堆积片的制造方法 |
TW105116617A TWI726881B (zh) | 2015-12-25 | 2016-05-27 | 紙漿纖維堆積片、及紙漿纖維堆積片之製造方法 |
US16/398,367 US20190257013A1 (en) | 2015-01-29 | 2019-04-30 | Pulp fibrous accumulated sheet and method for producing pulp fibrous accumulated sheet |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015015594 | 2015-01-29 | ||
JP2015-015594 | 2015-01-29 | ||
JP2015-020532 | 2015-02-04 | ||
JP2015020532 | 2015-02-04 | ||
JP2015-253941 | 2015-12-25 | ||
JP2015253941 | 2015-12-25 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/545,166 A-371-Of-International US20180010271A1 (en) | 2015-01-29 | 2016-01-27 | Pulp fibrous accumulated sheet and method for producing pulp fibrous accumulated sheet |
US16/398,367 Division US20190257013A1 (en) | 2015-01-29 | 2019-04-30 | Pulp fibrous accumulated sheet and method for producing pulp fibrous accumulated sheet |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016121797A1 true WO2016121797A1 (ja) | 2016-08-04 |
Family
ID=56543407
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2016/052282 WO2016121797A1 (ja) | 2015-01-29 | 2016-01-27 | パルプ積繊シート、及びパルプ積繊シートの製造方法 |
Country Status (4)
Country | Link |
---|---|
US (2) | US20180010271A1 (ja) |
JP (1) | JP6353085B2 (ja) |
CN (1) | CN107206621B (ja) |
WO (1) | WO2016121797A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017188248A1 (ja) * | 2016-04-28 | 2017-11-02 | 山田菊夫 | パルプ積繊シート製造方法及びパルプ積繊シート製造装置 |
WO2019027056A1 (ja) * | 2017-08-04 | 2019-02-07 | 山田菊夫 | 使い捨て繊維製品用生地及びそれを用いた使い捨て繊維製品、並びに繊維シート |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7188035B2 (ja) | 2018-11-30 | 2022-12-13 | セイコーエプソン株式会社 | 繊維体の解繊方法、解繊装置、シート製造方法、およびシート製造装置 |
CN210657388U (zh) * | 2019-02-25 | 2020-06-02 | 山田菊夫 | 具有非水解性的纤维片材 |
CN116370204A (zh) * | 2019-11-26 | 2023-07-04 | 尤妮佳股份有限公司 | 吸收性物品 |
CN114059380A (zh) * | 2020-08-06 | 2022-02-18 | 山东德泰纸业有限公司 | 一种除臭生活用纸及其制造方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008048996A (ja) * | 2006-08-25 | 2008-03-06 | Kao Corp | 吸収性物品 |
JP2010131543A (ja) * | 2008-12-05 | 2010-06-17 | Kureha Ltd | 低抵抗濾材 |
JP2010142299A (ja) * | 2008-12-16 | 2010-07-01 | Kao Corp | 吸収性物品の製造方法 |
JP2012041192A (ja) * | 2011-09-30 | 2012-03-01 | Daio Paper Corp | 粉体供給設備、及び吸収体製造設備 |
JP2014108319A (ja) * | 2012-12-04 | 2014-06-12 | Kao Corp | 積繊体の製造方法 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5264269A (en) * | 1989-09-21 | 1993-11-23 | Kao Corporation | Water-disintegratable cleaning article in laminated sheet form |
US6964726B2 (en) * | 2002-12-26 | 2005-11-15 | Kimberly-Clark Worldwide, Inc. | Absorbent webs including highly textured surface |
US20040192136A1 (en) * | 2003-03-25 | 2004-09-30 | Kimberly-Clark Worldwide, Inc. | Liquid absorbent wiping products made from airlaid webs |
US7103946B2 (en) * | 2003-09-26 | 2006-09-12 | Celanese Acetate Llc | Method and apparatus for making an absorbent composite |
CN100560011C (zh) * | 2004-08-20 | 2009-11-18 | 花王株式会社 | 膨松水解性清扫物品以及水解纸的制造方法 |
US7572504B2 (en) * | 2005-06-03 | 2009-08-11 | The Procter + Gamble Company | Fibrous structures comprising a polymer structure |
US20110021101A1 (en) * | 2009-06-29 | 2011-01-27 | Hawkins Christopher M | Modified starch based binder |
JP5441567B2 (ja) * | 2009-08-28 | 2014-03-12 | ユニ・チャーム株式会社 | 原料パルプシートから製品を製造する方法及び装置 |
US9752281B2 (en) * | 2010-10-27 | 2017-09-05 | The Procter & Gamble Company | Fibrous structures and methods for making same |
JP5649632B2 (ja) * | 2012-05-02 | 2015-01-07 | 山田 菊夫 | 水解紙の製造方法 |
CN203270365U (zh) * | 2013-05-14 | 2013-11-06 | 广东理文造纸有限公司 | 一种纸浆纤维筛选系统 |
CN103643580B (zh) * | 2013-11-28 | 2016-04-13 | 四川永丰纸业股份有限公司 | 新型纸浆纤维打浆设备 |
-
2016
- 2016-01-27 JP JP2016572089A patent/JP6353085B2/ja active Active
- 2016-01-27 US US15/545,166 patent/US20180010271A1/en not_active Abandoned
- 2016-01-27 WO PCT/JP2016/052282 patent/WO2016121797A1/ja active Application Filing
- 2016-01-27 CN CN201680006297.XA patent/CN107206621B/zh active Active
-
2019
- 2019-04-30 US US16/398,367 patent/US20190257013A1/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008048996A (ja) * | 2006-08-25 | 2008-03-06 | Kao Corp | 吸収性物品 |
JP2010131543A (ja) * | 2008-12-05 | 2010-06-17 | Kureha Ltd | 低抵抗濾材 |
JP2010142299A (ja) * | 2008-12-16 | 2010-07-01 | Kao Corp | 吸収性物品の製造方法 |
JP2012041192A (ja) * | 2011-09-30 | 2012-03-01 | Daio Paper Corp | 粉体供給設備、及び吸収体製造設備 |
JP2014108319A (ja) * | 2012-12-04 | 2014-06-12 | Kao Corp | 積繊体の製造方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017188248A1 (ja) * | 2016-04-28 | 2017-11-02 | 山田菊夫 | パルプ積繊シート製造方法及びパルプ積繊シート製造装置 |
WO2019027056A1 (ja) * | 2017-08-04 | 2019-02-07 | 山田菊夫 | 使い捨て繊維製品用生地及びそれを用いた使い捨て繊維製品、並びに繊維シート |
Also Published As
Publication number | Publication date |
---|---|
JPWO2016121797A1 (ja) | 2017-08-24 |
CN107206621A (zh) | 2017-09-26 |
JP6353085B2 (ja) | 2018-07-04 |
US20190257013A1 (en) | 2019-08-22 |
CN107206621B (zh) | 2021-06-04 |
US20180010271A1 (en) | 2018-01-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6353085B2 (ja) | パルプ積繊シート、及びパルプ積繊シートの製造方法 | |
JP2022093591A (ja) | パルプ積繊シート製造装置及びパルプ積繊シート製造方法 | |
CN109790688B (zh) | 水解性片材及该水解性片材的制造方法 | |
MX2014013291A (es) | Metodo para producir papel desintegrable con agua. | |
US20080115898A1 (en) | Method and System for Producing an Article Made of Tissue Paper or the Like Comprising a Superabsorbent Material | |
EP3150371B1 (en) | Fiber sheet | |
CN109640776B (zh) | 水解性片材和该水解性片材的制造方法 | |
JP2001277394A (ja) | 粉体充填シートの製造方法 | |
US20170332873A1 (en) | Method for manufacturing water absorbent article and absorbent article manufactured thereby | |
WO2018143095A1 (ja) | 水解性シート及び当該水解性シートの製造方法 | |
JP2013237957A (ja) | 水解紙含浸用水性薬剤 | |
JP6837058B2 (ja) | パルプ積繊シート製造方法及びパルプ積繊シート製造装置 | |
JP3236238U (ja) | パルプ積繊シート | |
WO2016108290A1 (ja) | 清浄用物品及び清浄用物品の製造方法 | |
WO2016136754A1 (ja) | 繊維シートの製造方法、その製造方法により製造された繊維シート、繊維シートを含む清掃用物品、及び繊維シートの製造装置 | |
CN210657388U (zh) | 具有非水解性的纤维片材 | |
JP2016169442A (ja) | パルプ積繊シートの製造方法、及びそれにより製造されるパルプ積繊シート | |
TWI726881B (zh) | 紙漿纖維堆積片、及紙漿纖維堆積片之製造方法 | |
JP6774338B2 (ja) | 紙シートの製造方法及び紙シート | |
JP2018083989A (ja) | 水解性シート及び当該水解性シートの製造方法 | |
JP3214107U (ja) | 使い捨てタオル | |
JP6474923B2 (ja) | 水解性シートの製造方法 | |
JP6159632B2 (ja) | 吸収体の製造方法及び製造装置 | |
JP2016169443A (ja) | 水解性パルプ積繊シート | |
WO2021015001A1 (ja) | 吸収体の製造装置および製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 16743400 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2016572089 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 15545166 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 16743400 Country of ref document: EP Kind code of ref document: A1 |