WO2004067825A1 - Tissu de pate a papier non tisse par voie seche compose de structures a couches unies - Google Patents

Tissu de pate a papier non tisse par voie seche compose de structures a couches unies Download PDF

Info

Publication number
WO2004067825A1
WO2004067825A1 PCT/JP2004/000108 JP2004000108W WO2004067825A1 WO 2004067825 A1 WO2004067825 A1 WO 2004067825A1 JP 2004000108 W JP2004000108 W JP 2004000108W WO 2004067825 A1 WO2004067825 A1 WO 2004067825A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat
fibers
pulp
dry
nonwoven fabric
Prior art date
Application number
PCT/JP2004/000108
Other languages
English (en)
Japanese (ja)
Inventor
Yasuji Yasumitsu
Yasuyuki Yamazaki
Shoji Nishigawa
Original Assignee
Kinsei Seishi Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kinsei Seishi Co., Ltd. filed Critical Kinsei Seishi Co., Ltd.
Priority to US10/542,400 priority Critical patent/US20060194498A1/en
Priority to KR1020057012188A priority patent/KR101049623B1/ko
Publication of WO2004067825A1 publication Critical patent/WO2004067825A1/fr

Links

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
    • D04H1/70—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
    • 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
    • D04H1/4374—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 using different kinds of webs, e.g. by layering webs
    • 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
    • D04H1/04—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres having existing or potential cohesive properties, e.g. natural fibres, prestretched or fibrillated artificial 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
    • D04H1/42—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
    • 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
    • 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
    • D04H1/54—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
    • D04H1/559—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 the fibres being within layered webs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/69—Autogenously bonded nonwoven fabric
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/69—Autogenously bonded nonwoven fabric
    • Y10T442/692—Containing at least two chemically different strand or fiber materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/697—Containing at least two chemically different strand or fiber materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/697—Containing at least two chemically different strand or fiber materials
    • Y10T442/698—Containing polymeric and natural strand or fiber materials

Definitions

  • the present invention relates to a dry pulp nonwoven fabric which is strong even when wet.
  • the present invention relates to a nonwoven fabric suitable for personal wipers and the like.
  • the present invention can be expected to have the same effect even when used in a dry form, since moisture is often present in these applications, and it can be used for sanitary materials such as sanitary products and diapers.
  • the present invention also relates to a nonwoven fabric which is similarly suitable for medical use. Background art
  • a method of applying a powdery binder resin is also conceivable, but in this case, it is difficult to form a film, but the adhesion point between the pulp fiber and the binder is determined. The number decreases and the number of dropped fibers tends to increase. Therefore, it is difficult to produce a dry pulp nonwoven fabric that is excellent in wet strength while ensuring a feeling that is not too hard, a moderate water absorption, a small amount of fiber falling off, and a strength that can withstand practical use.
  • Dry a pulp nonwoven fabric, catamenial absorbent insert material Ya home Oh Rui as those used in the cleaning application for industrial, consists only of binding the fibers of the surface layer having a basis weight 1 to 5 g / m 2 of A dry pulp nonwoven fabric in which the bonding fiber in the inner layer portion is 2 to 10% by weight has been proposed (Japanese Patent Application Laid-Open No. 2000-504792).
  • this non-woven fabric although it is sufficient for use in sanitary products such as absorbent insert materials for sanitary products, the strength of ordinary nonwoven fabrics is not so great as to whether it is strong even when wet, which is a major point of the present invention. No mention was made.
  • the nonwoven fabric of the technical content falling within the scope of this published patent has an inner layer having a binding fiber content of 2 to 10 weight. / 0 , it is difficult to say that it is strong even when wet, and it causes a considerable decrease in strength when wet, and is not suitable for wiping, which is completely different from the intention of the present invention.
  • the conventional nonwoven fabric has the above-mentioned problems. Disclosure of the invention
  • the present inventors have made intensive studies and as a result, optimized the basis weight of the front and back layers containing the heat-adhesive synthetic fiber, and The present inventors have found that by increasing the amount of the synthetic synthetic fibers, it is possible to obtain a dry nonwoven fabric that does not fall off the fibers, has good water absorption, and is strong, and particularly has a sufficient wet strength, and has completed the present invention.
  • thermoadhesive synthetic fiber comprising a thermoadhesive synthetic fiber, wherein the synthetic fibers are heat bonded to each other, and have a basis weight of more than 5 g Zin 2 and not more than 12 g Zm 2.
  • Pulp fiber is mixed at a ratio of 20 to 80% by weight, and the synthetic fiber and the pulp fiber are thermally bonded to each other.
  • inner layer portion is 8 ⁇ 2 4 0 g / m 2, as a whole, between the front and rear surfaces and the inner layer portion also being integrated by thermal bonding of each other the synthetic fibers, strong vertical and ® co Is between 0.8 and 1.2 for both dry and wet conditions, the ratio of strength between dry and wet conditions is between 0.6 and 1.1, and the water absorption is 8 to 2 O g is / g, and wherein the total basis weight is 2 0 ⁇ 2 5 0 g Zm 2 , dry pulp nonwoven fabric layered structure are integrated (hereinafter, simply Also referred to as a dry nonwoven fabric ”) on.
  • the nonwoven fabric of the present invention has a three-layer structure of an inner layer made of a heat-adhesive synthetic fiber and a pulp fiber, and a surface layer containing the heat-adhesive synthetic fiber sandwiching the inner layer, and is integrated by heat bonding.
  • thermoadhesive synthetic fibers which are the main component forming the surface layer or mixed with the pulp may be any as long as they are melted by heat and bonded to each other.
  • the pulp is fixed in a network structure by bonding, and fibers using a polymer having a high affinity for pulp fibers are particularly preferable.
  • polyolefins, unsaturated Examples include polyolefins grafted with carboxylic acids, polyesters, and polybutyl alcohol.
  • the polyolefin-based thermoadhesive synthetic fiber a core-sheath type or an eccentric side-by-side type composite fiber is preferable.
  • the polyolefin that forms the sheath or the outer periphery of the fiber include polyethylene and polypropylene.
  • the polymer constituting the core component or the fiber inner layer a polymer having a higher melting point than the sheath and not changing at the temperature of the heat bonding treatment is preferable.
  • Such combinations include, for example, polyethylene / polypropylene, polyethylene / polyester, polypropylene / polyester, and the like. These polymers may be modified as long as the effects of the present invention are not impaired.
  • fibril-like fibers may be used. For example, SWP of Mitsui Chemicals, Inc. and the like can be mentioned.
  • the thickness of the fiber may be selected according to the application, but the preferred fineness is 0.5 dt to 50 dt, and more preferably 0.5 dt.
  • the length of the heat-adhesive synthetic fiber is preferably from 1 to 15 mm. If the fibers are short, the mixing with the pulp becomes better and a more uniform nonwoven fabric is easily formed, but if it is less than 1 mm, it becomes powdery, making it difficult to form a mesh structure due to inter-fiber bonding, making it impossible to prevent pulp from falling off It is not preferable because the strength and strength of the nonwoven fabric are reduced, and the practicability is lacking. While 1 If the length is longer than 5 mm, the strength of the nonwoven fabric is increased, but the fibers are apt to be entangled in pneumatic transportation of the nonwoven fabric at the time of production, which is not preferred because the fiber mass defect increases. Particularly preferred is 3 to 10 mm.
  • the proportion of the heat-adhesive synthetic fiber in the surface layer is preferably 70 to 100% by weight, and more preferably 85 to 100% by weight. If the content is less than 70% by weight, the other fibers mentioned above are likely to fall off, and the effect of suppressing the falling off of the pulp in the inner layer is reduced. Occurs.
  • weight per unit area must be 1 2 gZm 2 below by more than 5 g Zm 2.
  • S gZm 2 or less the amount of synthetic fibers having water resistance and the number of bonding points between the fibers are small, so that it is not possible to ensure a sufficient wet strength enough to withstand wiping, so that the number of fibers falling off tends to increase.
  • fibers tend to fall off when used for wiping, and such nonwoven fabrics are not practical for applications such as wipers and kitchen sheets.
  • the heat-adhesive synthetic fiber and the pulp fiber are integrated by heat bonding.
  • the same or different thermoadhesive synthetic fibers may be used as the surface layer.
  • As the pulp fiber a ground pulp having a length of 0.2 mm to 5 mm is preferable.
  • the mixing ratio of the heat-adhesive synthetic fiber and the pulp fiber in the inner layer portion if the ratio of the heat-adhesive synthetic fiber is less than 20% by weight of the total of the adhesive synthetic fiber and the pulp fiber, the dropped fibers increase.
  • the strength, especially when wet, is reduced.
  • such a material can be used for applications that do not have strength but emphasize water absorption and softness, such as sanitary products, it can be used as a nonwoven fabric for wiping, which is the object of the present invention. I can't stand it.
  • it exceeds 60% by weight the amount of pulp fibers contributing to the absorption is reduced, the water wiping properties and the absorption are not only poor, but the strength is also hard and the practicality is poor.
  • balancing these is very important. Only when the ratio is within the range according to the present invention, a nonwoven fabric having sufficient water absorbency and sufficient strength even when wet can be obtained. In addition, the amount of the dropped fibers is small, and such a nonwoven fabric has sufficient strength to be washed, squeezed and dried even if it becomes dirty, and can be used several times. In addition, since the ratio of thermosynthetic fibers is large, the bulk is small and it can be made thin, so that it has excellent handling properties and saves energy. Also useful for space.
  • the heat-adhesive synthetic fibers and the heat-adhesive synthetic fibers and the pulp fibers are heat-bonded.
  • Basis weight of the inner layer 8 ⁇ 2 4 0 gZm 2 is preferred. If it is less than 8 gZm 2 , the amount of pulp is too small and the water absorption is insufficient. On the other hand, if it exceeds 24 Og / m 2 , the whole becomes plate-like and is not suitable for this application.
  • the entire nonwoven fabric is also integrated between the front and back surfaces and the inner layer portion by heat bonding of the heat-bondable synthetic fibers. Furthermore, it has sufficient heat sealing properties.
  • Such a nonwoven fabric may be manufactured by any method as long as it is a dry nonwoven fabric, but a nonwoven fabric formed by an airlaid method is preferable.
  • Nonwoven fabrics manufactured by the airlaid method are preferred because the fibers forming the nonwoven fabric are randomly and three-dimensionally oriented in the longitudinal, width and thickness directions of the nonwoven.
  • the nonwoven fabric by the airlaid method can be obtained as follows.
  • a predetermined amount of defibrated heat-adhesive synthetic fibers are transported while being uniformly dispersed in the airflow, and the fibers blown out from a screen having pores provided in the discharge section are installed at the bottom.
  • the fiber is deposited on the net while dropping it on a metal or plastic net that has been dropped and sucking air at the bottom of the net.
  • a mixture of the heat-adhesive synthetic fiber and the pulp fiber is similarly deposited on the above-mentioned deposition sheet. Further, fibers mainly composed of thermo-adhesive synthetic fibers are deposited on these sheets.
  • the whole is heat-treated to a temperature at which the heat-adhesive synthetic fiber sufficiently exhibits its adhesive effect, whereby the dry pulp nonwoven fabric of the present invention can be obtained.
  • a heat treatment at a temperature higher by 15 to 40 ° C than the melting point of the bonding component of the heat-bondable synthetic fiber is necessary.
  • the nonwoven fabric manufactured by the airlaid method can randomly orient the fibers three-dimensionally in the flow direction, width direction, and thickness direction of the nonwoven fabric. Since these are thermally bonded, delamination does not occur. In addition, nonwoven fabrics manufactured by the airlaid method have good uniformity, so that the dispersion in performance is reduced.
  • the ratio of the strength of warp to the width must be 0.8 to 1.2, preferably 0.85 to 1.2, both when dry and when wet. If one of the strengths is low, practical problems are likely to occur. Also, the ratio of strength between dry and wet should be 0.6-1.1, preferably 0.7-1.1.
  • a nonwoven fabric having a strength of less than 0.6 greatly reduces wet strength compared to dryness, that is, weakens when wetted, which deviates from the intended purpose of the present invention and causes practical problems. Also, when wet, the strength increases due to the surface tension between the fibers due to the presence of moisture, which may exceed 1, which is also within the scope of the present invention. It is not usually more than one.
  • Wipers, kitchen sheets, sanitary materials, and the like to which the nonwoven fabric of the present invention is applied need to have an appropriate water absorbing property, and the water absorbing property is 8 to 2 OgZg, preferably 10 to : 18 g Z g must be. If it is less than 8 g / g, the wiping property and the water retention property in practical use are lacking, and there is a problem in practical use. On the other hand, if it exceeds 20 g / g, the amount of moisture retained by the nonwoven fabric itself is too large, and there is a problem in handleability.
  • the basis weight of the whole nonwoven fabric is preferably 2 0 ⁇ 2 5 0 g / / m , depending on APPLICATIONS, it is possible to select an appropriate basis weight.
  • the nonwoven fabric of the present invention may be integrated with other sheets as long as the intention of the present invention is not impaired.
  • the nonwoven fabric of the present invention can be easily formed into a composite sheet by placing the breathable sheet on a wire mesh and depositing fibers on the wire mesh. be able to.
  • Examples of the sheet to be integrated include commonly known dry nonwoven fabric, wet nonwoven fabric, paper, spunbond, melt-pro, plastic net, perforated film, split yarn cloth, coarse woven knitted fabric, and cold gauze.
  • a sheet made of a heat-adhesive material is preferable, and the air permeability is preferably high.
  • the basis weight of the front and back layers containing the heat-adhesive synthetic fibers is optimized, and the amount of the heat-adhesive synthetic fibers in the inner layer is increased, so that the fibers are prevented from falling off and the non-woven fabric is not impaired. It has become possible to increase the strength of the product to withstand wet use and repeated use. In addition, water and oil wiping properties were good, there was no delamination, and a nonwoven fabric very suitable for wiping applications could be obtained. Further, the nonwoven fabric of the present invention has a sufficient heat sealing property. It is also suitable for sanitary products, sanitary materials such as diapers, and medical applications.
  • the nonwoven fabric of the present invention has no concern about residual monomer due to the chemical binder resin, and is hygienic.o
  • Example 1 will be described with reference to examples, but the present invention is not limited to these examples.
  • a core-sheath composite fiber (Teijin Fiber Co., Ltd.'s F6.2.2 dt, length 5 mm) with a core of polyethylene terephthalate and a sheath of polyethylene is used as the heat-adhesive fiber for the front and back layers.
  • a composite fiber with a core of polypropylene and a sheath of copolymerized polyethylene (Nisso Polypro Fiber Co., Ltd., Intac.
  • the weight of the front and back layers was 6 g / m 2 , and the weight of the inner layer was 33 g / m 2 .
  • the thickness was 0.54 mm.
  • Table 1 shows the properties of vertical and horizontal strengths, their ratios, their ratios when dry and wet, and their water absorption.
  • the strength and water absorption were measured by the following methods.
  • a non-woven fabric was manufactured by the air laid method in the same manner as in Example 1 except that m 2 was used.
  • the thickness was 0.68 mm.
  • Nonwoven fabric was manufactured by the method.
  • Front and back layer portions 4 a basis weight of g / m 2, the ratio of the adhesive composite fibers and pulp of the inner layer portion 8/9 2, except that the basis weight and 5 2 g / m 2 is in the in Example 1 and same as Nonwoven fabric was manufactured by the airlaid method.
  • the air laid method was the same as in Example 1 except that the basis weight of the front and back layers was 16 gZm 2 , the ratio of the adhesive conjugate fiber to pulp in the inner layer was 70/30, and the basis weight was 23 g / m 2.
  • An air-laid nonwoven fabric made of only pulp with a basis weight of 58 g Zm 2 was prepared, and impregnated with emulsion of polyacrylic acid ester resin at a solid content of 8 g / m 2, and hot air temperature was 130 The resin was dried at ° C to form a resin-type air-laid nonwoven fabric.
  • Table 1 shows the physical properties of the nonwoven fabrics obtained in the above Examples and Comparative Examples.
  • composition PP / PE double 30% 25% 40% 8% 70%
  • the dry pulp nonwoven fabric having the layered structure integrated according to the present invention is used for an object-type wiper for floors, kitchens, automobiles, etc., used for cleaning, cooking utensils cleaning, food wiping, drip absorption, etc. It is suitable for use on kitchen seats, personal wipers such as faces, hands, and bodies. Further, it is similarly suitable for sanitary products, sanitary materials such as diapers, and medical applications.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

L'invention concerne un tissu de pâte à papier non tissé par voie sèche composé de structures à couches unies, qui comprend une partie couche superficielle, sur chaque côté, comprenant des fibres synthétiques thermosoudables thermosoudées les unes aux autres ayant un poids de base de 5 à 12 g/m2, à l'exclusion de 5 g/m2 ; et une partie couche centrale comprenant 20 à 60 % en poids de fibres synthétiques thermosoudables et 80 à 40 % en poids de fibres de pâtes à papier, les fibres synthétiques ayant été thermosoudées les unes aux autres et/ou les fibres synthétiques et les fibres de pâte à papier ayant été soudées les une aux autres, et ayant un poids de base de 8 à 240 g/m2. Les couches superficielles avant et arrière ainsi que la partie couche centrale dans leur ensemble ont également été unies par thermosoudage des fibres synthétiques. Le rapport de la résistance du tissu dans le sens de la longueur et dans le sens travers est de 0,8 à 1,2 dans un état sec et dans un état humide. Le rapport de la résistance du tissu à l'état sec et à l'état humide est de 0,6 à 1,1. En outre, l'absorption d'eau du tissu est de 8 à 20 g/g, son poids de base total étant de 20 à 250 g/m2. Le tissu de pâte à papier non tissé par voie sèche ainsi obtenu, qui est exempt de débourrage, absorbe l'eau de manière satisfaisante, et possède une résistance à l'humidité élevée, peut donc être utilisé notamment comme chiffon d'essuyage et feuille de cuisine, que l'on emploie à l'état humide.
PCT/JP2004/000108 2003-01-20 2004-01-09 Tissu de pate a papier non tisse par voie seche compose de structures a couches unies WO2004067825A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US10/542,400 US20060194498A1 (en) 2003-01-20 2004-01-09 Dry-process nonwoven pulp fabric composed of united layer structures
KR1020057012188A KR101049623B1 (ko) 2003-01-20 2004-01-09 층상의 구조가 일체화된 건식 펄프 부직포

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003-010530 2003-01-20
JP2003010530A JP4225408B2 (ja) 2003-01-20 2003-01-20 層状の構造が一体化された乾式パルプ不織布

Publications (1)

Publication Number Publication Date
WO2004067825A1 true WO2004067825A1 (fr) 2004-08-12

Family

ID=32820526

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2004/000108 WO2004067825A1 (fr) 2003-01-20 2004-01-09 Tissu de pate a papier non tisse par voie seche compose de structures a couches unies

Country Status (6)

Country Link
US (1) US20060194498A1 (fr)
JP (1) JP4225408B2 (fr)
KR (1) KR101049623B1 (fr)
CN (1) CN1738934A (fr)
TW (1) TW200417644A (fr)
WO (1) WO2004067825A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7465684B2 (en) * 2005-01-06 2008-12-16 Buckeye Technologies Inc. High strength and high elongation wipe
JP2007197848A (ja) * 2006-01-24 2007-08-09 Kinsei Seishi Kk 洗浄用不織布クリーナー
JP4840811B2 (ja) * 2006-08-18 2011-12-21 金星製紙株式会社 食品用複合吸水マット
JP4855241B2 (ja) * 2006-12-26 2012-01-18 金星製紙株式会社 除吸放出性シートおよびその製造方法
US7585797B2 (en) 2007-04-30 2009-09-08 Kimberly-Clark Worldwide, Inc. Layered dispersible substrate
JP2009196143A (ja) * 2008-02-20 2009-09-03 Fukusuke Kogyo Co Ltd 吸水シートとその製造方法
CN102733093B (zh) * 2012-07-20 2014-04-23 浙江金三发非织造布有限公司 一种浆粕气流成网水刺复合非织造布的生产工艺
KR101604858B1 (ko) 2014-07-17 2016-03-21 (주)크린앤사이언스 무전해 및 전해 도금의 연속 공정을 이용한 부직포의 도금방법
JP5728113B1 (ja) * 2014-07-25 2015-06-03 ユニチカ株式会社 吸着材
JP6458657B2 (ja) * 2015-06-12 2019-01-30 王子ホールディングス株式会社 蒸散性不織布
CN106835498A (zh) * 2017-02-22 2017-06-13 昆山科立隆非织造布有限公司 含抗菌竹浆的可冲散可降解干湿巾用无纺布
JP6542458B1 (ja) * 2018-09-28 2019-07-10 ユニ・チャーム株式会社 化粧用シート
CN111074689B (zh) * 2019-12-31 2022-05-03 杭州洁诺实业有限公司 复合纸的生产方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04297215A (ja) * 1991-03-26 1992-10-21 Kao Corp 清掃用シート
JPH08176944A (ja) * 1994-12-21 1996-07-09 Kinsei Seishi Kk 紙ナプキン
WO2000038565A1 (fr) * 1998-12-31 2000-07-06 Kimberly-Clark Worldwide, Inc. Lingette multicouche
WO2001079599A2 (fr) * 2000-04-13 2001-10-25 The Procter & Gamble Company Non tisse souple, epais et non pelucheux
JP2001314360A (ja) * 2000-05-11 2001-11-13 Crecia Corp ワイパー基布
JP2003096653A (ja) * 2001-09-27 2003-04-03 Teijin Ltd 不織布構造体
JP2004060108A (ja) * 2002-07-30 2004-02-26 Teijin Ltd 吸水性不織布構造体

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6278037B1 (en) * 1997-03-27 2001-08-21 The Procter & Gamble Company Absorbent article having improved comfort during use by improved fit even when loaded and improved rewet performance

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04297215A (ja) * 1991-03-26 1992-10-21 Kao Corp 清掃用シート
JPH08176944A (ja) * 1994-12-21 1996-07-09 Kinsei Seishi Kk 紙ナプキン
WO2000038565A1 (fr) * 1998-12-31 2000-07-06 Kimberly-Clark Worldwide, Inc. Lingette multicouche
WO2001079599A2 (fr) * 2000-04-13 2001-10-25 The Procter & Gamble Company Non tisse souple, epais et non pelucheux
JP2001314360A (ja) * 2000-05-11 2001-11-13 Crecia Corp ワイパー基布
JP2003096653A (ja) * 2001-09-27 2003-04-03 Teijin Ltd 不織布構造体
JP2004060108A (ja) * 2002-07-30 2004-02-26 Teijin Ltd 吸水性不織布構造体

Also Published As

Publication number Publication date
KR20050096108A (ko) 2005-10-05
CN1738934A (zh) 2006-02-22
JP2004263307A (ja) 2004-09-24
TWI324195B (fr) 2010-05-01
TW200417644A (en) 2004-09-16
KR101049623B1 (ko) 2011-07-14
US20060194498A1 (en) 2006-08-31
JP4225408B2 (ja) 2009-02-18

Similar Documents

Publication Publication Date Title
CA2155315C (fr) Articles lies par piqures et procede de fabrication connexe
AU2010310819B2 (en) Porous multilayer articles and methods of making
CA2736186C (fr) Lingette composite
WO2004067825A1 (fr) Tissu de pate a papier non tisse par voie seche compose de structures a couches unies
JP2000510200A (ja) 耐久性をもったスパンレース加工繊維布構造物
KR20060006046A (ko) 고강도 부직포
JP6259365B2 (ja) クッキングペーパーとその製造方法
JP4361202B2 (ja) メルトブローン不織布を含む吸音材
US20140259491A1 (en) Multi-layered cleaning cloth
CN1323574A (zh) 一种复合不织布制品和其制法
JP3450691B2 (ja) 液吸放出性シート及びその製造方法
JP2002105826A (ja) 開孔不織布及びその製造方法
JP4301398B2 (ja) 積層一体化された食品用吸水マット
JP2004261449A (ja) ウェットワイパー用シート
JP2004016559A (ja) 清掃用シート
JP4470196B2 (ja) 親水性不織布
JP5106207B2 (ja) タイルカーペット
JP2010259633A (ja) 清掃シート及びその製造方法
JPS6334661Y2 (fr)
JPH01314545A (ja) ワイピングクロス
JPH0931815A (ja) 繊維集合体およびその製造方法
JP2004100068A (ja) 嵩高複合不織布
JP3153792U (ja) 耐熱性調理用シート
JP2005112402A (ja) 吸水能力に優れた食品用吸水マット
JPH07101571B2 (ja) 走水防止用ラッピング材

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): BW GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 1020057012188

Country of ref document: KR

WWE Wipo information: entry into national phase

Ref document number: 2006194498

Country of ref document: US

Ref document number: 10542400

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: 20048024922

Country of ref document: CN

WWP Wipo information: published in national office

Ref document number: 1020057012188

Country of ref document: KR

122 Ep: pct application non-entry in european phase
WWP Wipo information: published in national office

Ref document number: 10542400

Country of ref document: US