WO2009082128A1 - Serviette à feuilles non tissées saillantes pour améliorer le nettoyage et renforcer la capacité d'absorption d'eau - Google Patents

Serviette à feuilles non tissées saillantes pour améliorer le nettoyage et renforcer la capacité d'absorption d'eau Download PDF

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Publication number
WO2009082128A1
WO2009082128A1 PCT/KR2008/007525 KR2008007525W WO2009082128A1 WO 2009082128 A1 WO2009082128 A1 WO 2009082128A1 KR 2008007525 W KR2008007525 W KR 2008007525W WO 2009082128 A1 WO2009082128 A1 WO 2009082128A1
Authority
WO
WIPO (PCT)
Prior art keywords
nonwoven fabric
protrusions
nonwoven
towel
fibrous
Prior art date
Application number
PCT/KR2008/007525
Other languages
English (en)
Inventor
Jae Hun Shim
Seong Sik Kim
Original Assignee
Kumkangpold 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
Priority claimed from KR1020080123281A external-priority patent/KR101240369B1/ko
Application filed by Kumkangpold Co., Ltd. filed Critical Kumkangpold Co., Ltd.
Priority to US12/810,308 priority Critical patent/US20100269283A1/en
Publication of WO2009082128A1 publication Critical patent/WO2009082128A1/fr

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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
    • D04H1/58—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
    • D04H1/64—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 the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
    • D04H1/645—Impregnation followed by a solidification process
    • D04H1/65—Impregnation followed by a solidification process using mixed or composite 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
    • 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
    • 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
    • D04H13/00—Other non-woven fabrics
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
    • A47K10/24—Towel dispensers, e.g. for piled-up or folded textile towels; Toilet-paper dispensers; Dispensers for piled-up or folded textile towels provided or not with devices for taking-up soiled towels as far as not mechanically driven
    • A47K10/32—Dispensers for paper towels or toilet-paper
    • A47K2010/3266—Wet wipes

Definitions

  • the present invention relates to non woven towels having protrusions, and more particularly, to a nonwoven towel having protrusions and improved cleaning and water- absorbing capacity, in which nonwoven fabric has fibrous wrinkled protrusions thereon, thus imparting the functionality of many small protrusions of a fiber towel, and has therein recesses structured by perforations caused by punching, thus realizing cleaning and water-absorbing capacity.
  • the nonwoven towel having protrusions according to the present invention is adapted for use as a wet towel, a wet tissue, a handkerchief, a makeup remover, a dishwashing sponge, an electrostatic dustcloth and so on, and is classified depending on whether the fibrous wrinkled protrusions and the perforations caused by the punching are respectively present on and in the nonwoven fabric.
  • the nonwoven towel according to the present invention has fibrous wrinkled protrusions and thus exhibits skin cleansing, wiping, cleaning, dishwashing, and dewatering abilities.
  • a disposable wet towel or a disposable wet tissue is widely used in city life.
  • the disposable wet towel composed of a fabric which cleans is not repeatedly used but is discarded after a single use, thus blocking the use of the wet towel as a propagation path of bacteria.
  • the disposable wet towel is provided for wiping the hand of a user in a restaurant and so on, wiping the excretion of a baby in the course of caring for the baby, and wiping the body of a patient as part of treatment in a hospital.
  • a problem of a conventional disposable nonwoven wet towel or tissue is that the surface of a nonwoven tissue should be layered with protrusions of fibers of nonwoven fabric.
  • nonwoven fabric used for manufacturing nonwoven products such as disposable wet tissues or towels include spunlace nonwoven fabric, hydrophilic treated polypropylene (PP) meltblown nonwoven fabric, and other hydrophilic treated PP nonwoven fabric.
  • PP indicates polypropylene.
  • the aforementioned nonwoven fabric has a flat surface and a smooth texture, and thus has adhesion and cleaning capacity inferior to those of a fiber towel having fibrous protrusions thereon. Upon contact with the skin of a user, the nonwoven fabric is smooth and does not have any scraping ability and thus gives a different texture to the user.
  • the surface of the nonwoven fabric is layered with an embossing pattern to increase the adhesion of the conventional nonwoven wet towel.
  • the embossing pattern of the nonwoven wet towel is obtained by forming recesses having a depth of about 50 to the surface of a nonwoven fabric having a thickness of about 400.
  • the recesses formed as the embossing pattern in the surface of the nonwoven fabric may improve adhesion and flexibility of the nonwoven fabric to some degree but have very poor adhesion compared to the fibrous wrinkled protrusions of a fiber towel.
  • Korean Patent Unexamined Publication No. 10-1998-0086503 points out the skin troubles of a user caused by a nonwoven wet towel containing a surfactant, a fungicide and a preservative.
  • Inexpensive nonwoven fabric usable as a replacement for a woven wet towel is PP-based nonwoven fabric having a basis weight of 5 to 80 g/.
  • the commercially available wet towel or tissue is composed mainly of hydrophilic treated PP meltblown nonwoven fabric.
  • PP spunbond nonwoven fabric nonwoven fabric obtained by layering PP spunbond and meltblown nonwovens in a single process, and spunlace nonwoven fabric. IHbwever, the PP-based nonwoven fabric consists of a hydrophobic fiber layer having no ability to absorb water.
  • the PP nonwoven fabric When water drops on the inclined surface of the PP nonwoven fabric not subjected to hydrophilic treatment, water does not wet the surface of the nonwoven fabric but flows down. In order to cause the hydrophobic PP nonwoven fabric to absorb water, the PP nonwoven fabric should be coated with a hydrophilic agent.
  • a hydrophilic agent is a surfactant series chemical similar to a detergent such as soap or shampoo.
  • a further problem of the disposable wet towel is the use of the chemicals contained in the wet towel.
  • chemicals such as a disinfecting agent, an aloohol, a fungicide, a preservative and a surfactant for increasing cleaning capacity are contained in a solution in which the wet towel is dipped.
  • the chemical such as the surfactant or the alcohol functions to prevent the deterioration of the conventional disposable wet tissue or towel during the shelf life storage period and increase cleaning capacity thereof.
  • non woven fabric used for cleaning purposes include kitchen towels, electrostatic dustcloths, makeup removers and so on.
  • the kitchen towel, the electrostatic dustcloth, the makeup remover and so on are relatively expensive and have no fibrous protrusions and poor cleaning capacity. Hence, there is a need for a material being inexpensive and having improved cleaning capacity. Disclosure of Invention Technical Problem
  • the present invention has been made keeping in mind the above problems occurring in the related art, and the present invention provides an absorbent nonwoven towel having protrusions and improved cleaning capacity, which is of a novel type for those using PP-based nonwoven fabric as a wet towel.
  • the present invention provides a nonwoven towel having protrusions, in which fibrous wrinkled protrusions are formed on the surface of nonwoven fabric so as to impart the functionality of many small protrusions of a fiber towel.
  • the present invention provides a nonwoven towel having protrusions, in which fibrous wrinkled protrusions are arranged on the surface of nonwoven fabric, and thus, upon contact with the skin, there is no difference in texture and adhesion and scraping ability are improved.
  • the present invention provides a nonwoven towel having protrusions, in which fibrous wrinkled protrusions are arranged on the surface of nonwoven fabric, the nonwoven fabric is fluffed out to reduce fiber density so as to increase cushioning capacity, recesses are structured in the nonwoven fabric by perforations caused by punching, and embossing treatment is performed to thus form unevenness, thus increasing adhesion and cleaning capacity.
  • the present invention provides an absorbent nonwoven towel having protrusions, in which fibrous wrinkled protrusions are formed on the surface of nonwoven fabric thus increasing adhesion and cleaning capacity, thereby obviating a need for an impurity such as a surfactant coming from a solution for wetting a disposable nonwoven wet towel.
  • the present invention provides a nonwoven towel having protrusions, in which fibrous wrinkled protrusions are formed on the surface of nonwoven fabric thus improving the soft touch, scraping ability and cleaning capacity and enhancing water- absorbing capacity, thereby decreasing a need for hydrophilic treatment.
  • the present invention provides a hydrophobic nonwoven towel having protrusions with water-absorbing capacity, in which fibrous wrinkled protrusions are formed on the surface of hydrophobic nonwoven fabric, the density of the nonwoven fabric is reduced, recesses are structured in the nonwoven fabric by perforations caused by punching, and corona treatment is performed, thus enhancing cleaning capacity.
  • the present invention provides a dishwashing sponge which may be sanitarily used and which is capable of reducing the amount of a detergent to be used, an electrostatic dustcloth and other dustcloths which generate more static electricity to easily remove dust, and a makeup remover and a facial cleansing towel for easily removing makeup and makeup residues from skin wrinkles, thanks to the improved cleaning capacity of the nonwoven fabric having protrusions.
  • the present invention provides a nonwoven towel having protrusions and enhanced cleaning and water-absorbing capacity, which is suitable for use in novel types of disposable wet towels, disposable wet tissues, handkerchiefs, makeup removers, dishwashing sponges, and electrostatic dustcloths, which are necessary for daily life.
  • a nonwoven towel having protrusions and improved cleaning and water-absorbing capacity suitable for use as any one selected from among a wet towel, a wet tissue, a handkerchief, a makeup remover, a dishwashing sponge and an electrostatic dustcloth, manufactured by press punching a nonwoven fabric made of fibers having a denier of 0.1-10 selected from among a polyolefin-based hydrophobic nonwoven fabric having a basis weight of 5-80 g/ including a polypropylene-based hydrophobic nonwoven fabric not subjected to hydrophilic treatment and an absorbent nonwoven fabric having a basis weight of 5-80 g/, using heated pins, so that the nonwoven fabric has fibrous wrinkled protrusions having a height of 0.1-5 mm on one surface thereof and thus has a reduced fiber density and has recesses structured by perforations having a perforation rate of 5-50% caused by the punching in the surface thereof opposite the surface having the fibrous wrinkled protru
  • the nonwoven towel having protrusions has a reduced fiber density thanks to fibrous wrinkled protrusions, recesses structured by perforations caused by punching, increased elasticity thanks to the totally reduced fiber density of the nonwoven fabric and embossed unevenness, and thus exhibits improved cleaning and water-absorbing capacity at a lower price, as compared to conventional cleaning nonwoven products.
  • products made of the nonwoven towel according to the present invention are expected to increase the expediency of daily life activities, be beneficial to the health, and reduce the use of detergents.
  • FIG. 1 is a schematic view showing a punching apparatus according to the present invention
  • FIG. 2 is a schematic view showing another punching apparatus according to the present invention.
  • FIG. 3 is a schematic view showing a state in which the nonwoven fabric is punched with a punch and a pocket according to the present invention
  • FIG. 4 is an enlarged cross-sectional view showing an absorbent nonwoven towel having protrusions according to the present invention
  • FIG. 5 is an enlarged top plan view showing the absorbent nonwoven towel having protrusions according to the present invention.
  • FIG. 6 is an enlarged cross-sectional view showing a nonwoven towel composite having protrusions according to the present invention.
  • a single-layered nonwoven towel having protrusions is manufactured by punching nonwoven fabric made of fibers having a denier of 0.1-10 so that the nonwoven fabric has absorbent fibrous wrinkled protrusions having a height of 0.1-5 mm on one surface thereof and thus has a reduced fiber density, and the nonwoven fabric has recesses structured by perforations caused by the punching in the surface of the nonwoven fabric opposite the surface having the fibrous wrinkled protrusions, whereby the nonwoven fabric is totally fluffed out.
  • a two-layered nonwoven towel having protrusions is manufactured by stacking two layers of the nonwoven fabric having protrusions one on another so that the fibrous wrinkled protrusions thereof are disposed outwards, the nonwoven fabric being selected from among hydrophobic nonwoven fabric having protrusions and absorbent nonwoven fabric having protrusions, and pressing them along an embossing pattern of an embossing roll of an ultrasonic sealer, thus imparting an embossed pattern and embossed unevenness to the surfaces having fibrous wrinkled protrusions.
  • a three-layered nonwoven towel having protrusions is manufactured by stacking two layers of the nonwoven fabric having protrusions one on another so that fibrous wrinkled protrusions thereof are disposed outwards, sandwiching a layer of absorbent nonwoven fabric or paper towel between the two layers of the nonwoven fabric having protrusions, and pressing them along an embossing pattern of an embossing roll of an ultrasonic sealer, thus imparting embossed unevenness to the surface having fibrous wrinkled protrusions.
  • a one or more-layered non woven towel having protrusions is manufactured by pressing the non woven towel having fibrous wrinkled protrusions along an embossing pattern of an embossing roll of an ultrasonic sealer, thus imparting unevenness and reducing the lint of the nonwoven fabric.
  • the hydrophobic polyolefin-based nonwoven fabric may be increased in water ab- sorptiveness through oorona treatment.
  • the nonwoven fabric of the punched nonwoven towel having protrusions enables the use of the hydrophobic polyolefin-based nonwoven fabric as a wet towel or a wet tissue.
  • the nonwoven towel according to the present invention may be applied in various objects including wet towels, wet tissues, makeup removers, dishwashing sponges, handkerchiefs, and electrostatic dustcloths.
  • the material for the nonwoven towel having protrusions is hydrophobic nonwoven fabric or absorbent nonwoven fabric having a basis weight of 5-80 g/.
  • hydrophobic nonwoven fabric examples include polyolefin-based nonwoven fabric, including polyolefin-based spunbond nonwoven fabric (S), polyolefin-based meltblown nonwoven fabric (M), nonwoven fabric (SMS, SMMS) resulting from layering of polyolefin-based spunbond nonwoven fabric (S) and polyolefin-based meltblown nonwoven fabric (M), and polyolefin-based thermal bond nonwoven fabric.
  • the fiber material mainly used for the polyolefin-based nonwoven fabric is PP, and the other examples thereof include copolymers of propylene and ethylene, bi- oomponent fibers of PP and polyethylene, and polyethylene.
  • absorbent nonwoven fabric examples include nonwoven fabric obtained by coating the surface of the hydrophobic polyolefin-based nonwoven fabric with a hy- drophilic agent, spunlace nonwoven fabric, air through nonwoven fabric, air-laid nonwoven fabric, polyester nonwoven fabric, and polyolefin-based nonwoven fabric containing viscose fibers or polyester fibers.
  • the nonwoven fabric adapted for the present invention is the hydrophobic polyolefin-based nonwoven fabric or the absorbent polyolefin-based nonwoven fabric which is inexpensive, has a high fiber content and facilitates the formation of protrusions.
  • the polyolefin-based spunbond nonwoven fabric (S) is manufactured by melting a
  • PP material in an extruder spinning the molten resin from a spinning nozzle to obtain fibers having a denier of 1-5, heat pressing the spun fibers into a sheet form using a heated roll, and curing the sheet, thus obtaining a nonwoven fabric in a sheet form having a high fiber density and being thin.
  • the punched nonwoven fabric having protrusions according to the present invention permits, even with the use of the hydrophobic polyolefin-based nonwoven fabric not subjected to hydrophilic treatment, the penetration of water, on account of the fibrous wrinkled protrusions having a reduced fiber density in the form of loop protrusions of elastic fibers of the nonwoven fabric, the perforations of the nonwoven fabric and the totally reduced fiber density of the punched nonwoven fabric. Further, the hydrophobic nonwoven fabric is subjected to oorona treatment to enhance water-absorbing capacity and thus may be used as a wet towel and a wet tissue.
  • the hydrophobic nonwoven fabric in order to enhance the penetration of water into the hydrophobic nonwoven towel having protrusions not subjected to hydrophilic treatment, the hydrophobic nonwoven fabric is subjected to oorona treatment, thus increasing water-absorbing capacity.
  • oorona discharge treatment is mainly oonducted on the surface of a plastic film before printing, so that ink efficiently attaches to the surface of the film.
  • the nonwoven fabric is subjected to oorona discharge treatment, whereby water efficiently attaches and is absorbed by the nonwoven towel having protrusions.
  • oorona discharge treatment water efficiently attaches and is absorbed by the nonwoven towel having protrusions.
  • water-absorbing capacity is increased upon contact of the nonwoven towel with water, and the oontact angle of water is increased upon dropping of water on the nonwoven towel.
  • the nonwoven towel having protrusions which is the most eoonomical, sanitary and inexpensive, is a single-layered nonwoven towel having protrusions obtained by heat pressing and pin punching hydrophobic PP spunbond nonwoven fabric having about 5-80 g/, so that the nonwoven fabric has fibrous wrinkled protrusions on one surface thereof and recesses structured by perforations having a perforation rate of 5-50% caused by the punching in the other surface thereof, totally reducing the fiber density of the nonwoven fabric; pressing the nonwoven fabric with an embossing line thus reducing the lint of the nonwoven fabric and imparting embossed unevenness; and subjecting the nonwoven fabric to oorona treatment, thus increasing cleaning and water-absorbing capacity.
  • the fibrous wrinkled protrusions thereof are preferably disposed outwards, as shown in FIG. 6.
  • a nonwoven towel having protrusions is manufactured from the absorbent nonwoven fabric.
  • the nonwoven towel having protrusions is provided in the form of a three-layered composite, as shown in FIG. 3, the hydrophobic or absorbent nonwoven fabric is pin punched thus producing nonwoven fabric 24 having fibrous wrinkled protrusions 23, and a layer of absorbent nonwoven fabric 27 or paper tissue may be sandwiched between two layers of the nonwoven fabric 24.
  • a layer of absorbent nonwoven fabric 27 or paper tissue may be sandwiched between two layers of the nonwoven fabric 24.
  • water-absorbing capacity becomes very good, and thus the resulting product may be used as a handkerchief.
  • the layers are pressed by ultrasonic embossing, using a heated embossing roll or using a hot melt adhesive.
  • ultrasonic embossing facilitating the formation of unevenness.
  • FIG. 1 shows the apparatus for punching the nonwoven fabric.
  • the punching process for forming the fibrous wrinkled protrusions is performed by unwinding nonwoven fabric 21 from a nonwoven fabric feeding roll 20, passing the nonwoven fabric 21 through a roll 11 having heated pin punches 11a and a roll 12 having heated pockets 12a thus press punching the nonwoven fabric, and then rewinding the nonwoven towel having protrusions on a roll 22.
  • the bundle of fibers of the nonwoven fabric sheet is protruded in the form of loop protrusions from the surface of the nonwoven fabric opposite the surface having the perforations 23 a.
  • the elastic fibers are fluffed out and thus constitute a bundle of loops of elastic fibers having a reduced fiber density.
  • the nonwoven fabric is manufactured into the absorbent nonwoven towel 24 having protrusions in which the fibrous wrinkled protrusions 23 are formed on one surface of the nonwoven fabric to be similar to the protrusions of a woven towel.
  • FIG. 2 shows another punching roll.
  • the punching process for protruding the fibrous wrinkled protrusions is performed by unwinding PP nonwoven fabric 21 from a nonwoven fabric feeding roll 20, passing it through a roll 11 having heated pin punches 11a and a roll 12 having pockets 12a thus primarily punching the nonwoven fabric, passing the punched nonwoven fabric through the roll 11 having pin punches and a roll 13 having pockets 13a to thus secondarily punch it, and then rewinding the nonwoven towel having protrusions on a roll 22.
  • the nonwoven fabric is punched using a pin punch roll set.
  • the pin punch roll is constructed such that pin punches with mountain- shaped ends are arranged on the roll and then heated for thermal forming of the nonwoven fabric.
  • the detailed dimension of the pin punches is set depending on the size and the height of the protrusions to be formed on the nonwoven fabric.
  • the base pocket roll for supporting the nonwoven fabric and protruding elastic fibers in the form of protrusions.
  • the base pocket roll includes, in the surface of the roll, forming pockets respectively corresponding to the pin punches of the pin punch roll.
  • the detailed dimension of the pockets is set depending on the size and the height of the protrusions of the elastic fibers to be formed on the nonwoven fabric.
  • the nonwoven fabric in a sheet form is heated and punched between the heated pin punch roll and the heated pocket roll, and the elastic fibers protrude in the bundle of loops and are cured, thus forming the fibrous wrinkled protrusions having a desired density and size on the surface of the nonwoven fabric.
  • the pin punch roll 11 having about 130,000 pin punches 11a arranged per about 1 square meter is used.
  • the pocket roll 12, 13 corresponding to the pin punch roll has about 130,000 forming pockets 12a per about 1 square meter.
  • the pin punch roll 11 very precisely corresponds to the pocket roll 12, 13, and these rolls are used to perform precise heat punching so that the fibrous wrinkled protrusions which are the bundle of loops of such elastic fibers are arranged on the surface of the nonwoven fabric.
  • the flat nonwoven fabric sheet is punched between the heated punch roll and the heated pocket roll so that the fibers fluff out and are provided in the form of protrusions on one surface of the nonwoven fabric.
  • the distribution of the fibrous wrinkled protrusions is determined by the density of the pin and the diameter of the pin body in the pin punch roll.
  • the perforations are formed in the nonwoven fabric because of the heat punching which forms the protrusions on one surface of the nonwoven fabric. As such, the perforations distributed in the nonwoven towel function to increase water-absorbing capacity and improve cleaning capacity due to the recesses structured by the perforations.
  • the fibrous wrinkled protrusions of the nonwoven fabric formed using the pin punch roll and the pocket roll function to impart the surface of the nonwoven fabric with a fiber texture similar to that of a woven towel and adhesion.
  • the loop protrusions of the elastic fibers of the nonwoven fabric are formed with microfibers having a denier of 0.1-10.
  • the nonwoven towel according to the present invention comes into close contact with the skin and is very soft to the touch, resulting in no damage to the skin and no irritation.
  • the fibrous wrinkled protrusions of the nonwoven fabric exhibit superior adhesion and cleaning capacity, and thus a need for a surfactant or a detergent is reduced.
  • the fibrous wrinkled protrusions formed on one surface of the nonwoven fabric according to the present invention are brought into soft and close contact with the skin and the skin wrinkles upon use, thus exhibiting very good cleaning capacity and a touch softer than the protrusions of a fiber towel.
  • the punching means includes the pin punch roll and the pocket roll in the present invention
  • the same fibrous wrinkled protrusions may also be formed using a pin punch plate and a pocket plate.
  • one surface of the nonwoven fabric has fibrous wrinkled protrusions and the other surface thereof has perforations.
  • the perforation rate of the nonwoven fabric should be about 5% or more so that the fibrous wrinkled protrusions are efficiently formed on the surface opposite the surface having the perforations.
  • the perforation rate of the nonwoven fabric is proportional to the area of the fibrous wrinkled protrusions of the nonwoven fabric and the area of the punching pin body.
  • the perforation rate of the nonwoven fabric is calculated as a ratio of the area of the punching pin body relative to the area of the punching roll.
  • the surface of the nonwoven fabric opposite the surface having fibrous wrinkled protrusions has recesses structured by the perforations caused by the punching and manifests enhanced cleaning capacity.
  • the fiber density of the portion of the nonwoven fabric which is not subjected to pin punching is also reduced.
  • the fiber density of the portion of the nonwoven fabric not subjected to pin punching is reduced.
  • the nonwoven fabric having protrusions has increased cushioning capacity and higher water- absorbing and cleaning capacity compared to before undergoing the punching process.
  • the preferred pin punching speed is 30 m/min or less.
  • the nonwoven towel having fibrous wrinkled protrusions is manufactured through punching using the pin punch roll, and then pressed with an uneven embossing pattern using an ultrasonic sealer.
  • the ultrasonic sealer is composed of an ultrasonic generator and an embossing roll having a variety of patterns. Some ways of forming the embossing pattern on the nonwoven towel having protrusions according to the present invention are described below.
  • the single-layered nonwoven towel having protrusions is imparted with the embossing pattern using an ultrasonic sealer, thus manufacturing a desired nonwoven towel.
  • two nonwoven towels having protrusions are stacked one on another so that the fibrous wrinkled protrusions thereof are disposed outwards, after which the stacked towels are pressed with the embossing pattern using an ultrasonic sealer and simultaneously the embossing pattern is formed on the surface of the nonwoven fabric having the fibrous wrinkled protrusions, thus manufacturing a double-sided nonwoven towel having protrusions and an uneven pattern.
  • two nonwoven towels having protrusions are respectively placed on both surfaces of a layer of absorbent nonwoven fabric or paper tissue so that the fibrous wrinkled protrusions thereof are disposed outwards, after which the three-layered composite is pressed with the embossing pattern using an ultrasonic sealer and simultaneously the embossing pattern is formed on the surface of the nonwoven fabric having the fibrous wrinkled protrusions, thus manufacturing a desired nonwoven towel having protrusions and an uneven pattern.
  • the surface of the two- or three- layered nonwoven towel having protrusions may include the surface having perforations, if necessary.
  • the nonwoven towel having protrusions and an uneven pattern includes a portion which is not pressed with the embossing pattern to thus have a thickness of the nonwoven towel and a portion which is pressed or laminated with the pattern to thus form a pressed pattern. These two portions constitute the unevenness which causes the difference in thickness of the nonwoven towel having protrusions thus enhancing scraping ability and frictional force of the nonwoven towel, resulting in increased cleaning capacity.
  • the thickness of the PP spunbond nonwoven fabric having a basis weight of 40 g/ is about 300.
  • the embossing pattern of the ultrasonic embossing roll is provided in the form of a diamond line
  • the thickness of the pressed portion in the diamond line is different from the thickness of the nonwoven towel having no deformation, thus forming unevenness.
  • the embossing pattern may have a variety of shapes using lines or dots, or may include letters.
  • the fibers of the nonwoven fabric are bonded along the embossing line, thus remarkably reducing the lint of the nonwoven fabric generated by friction upon use of the nonwoven towel having protrusions according to the present invention.
  • the generation of too much lint upon use of the nonwoven towel having protrusions adversely affects the quality of nonwoven products.
  • the cleaning capacity of nonwoven fabric is superior when there is no lint in the nonwoven fabric.
  • the lint of the nonwoven fabric is described as being increased by the fibrous wrinkled protrusions, the fluffing of the nonwoven fabric due to the total reduction in fiber density, and the recesses structured by the perforations caused by the punching, it may be adjusted through embossing treatment.
  • the heated embossing roll may be used in the present invention.
  • At least one layer of the nonwoven fabric having protrusions is fed between the heated embossing roll and the confronting roll, and then heat pressed along the embossing line, thus imparting the nonwoven fabric having protrusions with the uneven pattern.
  • the cleaning capacity of the nonwoven towel having protrusions according to the present invention is enhanced by the fibrous wrinkled protrusions, the fluffing of the entirety of the nonwoven fabric, the recesses structured by the perforations caused by the punching, the unevenness due to the embossing line, and the increase in water- absorbing capacity resulting from corona treatment.
  • the fibrous wrinkled protrusions of the nonwoven fabric having a reduced fiber density are provided in the bundle of loops of elastic fibers protruding from the nonwoven fabric sheet.
  • the fibrous wrinkled protrusions provided in the bundle of loops of elastic fibers function to increase the contact area between the elastic fiber strands and the skin wrinkles and enhance the adhesion and the scraping ability between it and the skin.
  • Such fibrous wrinkled protrusions are responsible for separating impurities from the skin, thus increasing cleaning efficiency.
  • the surface of the nonwoven fabric opposite the surface having the fibrous wrinkled protrusions has perforations formed through the punching process. Thanks to the recesses structured by such perforations, the surface of the nonwoven fabric opposite the surface having the fibrous wrinkled protrusions may exhibit increased water- absorbing and cleaning capacity as compared to before punching the nonwoven fabric.
  • the nonwoven towels having such cleaning capacity are useful as disposable sponges, electrostatic dustcloths, makeup removers, handkerchiefs and so on.
  • the nonwoven towel having protrusions exhibits superior dishwashing effects and is effective for removing Kimchi stains from a plastic kitchen board or plastic storage containers.
  • the nonwoven towel having protrusions manifests good surface cleaning without causing damage to the coating surface of the frying pan.
  • the nonwoven towel having protrusions is inexpensive and thus may be discarded after a single use, thus achieving sanitary effects. Further, because the nonwoven towel having protrusions is separatable recyclable waste, causing environmental pollution is avoided and the use of detergent may be reduced.
  • the nonwoven towel having protrusions according to the present invention is used as an electrostatic dustcloth, a lot of dust is caught in the fibrous wrinkled protrusions having a low density, thus easily removing dust and preventing th e release of trapped dust. Thereby, the nonwoven towel having protrusions may be conveniently used as an electrostatic dustcloth.
  • the nonwoven fabric subjected to hydrophilic treatment Upon use as a dustcloth, the nonwoven fabric subjected to hydrophilic treatment generates a small amount of static electricity, and thus the use of the hydrophobic nonwoven fabric not subjected to hydrophilic treatment is preferable.
  • the dustcloth made of the hydrophobic nonwoven towel having protrusions according to the present invention generates much more static electricity than presently commercially available dustcloths made of spunlace nonwoven fabric, and thus upon cleaning of hairs, the use of the dustcloth made of the hydrophobic nonwoven towel having protrusions according to the present invention is more effective.
  • the electrostatic dustcloth according to the present invention includes a dustcloth used for wiping a sink, a washstand, pieces of furniture and so on. Upon cleaning of the sink, dirt stains are easily removed, and upon cleaning of furniture, dirt stains are easily removed and there is no damage caused to the surface of the furniture.
  • the makeup is removed from the skin mainly by the fibrous wrinkled protrusions of the nonwoven fabric, and further, upon facial cleansing after removal of the makeup, the makeup residue may be completely removed.
  • the patient s body may feel as clean as when it is bathed.
  • the nonwoven towel having protrusions according to the present invention is cut to the size of a disposable wet towel or tissue, wet with water, and then packaged, and thus used as a disposable wet towel or tissue.
  • the nonwoven towel having protrusions according to the present invention may be provided in the form of a towel roll having perforated tear lines so that it may be torn in a predetermined size, like a roll of toilet paper. In this case, a consumer may directly wet the towel with water and then may use it as a wet towel.
  • the non woven towel having protrusions is cut to a predetermined size and thus may be used as a disposable makeup remover, a facial cleansing wet towel used after removal of the makeup, a dishwashing sponge, a handkerchief, and an electrostatic dustcloth, or may be provided in the form of a towel roll having perforated tear lines to tear it to a predetermined size, like a roll of toilet paper.
  • the bundle of fibers of the nonwoven fabric protrude in the form of protrusions of the towel on the surface of the nonwoven fabric opposite the surface having perforations, and the pin punched surface has recesses structured by the perforations caused by the punching.
  • the fiber density of the entirety of the nonwoven fabric is reduced, thus improving cleaning and water-absorbing capacity.
  • the lint of the nonwoven fabric is reduced.
  • the water- absorbing capacity may be enhanced through corona treatment.
  • the nonwoven products having protrusions according to the present invention are not yet used as disposable wet towels, disposable wet tissues, handkerchiefs, makeup removers, dishwashing sponges, dustcloths and so on, and thus the nonwoven towel having protrusions according to the present invention is of a novel type imparting expedience to daily life.
  • the nonwoven towel having protrusions according to the present invention is environmentally friendly thanks to the reduction of the use of hydrophilic agent and detergent.
  • spunlace nonwoven fabric having an average thickness of 200 was prepared, and then sandwiched between the two nonwoven towels of Example 1 in which the fibrous wrinkled protrusions thereof were disposed outwards.
  • the three- layered nonwoven composite was pressed using an ultrasonic sealer.
  • the embossing press of the embossing roll of the ultrasonic sealer had a diamond line shape having one side 7 mm long and a line thickness of 0.5 mm.
  • PP spunbond nonwoven fabric having a basis weight of 40 g/ and subjected to hy- drophilic treatment was punched as in Example 1 using a punching machine of a pin punch roll set.
  • the nonwoven fabric having absorbent fibrous wrinkled protrusions on one surface thereof was passed through an ultrasonic sealer, and thus a pressed portion by the uneven embossing pattern of the embossing roll of the ultrasonic sealer was formed in the surface of the nonwoven fabric having the fibrous wrinkled protrusions.
  • the pressed portion by the embossing roll had a diamond line shape having one side 7 mm long and a line thickness of 0.5 mm.
  • Example 1 with the exception that the basis weight of the nonwoven fabric was 25 g/.
  • the portion pressed by the embossing pattern of the embossing roll of the ultrasonic sealer was formed in the nonwoven fabric of Example 1 subjected to corona treatment.
  • the portion pressed by the embossing roll had a diamond line shape having one side 7 mm long and a line thickness of 0.5 mm.
  • the nonwoven towels I, II, III,... were wet with water and used as a wet facial cleansing wipe and a general wet tissue.
  • the two- or three-layered nonwoven towel having protrusions was more suitable for use as a facial cleansing wet towel.
  • the three-layered nonwoven towel having protrusions gave the user a feeling like that of a woven wet towel.
  • Example 8 As an absorbent layer, paper tissue having a basis weight of 20 g/ was prepared, and then sandwiched between two nonwoven towels having protrusions as shown in FIG. 6 so that the fibrous wrinkled protrusions of the absorbent nonwoven fabric of Example
  • 40 g/ before punching in Examples 1 and 3 was about 300. After punching, the average thickness of the PP spunbond nonwoven fabric having a basis weight of 40 g/ was about 600. [160] The average thickness of the three-layered nonwoven composite of Example 2 was about 1600, and was considerably increased compared to about 800 which was the thickness before punching.
  • a thickness gauge As a thickness gauge, a digital thickness gauge available from Mitutoyo was used. The thickness was measured in a state in which the punched protrusions were slightly pressed.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

L'invention concerne une serviette non-tissée comportant des éléments saillants et présentant une meilleure capacité de nettoyage et d'absorption d'eau, et étant appropriée pour être utilisée comme serviette humide, tissu humide, mouchoir, produit de démaquillage, éponge à faire la vaisselle ou chiffon à poussière électrostatique. Le tissu non-tissé absorbant constitué de fibres et ayant un denier compris entre 0,1 et 10 est perforé à la presse par des broches chauffées de sorte que le tissu non tissé ait, sur une surface, des parties saillantes fibreuses plissées hautes de 0,1 à 5 mm de façon à réduire ainsi sa densité de fibres et à former des évidements structurés par des perforations provoquées par le perçage dans son autre surface, la vitesse de perforation étant comprise entre 5 et 50 %. La partie non perforée du tissu non tissé est hérissée, ce qui réduit la densité de fibres. Cette serviette non-tissée est utilisée de manière que deux de ses couches soient comprimées par gaufrage de façon à agencer les parties saillantes vers l'extérieur, ou bien le tissu non-tissé absorbant ou le tissu en papier est pris en sandwich entre deux de ses couches et le composite à trois couches est alors comprimé par gaufrage. Cela confère à la serviette non tissée une meilleure capacité d'absorption par traitement Corona et une réduction de la charpie par le traitement par gaufrage, le gaufrage étant irrégulier.
PCT/KR2008/007525 2007-12-24 2008-12-18 Serviette à feuilles non tissées saillantes pour améliorer le nettoyage et renforcer la capacité d'absorption d'eau WO2009082128A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/810,308 US20100269283A1 (en) 2007-12-24 2008-12-18 Protruded non-woven sheet towel for improving of cleaning and water absorbing capability

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20070136069 2007-12-24
KR10-2007-0136069 2007-12-24
KR10-2008-0123281 2008-12-05
KR1020080123281A KR101240369B1 (ko) 2007-12-24 2008-12-05 세척력이 보강된 함수성 부직포 융모 타월

Publications (1)

Publication Number Publication Date
WO2009082128A1 true WO2009082128A1 (fr) 2009-07-02

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0472992A1 (fr) * 1990-08-10 1992-03-04 Kimberly-Clark Corporation Chiffon non-tissé et procédé pour sa réalisation
KR940000647A (ko) * 1992-06-02 1994-01-03 브라이언 제이. 하웨즈 천공된 마모성 흡수 복합 부직 웹
US20030119404A1 (en) * 2001-12-21 2003-06-26 Belau Tom R. Pattern unbonded nonwoven web and process for making same
KR20050044669A (ko) * 2001-12-03 2005-05-12 트레데가르 필름 프로덕츠 코포레이션 천공된 부직포 복합물 및 이의 제조방법
KR100709966B1 (ko) * 2004-07-24 2007-04-25 주식회사 한진피앤씨 부직포 루프시트 및 그 제조방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0472992A1 (fr) * 1990-08-10 1992-03-04 Kimberly-Clark Corporation Chiffon non-tissé et procédé pour sa réalisation
KR940000647A (ko) * 1992-06-02 1994-01-03 브라이언 제이. 하웨즈 천공된 마모성 흡수 복합 부직 웹
KR20050044669A (ko) * 2001-12-03 2005-05-12 트레데가르 필름 프로덕츠 코포레이션 천공된 부직포 복합물 및 이의 제조방법
US20030119404A1 (en) * 2001-12-21 2003-06-26 Belau Tom R. Pattern unbonded nonwoven web and process for making same
KR100709966B1 (ko) * 2004-07-24 2007-04-25 주식회사 한진피앤씨 부직포 루프시트 및 그 제조방법

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