EP0959164A1 - Wiping sheet of raised non-woven fabric and production thereof - Google Patents

Wiping sheet of raised non-woven fabric and production thereof Download PDF

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Publication number
EP0959164A1
EP0959164A1 EP99303831A EP99303831A EP0959164A1 EP 0959164 A1 EP0959164 A1 EP 0959164A1 EP 99303831 A EP99303831 A EP 99303831A EP 99303831 A EP99303831 A EP 99303831A EP 0959164 A1 EP0959164 A1 EP 0959164A1
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EP
European Patent Office
Prior art keywords
sheet
woven fabric
wiping
fibers
spun lace
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP99303831A
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German (de)
English (en)
French (fr)
Inventor
Nehito Research & Development Division Takeuchi
Yoshinori Research & Development Division Tanaka
Daisuke Research & Development Division Yamada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unicharm Corp
Original Assignee
Unicharm Corp
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 Unicharm Corp filed Critical Unicharm Corp
Publication of EP0959164A1 publication Critical patent/EP0959164A1/en
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L13/10—Scrubbing; Scouring; Cleaning; Polishing
    • A47L13/16—Cloths; Pads; Sponges
    • 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
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L13/10—Scrubbing; Scouring; Cleaning; Polishing
    • A47L13/20—Mops
    • 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
    • D04H11/00—Non-woven pile fabrics
    • D04H11/08—Non-woven pile fabrics formed by creation of a pile on at least one surface of a non-woven fabric without addition of pile-forming material, e.g. by needling, by differential shrinking
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C11/00—Teasing, napping or otherwise roughening or raising pile of textile fabrics

Definitions

  • the present invention relates to a wiping sheet of raised, non-woven fabric, a process for producing the same, and the like.
  • Throwaway or disposable wiping sheets of non-woven fabric have been widely used, such as to remove makeup, to clean the perianal of a baby, to clean the floor or toilet, and the like.
  • a soft texture is required when used as a dry or wet tissue, such as for removing makeup or cleaning the perianal region because they come into direct contact with human skin, e.g., the hands.
  • a good wiping effect, a sufficient stiffness and an ability to be used for both dry wiping and wet wiping are required of them if they are to sweep the floor, toilet or the like.
  • Japanese Patent Application No. 245090/1993 discloses a cleaning article of non-woven fabric which has an irregular surface and is impregnated with an oil-based agent.
  • this cleaning article cannot be used for wet wiping because it contains an oil-based agent to attract dust.
  • the present inventors disclosed, in Japanese Patent Application No. 68728/1997, a wiping sheet having a multi-layer structure which can be used for both dry wiping and wet wiping.
  • this wiping sheet is less effective in capturing fine dust particles during dry wiping, although it is somewhat more effective during wet wiping.
  • the wiping sheet of the present invention is produced from a sheet stock of at least one non-woven fabric in such a way that the surface of the sheet stock is raised by partial cutting and loosening of fibers as it undergoes mechanical resistance.
  • the sheet stock can be a single-layer structure or multi-layer structure.
  • it in the former, it can be composed of one piece of spun lace non-woven fabric, while in the latter, it can be composed of two pieces of spun lace non-woven fabrics and one piece of non-woven fabric that is not spun lace interposed between them, with the spun lace non-woven fabrics raised at both sides of the sheet stock.
  • the sheet stock is composed of a single spun lace non-woven fabric
  • at least one fiber has a raised height of 0.4 mm or more, per 1.6 x 10 -5 cm 2 of the sheet surface.
  • the spun lace non-woven fabric contains hydrophobic fibers and at least one fiber selected from absorbent fibers and hydrophilic fibers.
  • the spun lace non-woven fabric is raised at both sides thereof.
  • the sheet stock is a multi-layer structure, it is preferable that at least one fiber has a raised height of 0.4 mm or more per 1.6 x 10 -5 cm 2 of the sheet surface.
  • all of the non-woven fabrics contain hydrophobic fibers and at least one fiber selected from absorbent fibers and hydrophilic fibers.
  • the content of hydrophobic fibers in the spun lace non-woven fabric is greater in an upper layer than in an lower layer, and the content of absorbent fibers and hydrophilic fibers in the spun lace non-woven fabric is greater in the lower layer than in the upper layer.
  • all the non-woven fabrics contain a thermoplastic resin which are fusion-bonded together along bonding lines.
  • the wiping sheet is produced by subjecting a surface of a sheet stock composed of at least one piece of non-woven fabric to mechanical resistance by needles or a bar in such a way that fibers are raised by partial cutting and loosening.
  • Fig.1(A) is an enlarged side sectional view of a portion of sheet stock which is not yet raised.
  • Fig. 1(B) is an enlarged side sectional view of a portion of wiping sheet of the present invention produced by raising the sheet stock shown in Fig. 1(A).
  • Fig. 2(A) is a schematic diagram showing an example of the process for producing the wiping sheet of the present invention.
  • Fig. 2(B) is a schematic diagram of a typical pile roller and a counter pile roller as shown in Fig. 2(A).
  • Fig. 3 is a diagrammatic side elevation of another example of the process for producing the wiping sheet of the present invention.
  • Fig. 4 is an enlarged sectional elevation showing the side by side relationship of a portion of sheet stock which is not yet raised and the wiping sheet of the present invention which was obtained by raising the sheet stock.
  • Fig. 5 is a sectional elevation of the individual layers of sheet stock which form the wiping sheet of the present invention.
  • Fig. 6 is a plan view of the wiping sheet shown in Fig. 5.
  • Fig. 7 is a diagrammatic perspective view of the wiping sheet attached to a cleaning mop.
  • Fig. 8 is a graph showing the results of the test for dry wiping in the Examples.
  • Fig. 9 is a graph showing the results of the test for wet wiping in the Examples.
  • the term "raised height” means that at least one fiber is raised to the specified height or more per 1.6 x 10 -5 cm 2 of the sheet surface.
  • Fig. 1(A) is an enlarged side sectional view of a portion of sheet stock which is not yet raised.
  • Fig. 1(B) is an enlarged side sectional view of the wiping sheet of the present invention produced by raising the sheet stock shown in Fig. 1(A).
  • a sheet stock 1 shown in Fig. 1(A) is composed of a single spun lace non-woven fabric formed from a fiber web, with the fibers interlaced by water jets. It is noted that the sheet stock 1 , which is not yet raised as shown in Fig. 1(A) , has a slightly fluffy surface with its fibers projecting therefrom; however, the degree of projecting (the number and height of the projecting fibers) is very small. According to the present invention, the surface of the sheet stock 1 undergoes mechanical resistance so that fibers are partially cut and loosened. The resulting sheet stock 1 has raised surfaces with an enormous number of projected fibers. (The sheet stock 1 which has undergone mechanical resistance for raising is hereinafter referred to as a raised sheet 2 .) As shown in Fig. 1(B), the raised sheet 2 is much thicker and bulkier than the sheet stock 1 .
  • the spun lace non-woven fabric is illustrated as the sheet stock 1 which is to be raised.
  • the sheet stock 1 may be composed of any other non-woven fabric, e.g., spun bond non-woven fabric, melt-blown non-woven fabric, needle punch non-woven fabric, stitch bond non-woven fabric, dry non-woven fabric and wet non-woven fabric
  • the spun lace non-woven fabric is preferred for use as the sheet stock 1 because it permits the surface fibers to be raised easily when the fabric undergoes mechanical resistance.
  • the sheet stock 1 may be composed of a single non-woven fabric manufactured to have a double-layer structure or may have a multi-layer structure where two or more pieces of non-woven fabrics are laminated. In the case where the sheet stock 1 has the multi-layer structure, it is preferred that outer layers which appear on the surfaces of the sheet stock 1 are spun lace non-woven fabrics for easy raising.
  • the surfaces of the sheet stock 1 undergo mechanical resistance which cuts and loosens fibers properly. This is practically accomplished by scratching the fibers with needles or rubbing the sheet stock 1 against a bar.
  • FIG. 2(A) and 2(B) An example of the methods for producing the raised sheet 2 by using needles is shown in Figs. 2(A) and 2(B).
  • This method is designed to easily carry out raising to any degree desired, by rotating rollers in contact with the surface of the sheet stock 1 , said rollers having a large number of needles thereon.
  • the sheet stock 1 is held between drive rollers 9a and pinch rollers 9b , and travels in the direction of arrow 6 in circulation.
  • Fig. 2(A) the sheet stock 1 is held between drive rollers 9a and pinch rollers 9b , and travels in the direction of arrow 6 in circulation.
  • the counter pile roller 4 and the pile roller 5 have a large number of needles on their surface, as shown in Fig. 2(B). These needles have hooked tips.
  • the needle tips of the counter pile roller 4 project in the direction opposite arrow 7
  • the needle tips of the pile roller 5 project in the same direction as arrow 8 .
  • these rollers turn on the surface of the sheet stock 1 , their needles catch fibers, thereby cutting or loosening the caught fibers, in order to raise the fibers.
  • the degree of raising may be controlled by the difference between a velocity V (at which the sheet stock 1 travels and the drive roller turns at the same peripheral velocity) and a peripheral velocity V CPR (at which the counter pile roller 4 turns), and by the difference between the velocity V and a peripheral velocity V PR (at which the pile roller 5 turns).
  • V at which the sheet stock 1 travels and the drive roller turns at the same peripheral velocity
  • V CPR at which the counter pile roller 4 turns
  • V PR at which the pile roller 5 turns
  • the degree of raising can also be controlled by varying the number and shape of needles on the roller surface.
  • raising can be accomplished efficiently and effectively by using two kinds of rollers (the counter pile rollers 4 and the pile rollers 5 ), raising can also be accomplished by using only one kind of roller. Further, raising can be accomplished by using stationary needles which are fixed along the way where the sheet stock 1 travels, instead of using the rollers having needles thereon.
  • Fig. 3 Another example of the methods for producing the raised sheet 2 is shown in Fig. 3.
  • the sheet stock 1 is fed in the direction of arrow 6 in such a way that it is supported by two rolls 10 and it undergoes resistance by a bar 11.
  • the bar 11 is made of a hard substance such as stainless steel. Due to resistance against the bar 11, the fibers of the sheet stock 1 are cut and loosened to produce the raised sheet 2 .
  • the raised sheet 2 produced from the sheet stock 1 as described above, is used as the wiping sheet of the present invention.
  • the raised fibers 3 formed by mechanical resistance on the surface of the non-woven fabric form large spaces between them. Therefore, the wiping sheet captures fine dust in these spaces.
  • the wiping sheet of the invention is more effective than a conventional wiping sheet formed from a non-woven fabric without raising by mechanical resistance. In other words, the raising of fibers produces marked improvement in the wiping effect during dry wiping, without an oil-based agent impregnated therein.
  • the raised sheet 2 is soft to the touch.
  • Fig. 4 is an enlarged sectional elevation showing the sheet stock 1 and the raised sheet 2 (wiping sheet) side by side for comparison.
  • the sheet stock 1 is composed of a single spun lace non-woven fabric.
  • At least one fiber has a raised height of 0.4 mm per 1.6 x 10 -5 cm 2 of the sheet surface. More preferably, at least one fiber has a raised height of 0.6 mm per 1.6 x 10 -5 cm 2 of the sheet surface. Raising to such an extent is obtained when the surface of an ordinarily produced non-woven fabric undergoes mechanical resistance.
  • the height of a fiber (not the total length of a fiber is measured from the surface of the sheet stock 1 which is not yet raised. Incidentally, as shown in Fig. 4 , individual raised fibers 3 can differ in the raised height.
  • the average raised height is preferably 0.4 mm or more, more preferably 0.6 mm or more.
  • the average raised height is defined by the thickness of the region "h" which has the raised fibers 3 at a sufficient consistency to form a substantially unified raised layer. If the region "h" has no clear upper boundary, it is possible to obtain the average raised height from the difference between the thickness of the sheet stock 1 (not yet raised) and the thickness of the raised sheet 2 (wiping sheet) that has been placed on the floor with raised fibers facing downward and pressed under its own weight.
  • the wiping sheet shown in Fig. 4 which is produced from a single spun lace non-woven fabric, has good wiping properties with respect to capturing fine dust particles, bulkiness and texture (soft to the touch), while it maintains strength. Therefore, it is suitable for use as sheet (in the form of a dry or wet tissue) such as, for example, to remove makeup or to clean the perianal region of an infant.
  • the spun lace non-woven fabric, which is used as the sheet stock 1 contains hydrophobic fibers and at least one type of fiber selected from absorbent fibers and hydrophilic fibers so that the wiping sheet slides easily across the object to be cleaned and can retain sufficient water for wet wiping.
  • the wiping sheet of the present invention can be produced by raising the sheet stock 1 of a multi-layer structure, which is composed of two or more pieces of non-woven fabrics.
  • This multi-layer sheet stock 1 is preferably composed of two pieces of spun lace non-woven fabrics as outer layers, and at least one piece of non-woven fabric other than spun lace non-woven fabric as a middle layer interposed between the outer layers.
  • the middle layer include air-through bond non-woven fabric, spun bond non-woven fabric and point bond non-woven fabric.
  • a wiping sheet of the invention has an adequate stiffness and thickness (for good handling) by using any one or a combination of the through-air bond non-woven fabric (in which fibers are fusion-bonded by hot air) and the spun bond non-woven fabric and the point bond non-woven fabric (in which fibers are partly fusion-bonded). Therefore, the wiping sheet made from the multi-layer sheet stock 1 is suitable for use as a cleaning sheet on hard surfaces, such as for a floor or a toilet.
  • the multi-layer sheet stock 1 can have one piece of spun lace non-woven fabric for raising.
  • At least one fiber has a raised height of 0.4 mm or more per 1.6 x 10 -5 cm 2 of the sheet surface. More preferably, at least one fiber has a raised height of 0.6 mm or more per 1.6 x 10 -5 cm 2 of the sheet surface. Further, the average raised height is also preferably 0.4 mm or more, more preferably 0.6 mm or more.
  • Fig. 5 is a sectional view showing the wiping sheet formed from the multi-layer sheet stock 1, with individual layers separated.
  • Fig. 5 shows the sheet stock 1 having a three-layer structure consisting of two pieces of spun lace non-woven fabrics 12 as outer layers, and one piece of non-woven fabric 13 (such as of air-through bond non-woven fabric, spun bond non-woven fabric or point bond non-woven fabric) as a middle layer interposed between the outer layers.
  • the three-layer sheet stock 1 is raised at the outer layers (of the spun lace non-woven fabrics 12 ) so that the wiping sheet permits cleaning with both surfaces.
  • the spun lace non-woven fabrics 12 constituting the outer layer contain hydrophobic fibers so that the wiping sheet slides easily across a floor (or any surface to be cleaned) at the time of both dry wiping and wet wiping. It is also preferable that the spun lace non-woven fabric 12 contains at least one fiber selected from absorbent fibers and hydrophilic fibers so that the wiping sheet retains an adequate amount of water at the time of wet wiping.
  • the content of hydrophobic fibers in the spun lace non-woven fabric 12 should preferably be 5 wt % or more of the fabric so that absorbed water will not flow out from the non-woven fabric 13 constituting the middle layer.
  • the spun lace non-woven fabric 12 may be formed from two fiber webs (e.g., joined together by applying water jets) to have an upper layer for raising and a lower layer for facing the non-woven fabric 13.
  • the content of hydrophobic fibers in the upper layer (for raising) is greater than the content of hydrophobic fibers in the lower layer (for facing the non-woven fabric 13 ), and the content of absorbent fibers and hydrophilic fibers in the lower layer is greater than in the upper layer, so that the wiping sheet slides easily across a surface and retains an adequate amount of water while preventing the back flow of water.
  • the non-woven fabric 13 as the middle layer preferably contains hydrophobic fibers which impart stiffness to the wiping sheet. It is also preferred that the non-woven fabric 13 contains at least one fiber type selected from absorbent fibers and hydrophilic fibers so that the non-woven fabric 13 retains water when the wiping sheet is used for wet wiping.
  • hydrophobic fibers contained in the spun lace non-woven fabric 12 and the non-woven fabric 13 include polypropylene (PP) fibers, polyethylene (PE) fibers, polyethylene terephthalate (PET) fibers and acrylic fibers. Because these fibers are thermoplastic, the spun lace non-woven fabric 12 and the non-woven fabric 13 can be fusion-bonded to each other. In view of this, more preferably, the non-woven fabric 12 and 13 contain fibers such as of low-melting PET to facilitate fusion-bonding.
  • hydrophilic fibers examples include sweat-absorbing polypropylene (PP) fibers, sweat-absorbing polyethylene (PE) fibers, and sweat-absorbing polyester (PET) fibers, which are, for example, PP, PE, PET fibers coated or incorporated with a hydrophilic surface active agent.
  • PP polypropylene
  • PE polyethylene
  • PET polyester
  • absorbent fibers examples include rayon fibers, cellulose fibers and nylon fibers. However, other fibers can be used so long as they possess similar water retention and absorption properties of those listed.
  • the effect of the hydrophobic synthetic fibers and absorbent fibers and/or the hydrophilic fibers contained in the wiping sheet is that the former prevents the back flow of water while the latter retains water.
  • the wiping sheet can clean a large area while maintaining a wet state without excess water on its surface.
  • the non-woven fabric 13 has a basis weight of 25 to 55 g/m 2 , so that the wiping sheet has an adequate degree of flexibility and stiffness to permit repeated use.
  • Fig. 6 is a top plan view of the wiping sheet shown in Fig. 5.
  • This wiping sheet is composed of two pieces of spun lace non-woven fabrics 12 and one piece of non-woven fabric 13, each containing a thermoplastic resin (thermoplastic fibers as mentioned above), which fabrics are bonded together along bonding lines 14 by heating.
  • thermoplastic resin thermoplastic fibers as mentioned above
  • the spun lace non-woven fabrics 12 overlay the non-woven fabric 13 to form the three-layer structure shown in Fig. 5 .
  • these non-woven fabrics 12 and 13 are pressed between heat embossing rolls having a wavy pattern thereon, or between a heat embossing roll having a wavy pattern thereon and a heat roll having a flat surface.
  • This process melts the thermoplastic resin contained in the non-woven fabrics 12 and 13 , achieving their fusion-bonding along the bonding lines 14.
  • the resulting product is the three-layer sheet stock 1, which subsequently undergoes raising.
  • the bonding lines 14 are not specifically restricted in shape. However, if the bonding lines 14 are formed in a wavy pattern, e.g., herringbone pattern, sawtooth pattern, or the like, they have good wiping properties due to the surface irregularities.
  • the above-mentioned heat-embossing step is not the only way to bond together the non-woven fabrics 12 and 13 .
  • the object may also be achieved by ultrasonic heating, or by coating an adhesive such as a hot-melt adhesive between abutting faces of the non-woven fabrics 12 and 13 followed by pressing with pressure embossing rolls.
  • the multi-layer sheet stock 1 thus produced yields a wiping sheet which has sufficient stiffness in its dry state as well as in its wet state, such as when impregnated with water or chemical solution.
  • This sufficiently stiff wiping sheet does not get twisted or wrinkled easily during its use even though it is not folded.
  • it readily restores to its original shape after it is squeezed as in the case of a cloth duster. Therefore, it can be used repeatedly after washing with water.
  • the bonding of the spun lace non-woven fabrics 12 and the non-woven fabric 13 is accomplished prior to raising the fibers.
  • the order of these steps may be reversed.
  • raising is performed on one side of each spun lace non-woven fabric 12 and then bonding is accomplished, with the non-woven fabric 13 interposed between the raised spun lace non-woven fabrics 12.
  • the wiping sheet of the present invention can be used by holding in hand or by attaching it to a commercial cleaning tool, such as a cleaning mop M as shown in Fig. 7.
  • a commercial cleaning tool such as a cleaning mop M as shown in Fig. 7.
  • the wiping sheet is preferably softened at both side portions to be clamped by holders of the cleaning mop M, so as to reduce the stiffness at the side portions, compared with a central portion between the side portions. This softening can be accomplished by embossing.
  • the resulting wiping sheet maintains a sufficient stiffness as a whole, while it can be readily attached to the cleaning mop M.
  • a large number of openings can be included in the surface of the wiping sheet by using needles or water jets.
  • the openings may be round or oval and can vary in diameter from 1 to 5 mm.
  • a spun lace non-woven fabric was prepared from the following fibers to provide an outer layer of the wiping sheet of the present invention: Rayon fibers 1.5 denier, 38 mm long, 50 wt% Sweat-absorbing PET fibers 1.5 denier, 44 mm long, 35 wt% Low-melting PET fibers 2.0 denier, 51 mm long, 15 wt%
  • An air through bond non-woven fabric was prepared from the following fibers to provide a middle layer between the spun lace non-woven fabrics: Rayon fibers 2.0 denier, 51 mm long, 45 wt% Low-melting PET fibers 2.0 denier, 51 mm long, 40 wt% Hollow PET fibers 2.0 denier, 51 mm long, 15 wt%
  • This step was accomplished by using a needle-type raising machine as schematically shown in Figs. 2(A) and 2(B), which is available from Kanai Juryou Kogyo Co., Ltd.
  • the multi-layer sheet stock was subjected to raising by two pile rollers and two counter pile rollers, as shown in Fig. 2(A).
  • This raising cycle was repeated 5 times, 20 times and 30 times for Example 1, Example 2 and Example 3, respectively.
  • the height after raising (raised height) was 0.4 mm, 0.6 mm and 1.2 mm in Example 1, Example 2 and Example 3, respectively.
  • the wiping sheets of Examples 1-3 were tested for dry wiping and wet wiping as follows.
  • Example 4 the same test for dry wiping, as described above, was performed by using a commercial cleaning sheet for mopping which is a PET non-woven fabric sprayed with 5 wt% oil-based agent (mineral oil) to the weight of the PET non-woven fabric.
  • a commercial cleaning sheet for mopping which is a PET non-woven fabric sprayed with 5 wt% oil-based agent (mineral oil) to the weight of the PET non-woven fabric.
EP99303831A 1998-05-18 1999-05-17 Wiping sheet of raised non-woven fabric and production thereof Withdrawn EP0959164A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP13528598 1998-05-18
JP10135285A JPH11318791A (ja) 1998-05-18 1998-05-18 起毛させた拭き取りシート及びその製造方法並びにこの拭き取りシートを用いた清掃用物品

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EP0959164A1 true EP0959164A1 (en) 1999-11-24

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EP99303831A Withdrawn EP0959164A1 (en) 1998-05-18 1999-05-17 Wiping sheet of raised non-woven fabric and production thereof

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EP (1) EP0959164A1 (ja)
JP (1) JPH11318791A (ja)
KR (1) KR19990088366A (ja)
CN (1) CN1172625C (ja)
CA (1) CA2271457A1 (ja)
ID (1) ID23293A (ja)
SG (1) SG82612A1 (ja)
TW (1) TW438580B (ja)

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ID23293A (id) 2000-04-05
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KR19990088366A (ko) 1999-12-27
CA2271457A1 (en) 1999-11-18
CN1172625C (zh) 2004-10-27

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