WO2018079823A1 - Feuille humide pour le nettoyage et procédé de fabrication de feuille humide pour le nettoyage - Google Patents

Feuille humide pour le nettoyage et procédé de fabrication de feuille humide pour le nettoyage Download PDF

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Publication number
WO2018079823A1
WO2018079823A1 PCT/JP2017/039300 JP2017039300W WO2018079823A1 WO 2018079823 A1 WO2018079823 A1 WO 2018079823A1 JP 2017039300 W JP2017039300 W JP 2017039300W WO 2018079823 A1 WO2018079823 A1 WO 2018079823A1
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Prior art keywords
cleaning
wet sheet
entangled
resistance value
layer
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PCT/JP2017/039300
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English (en)
Japanese (ja)
Inventor
尚己 新谷
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大王製紙株式会社
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Priority to JP2018521692A priority Critical patent/JP6400253B2/ja
Publication of WO2018079823A1 publication Critical patent/WO2018079823A1/fr

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    • 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
    • A47L13/17—Cloths; Pads; Sponges containing cleaning agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary

Definitions

  • the present invention relates to a cleaning wet sheet and a method for manufacturing a cleaning wet sheet.
  • a wet sheet for cleaning in which a sheet material is impregnated with a chemical is known.
  • Some of these wet sheets for cleaning are formed of a plurality of layers.
  • the inner layer is provided with hydrophilic fibers such as rayon
  • the outer layer is provided with hydrophobic fibers such as polypropylene
  • the inner layer hydrophilic fibers are treated with a chemical solution.
  • An object of the present invention is to provide a cleaning wet sheet and a cleaning wet sheet manufacturing method capable of suppressing excessive release of the chemical even when a low viscosity chemical is used.
  • the invention described in claim 1 is a cleaning wet sheet composed of a plurality of layers and impregnated with a chemical solution, and a hydrophobic fiber layer provided on each of the front surface and the back surface, and these A hydrophilic fiber layer provided in an intermediate layer sandwiched between the hydrophobic fiber layers, an entangled portion where the hydrophobic fiber layer and the hydrophilic fiber layer are entangled, the hydrophobic fiber layer and the hydrophilic fiber A non-entangled portion that is not entangled with the layer, the hydrophilic fiber layer is impregnated with a chemical solution, the basis weight of the hydrophilic fiber layer is 10-50 g / m 2 , and the cleaning
  • the wet friction sheet has a mass of 10-60%, and the static friction resistance value in the wiping direction on the cleaning surface of the cleaning wet sheet is smaller than the dynamic friction resistance value measured according to the horizontal method of JIS-P8147. It is characterized by.
  • the hydrophilic fiber layer has a basis weight of 10-50 g / m 2 , so that the chemical solution is suitably held by the hydrophilic fiber layer and is used for cleaning.
  • JIS -The static frictional resistance value in the wiping direction on the cleaning surface of the cleaning wet sheet, measured according to the horizontal method of P8127 can be made smaller than the dynamic frictional resistance value. Accordingly, even when a low-viscosity chemical solution is used, it is not necessary to apply a large load to the initial movement when wiping with a cleaning wet sheet, and excessive release of the chemical solution can be suppressed.
  • the entangled portion is formed with an area ratio of 23 to 80% with respect to a surface area in a plan view of the front surface or the rear surface. It is characterized by that.
  • the entangled portion is formed with an area ratio of 23-80% with respect to the surface area in plan view. Therefore, the frictional resistance value of the cleaning wet sheet can be set to a better value. For this reason, it can wipe with more moderate load and can discharge
  • the entangled portion extends in a direction substantially perpendicular to the wiping direction of the cleaning wet sheet.
  • the third aspect of the invention it is of course possible to obtain the same effect as that of the first or second aspect of the invention, and in particular, since the entangled portion extends perpendicularly to the wiping direction. Further, the surface of the cleaning wet sheet that is spaced from the surface to be cleaned can be formed so as to extend perpendicularly to the wiping direction, and excessive release of the chemical solution can be suppressed.
  • the entangled portions and the non-entangled portions are alternately and continuously formed along the wiping direction.
  • the entangled part and the non-entangled part are alternately continuously arranged along the wiping direction. Since it forms, a several entangled part and a non-entangled part can be made to contact a to-be-cleaned surface alternately continuously, and the excessive discharge
  • medical solution can be suppressed more favorably.
  • the invention according to claim 5 is the wet sheet for cleaning according to any one of claims 1 to 4, wherein the static friction resistance value in the wiping direction on the cleaning surface of the wet sheet for cleaning is 500 cN or less, and The frictional resistance ratio between the dynamic frictional resistance value and the static frictional resistance value (static frictional resistance value / dynamic frictional resistance value) is 0.7 or less.
  • the fifth aspect of the present invention it is of course possible to obtain the same effect as that of any one of the first to fourth aspects of the present invention, particularly in the wiping direction on the cleaning surface of the cleaning wet sheet. Since the frictional resistance ratio (static frictional resistance value / dynamic frictional resistance value) is 0.7 or less, the load applied to the cleaning wet sheet at the start of sliding at the start of wiping can be reduced. For this reason, the chemical solution is not excessively discharged to the surface to be cleaned, and there is no fear that the chemical solution is insufficient and cannot be sufficiently cleaned.
  • the invention according to claim 6 is the wet sheet for cleaning according to any one of claims 1 to 5, wherein the hydrophobic fiber layer contains hydrophobic fibers in a weight ratio of 50 to 100%. It is characterized by being.
  • the weight of the hydrophobic fiber layer is 50-100%. Since the hydrophobic fibers are contained in a ratio, it is possible to suitably realize the holding of the chemical solution impregnated in the hydrophilic fiber layer and the adjustment of the discharge amount.
  • the invention according to claim 7 is the wet sheet for cleaning according to any one of claims 1 to 6, wherein the hydrophobic fiber layer has a blending ratio of polyethylene terephthalate fibers of 80% or more, and the polyethylene terephthalate The fiber diameter is 3.3 dtex or more.
  • the fibers of polyethylene terephthalate fibers constituting the hydrophobic fiber layer Since the diameter is 3.3 dtex or more, the rigidity (cushioning property) of the fiber is improved, and it can be operated even with a light force. Further, the polyethylene terephthalate fiber having a thick fiber diameter of 3.3 dtex or more secures a gap between fibers, hardly causes a capillary phenomenon, and can prevent the chemical solution from flowing from the inner layer to the outer layer.
  • Invention of Claim 8 is a manufacturing method of the wet sheet for cleaning which manufactures the wet sheet for cleaning as described in any one of Claims 1-7, Comprising: Forming the said entanglement part by hydroentanglement Features.
  • the entangled portion is entangled by hydroentanglement
  • the hydrophilic fiber layer and the hydrophobic fiber layer can be entangled without using an adhesive or the like, and the structure is simplified.
  • the cleaning wet sheet and the manufacturing method of the cleaning wet sheet can suppress the excessive release of the chemical liquid even when using the low viscosity chemical liquid, and can increase the area that can be wiped while discharging the chemical liquid. .
  • a cleaning wet sheet according to an embodiment of the present invention will be described with reference to FIGS.
  • the cleaning wet sheet 1 includes an inner layer 2 as a hydrophilic fiber layer and an outer layer 3 as a hydrophobic fiber layer.
  • the inner layer 2 is an intermediate layer sandwiched between outer layers 3 described later, and is mainly formed of hydrophilic fibers, and the hydrophilic fibers are impregnated with a chemical solution.
  • the inner layer 2 is formed so as to have a basis weight of 10-50 g / m 2 and occupies a weight ratio of 10-60% with respect to the total weight with the outer layer 3 described later.
  • the basis weight is 10-50 g / m 2 and the mass is 10-60% of the total amount of the wet sheet for cleaning.
  • the hydrophilic fiber natural fibers such as pulp, cotton and hemp, and cellulosic chemical fibers such as rayon and acetate are applied, but it is preferable to apply pulp from the viewpoint of maintaining water retention. .
  • the hydrophobic fiber may contain suitably.
  • the chemical solution is used as a cleaning detergent for the cleaning wet sheet 1 and is released from the front surface or the back surface through the outer layer 3 described later.
  • the chemical solution is prepared so that the viscosity is 1-15 mPa ⁇ s at 25 ° C.
  • the viscosity is measured using a Brookfield (B type) rotational viscometer (model number: LVDV-I +), and the rotor used and the number of rotations are appropriately changed according to the viscosity of the aqueous detergent.
  • the measurement conditions are 25 ° C., the rotation speed is 60 rpm, and the method is carried out according to JIS K 7117-1: 1999.
  • medical solution what dissolved lower alcohol, such as ethanol, surfactant and disinfectants, such as benzalkonium chloride, and propylene glycol monomethyl ether (PGME) is mentioned as an example.
  • the outer layer 3 is a layer that forms the surface layer and the back surface layer of the cleaning wet sheet 1, and is mainly formed of hydrophobic fibers. Specifically, the hydrophobic fibers are contained in a weight ratio of 50-100% with respect to the total weight of the outer layer 3.
  • a chemical fiber mainly composed of polyethylene terephthalate, polypropylene, polyethylene or the like is applied as the hydrophobic fiber.
  • the blending ratio of the polyethylene terephthalate fiber is preferably 80% or more, and the fiber diameter is preferably 3.3 dtex or more. By setting the fiber diameter to 3.3 dtex or more, the rigidity (cushioning property) of the fiber is improved and the operation can be performed with a light force.
  • the polyethylene terephthalate fiber having a thick fiber diameter of 3.3 dtex or more secures an inter-fiber gap, prevents a capillary phenomenon from occurring, and prevents the chemical solution from flowing from the inner layer 2 to the outer layer 3.
  • the outer layer 3 includes an entangled portion 31 and a non-entangled portion 32.
  • the entangled portion 31 is a place where the inner layer 2 and the outer layer 3 are integrated by tangling the respective fibers.
  • a method of entanglement of the entanglement part 31 for example, water entanglement is adopted.
  • the inner layer 2 and the outer layer 3 are integrated by applying pre-entanglement with water at a weak water pressure of less than 20 kPa over the entire surface, and then the water flows at a location where the entangled portion 31 is formed at a water pressure of 60-80 kPa.
  • the water entanglement is performed by applying water from both sides to the same portion of the front surface layer and the back surface layer of the cleaning wet sheet 1.
  • the entangled portion 31 is formed in such a manner that the uneven patterning is performed in the same place in the front surface layer and the back surface layer. Since the interlaced portion 31 is subjected to hydroentanglement, the fibers of the inner layer 2 and the outer layer 3 are intertwined, and the fiber density is higher than the non-entangled portion 32 described later. For this reason, the hydrophobic fiber forming the entangled portion 31 does not have a spatial degree of freedom as compared with the non-entangled portion 32, and each fiber is compared with the non-entangled portion 32 during the wiping operation. It is designed not to move freely.
  • the entangled portion 31 has a concave shape with respect to the non-entangled portion 32 because the fiber density is higher than that of the non-entangled portion 32.
  • the entangled portion 31 includes a bottom portion 311 that is the bottom of the recess, and an inclined portion 312 that is an inclined surface that connects the non-entangled portion 32 and the bottom portion 311 described later.
  • the entangled portion 31 extends along a direction (MD direction) perpendicular to the direction of the wiping direction (CD direction) on the cleaning surface of the cleaning wet sheet.
  • the wiping direction on the cleaning surface of the cleaning wet sheet is a direction perpendicular to the longitudinal direction of the jig body when the cleaning wet sheet is mounted on a predetermined jig, and is in the moving direction during cleaning. It is the direction along.
  • the entangled portions 31 are formed in a plurality of rows separated by a predetermined interval. These entangled portions 31 are formed so as to have an area ratio of 23 to 80% in a plan view with respect to the area of the front or back surface of the cleaning wet sheet 1.
  • the non-entangled portion 32 is a place where the inner layer 2 and the outer layer 3 are subjected only to pre-entanglement and are not subjected to hydroentanglement.
  • the non-entangled portion 32 is not subjected to hydroentanglement, so the fiber density is lower than that of the entangled portion 31, and the fibers in this place are compared with the fibers of the entangled portion 31 during the wiping operation. It can move freely.
  • the entangled portions 31 and the non-entangled portions 32 are alternately provided along the wiping direction, and only the non-entangled portion 32 is initially in contact with the surface to be cleaned. Note that the pre-entanglement is not included in the hydroentanglement process.
  • the non-entangled part 32 to which only pre-entanglement is applied is treated as a part that is not entangled for convenience, although it is slightly fiber-entangled by pre-entanglement.
  • the cleaning wet sheet 1 is measured according to the horizontal method (described later) of JIS-P8147, compared with the case where the entangled portion 31 is not provided, and the static friction resistance value and the dynamic friction of the cleaning surface of the cleaning wet sheet are measured. The resistance value is reduced.
  • the static friction resistance value is smaller than the dynamic friction resistance value. That is, the entangled portion 31 has a shape in which the fiber density is higher than that of the non-entangled portion 32 and is recessed with respect to the non-entangled portion 32. Therefore, at the initial stage of wiping the surface to be cleaned, The contact area of the cleaning wet sheet to the surface is reduced.
  • the inner layer 2 is composed of hydrophilic fibers, the chemical solution can be suitably held.
  • the frictional resistance value when wiping the surface to be cleaned with the cleaning wet sheet 1 is small, a light wiping comfort can be obtained, and further, the static frictional resistance value in the wiping direction of the cleaning wet sheet 1 Is less than 500 cN and the static friction resistance value is smaller than the dynamic friction resistance value (specifically, the friction resistance ratio ((static friction resistance value / dynamic friction resistance value) is 0.7 or less).
  • the friction resistance ratio ((static friction resistance value / dynamic friction resistance value) is 0.7 or less).
  • the load at the beginning of wiping is small.
  • a frictional resistance value differs in MD direction and CD direction of the wet sheet
  • the hydrophilic fiber layer 2 has a basis weight of 10-50 g / m 2 and a mass of 10-60% of the total amount of the cleaning wet sheet 1.
  • the chemical solution is suitably held by the hydrophilic fiber layer, and is formed by the entangled portion 31 and the non-entangled portion 32, the separation surface and the contact surface of the cleaning wet sheet, and the hydrophilic fiber layer 2.
  • the static friction resistance value in the wiping direction on the cleaning surface of the cleaning wet sheet 1 can be made smaller than the dynamic friction resistance value due to the retention effect of the chemical solution by the hydrophilic fiber. Accordingly, even when a low-viscosity chemical solution is used, it is not necessary to apply a large load to the initial movement when wiping with a cleaning wet sheet, and excessive release of the chemical solution can be suppressed.
  • the entangled portion 31 is formed with an area ratio of 23-80% with respect to the surface area in plan view of the front and back surfaces, so that the friction in the wiping direction on the cleaning surface of the cleaning wet sheet 1 is achieved.
  • the resistance value can be set to a better value. That is, when the entangled portion 31 is less than 20% with respect to the surface area in plan view of the front and back surfaces, the contact surface at the time of initial movement increases and the static frictional resistance value increases. On the other hand, if it exceeds 50%, the ratio of the entangled portion 31 having a high fiber density contacting the cleaning surface at the time of cleaning increases, so that the dynamic friction resistance value increases. For this reason, by setting the area ratio of the entangled portion 31 within the above range, it can be wiped with an appropriate load, and the chemical solution can be released appropriately.
  • the entanglement part 31 is extended perpendicularly to the wiping direction, the contact surface to the surface to be cleaned and the separation surface of the cleaning wet sheet 1 are alternately cleaned. And excessive release of the chemical solution can be suppressed.
  • the entangled part 31 and the non-entangled part 32 are formed alternately and continuously along the wiping direction, the plurality of entangled parts 31 and the non-entangled part 32 are alternately continued. Can be brought into contact with the surface to be cleaned, and excessive release of the chemical solution can be more effectively suppressed.
  • the frictional resistance ratio (static frictional resistance value / dynamic frictional resistance value) in the wiping direction on the cleaning surface of the cleaning wet sheet 1 is 0.7 or less, sliding starts at the start of wiping. Sometimes, the load applied to the cleaning wet sheet 1 can be reduced. For this reason, the chemical solution is not excessively discharged to the surface to be cleaned, and there is no fear that the chemical solution is insufficient and cannot be sufficiently cleaned.
  • the hydrophobic fiber is contained in the hydrophobic fiber layer 3 in a weight ratio of 50-100%, the retention and release amount of the chemical solution impregnated in the hydrophilic fiber layer 2 is adjusted. Can be suitably realized.
  • the entanglement part 31 is entangled by hydroentanglement, the hydrophilic fiber layer 2 and the hydrophobic fiber layer 3 can be entangled without using an adhesive, etc. In addition, it is possible to avoid uneven wiping and the like due to the adhesive blocking the discharge surface of the chemical solution.
  • the fiber diameter of the polyethylene terephthalate fiber which comprises a hydrophobic fiber layer is 3.3 dtex or more, the rigidity (cushion property) of a fiber improves and it can operate with a light force. Further, the polyethylene terephthalate fiber having a thick fiber diameter of 3.3 dtex or more secures a gap between fibers, hardly causes a capillary phenomenon, and can prevent the chemical solution from flowing from the inner layer to the outer layer.
  • the cleaning wet sheet 1 may have both the front surface and the back surface as cleaning surfaces, or only one surface as a cleaning surface.
  • the CD direction is the wiping direction
  • the MD direction may be the wiping direction.
  • Example 1 In Example 1, the following was used as the cleaning wet sheet 1.
  • a non-woven fabric mainly composed of polyethylene terephthalate was used as the hydrophobic fiber, and a fiber mainly composed of a pulp raw material was used as the hydrophilic fiber.
  • the hydrophobic fiber a chemical fiber mainly composed of polyethylene terephthalate, polypropylene, polyethylene, or the like is used.
  • the outer layer (hydrophobic fiber layer) 3 is composed of 100% hydrophobic fiber, 90% polyethylene terephthalate is contained as the hydrophobic fiber, and core and sheath fibers of polypropylene and polyethylene are used as the binder fiber. Contains 10%.
  • polyethylene terephthalate fibers having a fineness of 3.3 dtex and binder fibers having a fineness of 1.7 dtex were used.
  • water is used as a solvent
  • surfactants anionic surfactants, nonionic surfactants, cationic surfactants and amphoteric surfactants
  • water-soluble solvents monohydric alcohols or polyhydric alcohols
  • 1% pristol as a nonionic surfactant 0.5% lauryl dimethylamine oxide as an amphoteric surfactant, 3.4% ethanol as an alcohol, 1-methoxy-2-propanol 1.
  • the inner layer (hydrophilic fiber layer) 2 is impregnated with a chemical solution so that the impregnation rate is 300%, the basis weight is 30 g / m 2 , and the ratio between the inner layer 2 and the cleaning wet sheet 1 is 45%. Using. Moreover, the stripe type thing which formed the area ratio of the entangled part 31 of the outer layer 3 to 23% was used.
  • Example 2 In Example 2, the inner layer 2 having a basis weight of 10 g / m 2 and a ratio of the inner layer 2 to the cleaning wet sheet 1 of 10% was used. Moreover, the area ratio of the entangled part 31 of the outer layer 3 was formed to 50%. Other configurations are the same as those of the first embodiment.
  • Example 3 In Example 3, the inner layer 2 having a basis weight of 50 g / m 2 and a ratio of the inner layer 2 to the cleaning wet sheet 1 of 60% was used. Moreover, the area ratio of the entangled part 31 of the outer layer 3 was formed to 80%. Other configurations are the same as those of the first embodiment.
  • Comparative Example 1 In Comparative Example 1, the inner layer 2 having a basis weight of 10 g / m 2 and the ratio of the inner layer 2 to the cleaning wet sheet 1 being 9.2% was used. Further, the area ratio of the entangled portion 31 of the outer layer 3 was 0%, that is, a plane type in which the entangled portion 31 was not formed. Other configurations are the same as those of the first embodiment.
  • Comparative Example 2 In Comparative Example 2, the inner layer 2 had a basis weight of 0 g / m 2 and the ratio of the inner layer 2 to the cleaning wet sheet 1 was 0%, that is, the inner layer 2 was not provided. Further, the area ratio of the entangled portion 31 of the outer layer 3 was set to 50%. Other configurations are the same as those of the first embodiment. Comparative Example 3 is an existing cleaning wet sheet, which is a so-called conventional product.
  • Comparative Example 3 In Comparative Example 3, the inner layer 2 having a basis weight of 60 g / m 2 and a ratio of the inner layer 2 to the cleaning wet sheet 1 of 65.7% was used. Further, the area ratio of the entangled portion 31 of the outer layer 3 was set to 15%. Other configurations are the same as those of the first embodiment.
  • Comparative Example 4 In Comparative Example 4, the inner layer 2 having a basis weight of 20 g / m 2 and a ratio of the inner layer 2 to the cleaning wet sheet 1 of 28.6% was used. Further, the area ratio of the entangled portion 31 of the outer layer 3 was set to 85%. Other configurations are the same as those of the first embodiment.
  • the friction resistance value measurement and the wiping frequency test using the cleaning wet sheet 1 of Example 1-3 and Comparative Example 1-4 were performed.
  • the frictional resistance value is measured according to the horizontal method of JIS-P8147: 2010.
  • a sandpaper (# 1200, manufactured by 3M) is attached to the four sides of a 400 g weight with a bottom shape of 10 cm x 10 cm with a double-sided tape, and placed on a cleaning wet sheet 1 with four corners attached to a horizontal table with tape. Then, the resistance value when moved horizontally at a speed of 500 mm / min was measured.
  • AUTOGRAPH AGS-500B manufactured by Shimadzu Corporation was used as a tensile testing machine that pulls the weight in the horizontal direction.
  • the method for testing the number of times of wiping is to install the cleaning wet sheet 1 on the jig for mounting the cleaning wet sheet 1 (quick wiper / made by Kao Co., Ltd. 2015) without sag, and the floor surface formed with an acrylic plate in one direction. Wipe on.
  • the width of the jig is 25 cm and the wiping operation of 90 cm from the end to the end of the acrylic plate floor is measured once along the longitudinal direction of the acrylic plate floor (90 cm long, 130 cm wide). 1.
  • the angle between the floor surface and the mounting jig axis is 60 degrees, and the head axis is fixed with a commercially available bond so that the angle does not fluctuate. 2.
  • a 530 g weight (diameter: 100 mm, length: 200 mm) of a cylindrical cylinder is passed through the shaft of the head, and a sheet is mounted. 3.
  • the measurement uses a commercially available acrylic plate with a width of 1300 mm and a depth of 900 mm on the floor, the jig axis is on the front side so that the angle between the floor surface and the mounting jig axis is 60 degrees, and the front to the back is 300 mm / s. Clean at a speed of. 4). Clean sequentially in the width direction of the acrylic board floor so that it does not overlap with the cleaned surface. 5). Before the next measurement, remove the remaining wet liquid for cleaning with a dry cloth.
  • the state where the chemical liquid is no longer released from the entire width of the cleaning wet sheet 1 is set as the end point, and the number of times of wiping until the end point is reached (the number of effective wiping) is measured. 6).
  • the end point is the time when the portion where the chemical solution is not clearly released to the floor surface is generated as a wiping line, and the state in which the chemical solution is not released due to the halfway is generated in the full width. 7).
  • the number of times judged to be the end point was not included in the number of measurements.
  • said test is implemented 5 times and let the average value of the frequency
  • Table 1 shows the results of the measurement of the frictional resistance value and the results of the wiping frequency test.
  • Example 1-3 and Comparative Example 1-4 are compared, the entangled portion 31 is formed in a range of 23-80%, the basis weight of the inner layer 2 is 10-50 g / m 2 , and It was confirmed that the mass ratio of 10-60% of the total amount of the wet sheet was 100% in both the MD and CD directions (static / dynamic).
  • Example 1-3 the number of wipes was 45 or more, and in Comparative Example 1-4, the number of wipes was 28 or less. From this, it was confirmed that the number of wiping operations increased when the (static / dynamic) friction resistance ratio was less than 100%.
  • the present invention can be used for a cleaning wet sheet and a manufacturing method thereof.

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  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Laminated Bodies (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

L'invention concerne une feuille humide pour le nettoyage (1) comprenant : des couches de fibres hydrophobes (3) disposées respectivement sur une couche de surface avant et une couche de surface arrière; une couche de fibres hydrophiles (2) disposée sur une couche intermédiaire insérée entre les couches de fibres hydrophobes (3); une partie entrelacée (31) dans laquelle les couches de fibres hydrophobes (3) et la couche de fibres hydrophiles (2) sont entrelacées; et une partie non entrelacée (32) dans laquelle les couches de fibres hydrophobes (3) et la couche de fibres hydrophiles (2) ne sont pas entrelacées, la couche de fibres hydrophiles (2) étant imprégnée d'un agent chimique, la couche de fibres hydrophiles (2) ayant un poids de base de 10 à 50 g/m2 et une masse qui est de 10 à 60 % de la masse totale de la feuille humide pour le nettoyage (1) et la valeur de résistance à la friction dynamique dans la direction d'essuyage sur la surface de nettoyage de la feuille humide (1) pour le nettoyage, telle que mesurée selon le procédé de plan horizontal de la norme JIS-P8147, étant supérieure à la valeur de résistance à la friction statique.
PCT/JP2017/039300 2016-10-31 2017-10-31 Feuille humide pour le nettoyage et procédé de fabrication de feuille humide pour le nettoyage WO2018079823A1 (fr)

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JP2004106809A (ja) * 2002-09-20 2004-04-08 Fukashi Uragami 負圧などの吸着手段により表面に吸着する移動台車
JP2004187476A (ja) * 2002-12-06 2004-07-02 Tochigi Fuji Ind Co Ltd 電磁式アクチュエータ及びこれを用いたデファレンシャル装置
JP2006249620A (ja) * 2005-03-11 2006-09-21 Kao Corp 繊維集合体及び清掃具
JP2007154359A (ja) * 2005-12-05 2007-06-21 Kao Corp 嵩高シート
JP2014113409A (ja) * 2012-12-12 2014-06-26 Soft99 Corporation ウェットシート
JP2014129632A (ja) * 2012-12-29 2014-07-10 Uni Charm Corp 清掃部材を製造する方法及び装置
US20140366294A1 (en) * 2013-06-18 2014-12-18 The Procter & Gamble Company Bonded laminate cleaning implement

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