WO2019131550A1 - 繊維不織布シート - Google Patents

繊維不織布シート Download PDF

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Publication number
WO2019131550A1
WO2019131550A1 PCT/JP2018/047358 JP2018047358W WO2019131550A1 WO 2019131550 A1 WO2019131550 A1 WO 2019131550A1 JP 2018047358 W JP2018047358 W JP 2018047358W WO 2019131550 A1 WO2019131550 A1 WO 2019131550A1
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WIPO (PCT)
Prior art keywords
fiber
sheet
fibers
symbol
design
Prior art date
Application number
PCT/JP2018/047358
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
明寛 木村
耕 出谷
眞一郎 泉保
Original Assignee
ユニ・チャーム株式会社
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 JP2017254744A external-priority patent/JP7065603B2/ja
Priority claimed from JP2017254745A external-priority patent/JP7138434B2/ja
Priority claimed from JP2017254749A external-priority patent/JP7065606B2/ja
Application filed by ユニ・チャーム株式会社 filed Critical ユニ・チャーム株式会社
Priority to KR1020207009193A priority Critical patent/KR102539621B1/ko
Priority to CN201880073109.4A priority patent/CN111328356B/zh
Priority to CN202210616549.8A priority patent/CN114960031A/zh
Publication of WO2019131550A1 publication Critical patent/WO2019131550A1/ja

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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/492—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
    • D04H1/495—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet for formation of patterns, e.g. drilling or rearrangement

Definitions

  • the present invention relates to a fibrous nonwoven sheet formed by interlacing fibers.
  • Patent Document 1 discloses a fiber non-woven fabric provided with a concavo-convex pattern formed by rearranging a part of fibers by water flow entanglement (high pressure fluid) in a process of producing a fiber web formed by interlacing fibers.
  • a sheet is disclosed.
  • the fiber non-woven sheet disclosed in Patent Document 1 is relatively excellent in flexibility because it is formed by entanglement of fibers as a whole, and is a fiber formed by a fluid jetted from a jet nozzle in a manufacturing process. Compared with a non-woven fiber non-woven sheet, it has a concavo-convex pattern consisting of a plurality of concavo-convex lines alternately extending in the machine direction in which the web is transported and intersecting the machine direction. Excellent in quality.
  • the concavo-convex pattern is a mere continuous pattern extending to the outer peripheral edge of the sheet and can not grasp the outline of the entire pattern. Therefore, it is not recognized to the user as a unique design attached to each sheet, but is recognized as a ground pattern that is a repetition of a simple design attached to a continuous fiber web, and has high designability. I can not impress as something.
  • the concavo-convex pattern is a continuous pattern extending to the outer peripheral edge of the sheet, and the external contour of the entire pattern can not be grasped. Therefore, it is not recognized to the user as a unique design attached to each sheet, but is recognized as a ground pattern that is a repetition of a simple design attached to a continuous fiber web, and has high designability. I can not impress as something. Further, since the concavo-convex pattern is continuously shaped in the machine direction by the fluid jetted from the jet nozzle, the width dimension of the concave line can not be changed.
  • heat embossing may be applied in the manufacturing process to change the width dimension of the line in the extending direction to provide a concavo-convex design having high designability.
  • the fibers are heat-welded and become relatively hard, and the softness and draping property inherent to the fiber non-woven fabric sheet are impaired, the touch becomes worse and the sheet is easily broken.
  • the fiber nonwoven fabric sheet is formed as a whole by fiber entanglement, and thus it is relatively excellent in flexibility, and it is added by the fluid jetted from the jet nozzle in the manufacturing process.
  • An uneven pattern consisting of a plurality of stripe lines (the individual stripe lines extend in the machine direction in which the fiber web is conveyed, and the unevenness is formed by arranging the stripe lines alternately in the direction intersecting the machine direction) By having a pattern, the design is superior to that of a non-patterned non-woven fabric.
  • the concavo-convex pattern is a continuous pattern extending to the outer peripheral edge of the fiber non-woven fabric sheet, and the contour of the pattern can not be grasped. Therefore, for the user, the concavo-convex pattern is not recognized as a unique design attached to each fiber non-woven sheet, but is recognized as a ground pattern that is a repetition of a simple design, and has high designability I can not make an impression.
  • a first invention relates to improvement of a fibrous nonwoven fabric sheet formed by interlacing fibers, which has a thickness direction and opposing first and second surfaces in the thickness direction.
  • the fiber non-woven fabric sheet according to the first aspect of the invention has a figure portion formed of a concave line which is concave toward the second surface in the first surface, and the concave line is formed by fiber entanglement,
  • the said symbol part has an independent and closed outline, The said outline is spaced apart from the outer periphery of the said fiber nonwoven fabric sheet, It is characterized by the above-mentioned.
  • the fiber non-woven sheet according to the first invention includes the following preferred embodiments.
  • It is made of spunlace fiber non-woven fabric, and the concave line is bottomed. In such a case, when wiping dirt such as excrement, dirt that has entered the concave line does not adhere to the hand.
  • the fiber density of the concave line is smaller than the fiber density of the area other than the concave line. In such a case, when the sheet is pulled, the concave line is easily stretched, and the width of the concave line can be expanded.
  • the symbol portion further includes a symbol positioned surrounded by the outline. In such a case, it is possible to suppress deformation of the design by wiping off.
  • the concave line is curved.
  • the designability is improved as compared to the case where the concave line is simply linear.
  • the symbol portion is asymmetrical with respect to an imaginary line which bisects the dimension in the first direction of the fibrous nonwoven fabric sheet or an imaginary line which bisects the dimension in the second direction. In such a case, the user can grasp the height and width of the sheet by the symbol portion.
  • the width of the concave line changes in the extending direction. In such a case, the designability is improved as compared with the case where the concave line is a simple straight line.
  • the concave line has a plurality of slits.
  • the symbol portion has a plurality of symbol portions, and parts of the plurality of symbol portions overlap each other in plan view. In such a case, the area ratio of the concave line increases in the overlapping portion, and the wiping performance is further excellent.
  • a second invention relates to a fibrous nonwoven fabric sheet formed by interlacing fibers, having a thickness direction and first and second surfaces facing each other in the thickness direction.
  • a symbol portion is disposed on the first surface, and a line forming the symbol portion changes in width in the extending direction.
  • the fiber non-woven sheet according to the second invention includes the following preferred embodiments.
  • the line forming the symbol is a concave line which is concave toward the second surface in the first surface, and the concave line is formed by interlacing fibers. In such a case, the softness and the touch are excellent as compared with the case where the concave line is formed by embossing.
  • the line forming the symbol has a narrow portion aligned in the extending direction and a wide portion wider than the narrow portion, and the width of the wide portion is the width of the narrow portion At least 1.1 to 5.0 times the dimensions.
  • the difference in the width dimension between the wide portion and the narrow portion becomes clear, and the design is excellent as compared with the case where the concave line is simply linear.
  • the symbol portion has an independent closed outline, and the outline is located apart from the outer peripheral edge of the sheet. In such a case, the design has an independent and closed design, and is superior in design to continuous patterns.
  • It is made of spunlace fiber non-woven fabric, and the concave line is bottomed. In such a case, when wiping dirt such as excrement, dirt that has entered the concave line does not adhere to the hand.
  • the fiber density of the concave line is smaller than the fiber density of the area other than the concave line.
  • the symbol portion further includes a symbol positioned surrounded by the outline. In such a case, the designability is excellent as compared with the case where the concave line is simply linear. (7) The outline of the symbol portion is wider than the line forming the symbol. In such a case, the design can be emphasized more.
  • the line forming the symbol portion has a plurality of slits. In such a case, the area of the concave line is reduced while maintaining the required design and the wiping area, so that the sheet strength is improved.
  • a third invention has a thickness direction, a second direction intersecting the first direction and the first direction, and a first surface and a second surface opposite to each other in the thickness direction, and intermingling constituent fibers.
  • the present invention relates to a formed fibrous nonwoven sheet.
  • the fiber non-woven fabric sheet according to the third aspect of the present invention has a plurality of designs formed of concave lines which are concave toward the second surface in the first surface, and the designs have an independent and closed outer shape.
  • the concave lines are formed by fiber entanglement, and the plurality of designs are characterized in that they are different from one another and the total area of the concave lines is different from one another.
  • the fiber non-woven sheet according to the third invention includes the following preferred embodiments.
  • At least one pattern part among a plurality of pattern parts in the fiber non-woven sheet is located apart from the outer peripheral edge. This makes it possible to improve the design of the fiber non-woven sheet.
  • the fiber non-woven fabric sheet is formed of a concave line and has a sub-pattern located on the outside so as to surround the pattern.
  • the said concave line in a fiber nonwoven fabric sheet has the narrow part and the wide part which differ in the width dimension with respect to the said extending direction in one continuous line in the extending direction. This makes it possible to improve the design of the fiber non-woven sheet.
  • the concave lines of the fibrous nonwoven fabric sheet have, in different lines, first and second lines having different width dimensions with respect to the extending direction. This makes it possible to improve the design of the fiber non-woven sheet.
  • the width dimension of the concave line constituting the sub-pattern is smaller than the width dimension of the concave line constituting the pattern part.
  • the width dimension of the concave line which comprises the sub-pattern in a fiber nonwoven fabric sheet is larger than the width dimension of the concave line which comprises a pattern part. For this reason, even after wiping, it is possible to suppress the decrease in the clarity of the symbol.
  • the design in the fiber non-woven sheet has an outer design and an inner design located inside the outer design, and the width of the outer design is larger than the width of the inner design. For this reason, even after wiping, it is possible to suppress the decrease in the clarity of the inner graphic portion.
  • the fiber non-woven fabric sheet In the fiber non-woven fabric sheet, at least one pattern portion out of the plurality of pattern portions is present in the first direction at an arbitrarily selected position in the second direction. As a result, even if the finger is in contact with a portion where no symbol exists, when wiping off dirt, if the finger is moved in the first direction, the finger hits any symbol, so It is easy to change where the (9)
  • the fiber non-woven sheet is for wipes used in a dry state or a wet state. By this, the sheet
  • the pattern portion is a concave line formed by fiber entanglement and has an independent and closed outline, and the outline is spaced apart from the outer periphery of the sheet Because the sheet as a whole is good in touch, it has high design.
  • the design is located on the first surface, and the width dimension of the line forming the design changes, so that the design is formed by lines having substantially the same width Compared with the case where it is done, it has high design.
  • the fiber non-woven fabric sheet according to the third aspect of the invention has a plurality of designs formed of concave lines that are concave toward the second surface in the first surface, and the concave lines are formed by fiber interlacing, Since it does not have the filmed recess by heat welding, the touch is not easily broken.
  • the designs since the designs have an independent and closed outer shape, and the plurality of designs are different from each other, the design of the fiber non-woven sheet can be improved.
  • the total area of the concave lines of the plurality of pattern parts is different from each other, there are a plurality of pattern parts having different storage capacities for foreign matter, and this allows the user to select and wipe the pattern parts according to the stains. It becomes possible.
  • FIGS. 9 to 16 show a second invention
  • FIGS. 17 to 23 show a specific embodiment of the third invention.
  • BRIEF DESCRIPTION OF THE DRAWINGS The perspective view of a wipes sheet shown as an example of the fiber nonwoven fabric sheet which concerns on 1st invention.
  • Top view of wipes sheet. (A) Sectional drawing in alignment with III (a)-III (a) of FIG. (B) Sectional drawing in alignment with the III (b)-III (b) line of FIG.
  • FIG. 18 Sectional drawing in alignment with XIX (a)-XIX (a) of FIG.
  • B Sectional drawing in alignment with XIX (b)-XIX (b) of FIG.
  • B In the suction drum, the enlarged view of the fiber web on the convex part in the line after water flow was injected.
  • a wipes sheet (a wiping sheet, a nonwoven fabric for wipes) 110 shown as an example of the fiber non-woven fabric sheet of the first invention is a bulky and flexible sheet formed by interlacing fibers. It has a first direction X and a second direction Y which intersect with each other, a thickness direction Z, and first and second surfaces 111 and 112 which face each other in the thickness direction Z.
  • the first surface 111 is also referred to as a wiping surface
  • the second surface 112 is also referred to as a non-wipe surface.
  • the wipes sheet 110 is substantially rectangular and opposed to each other in the second direction Y and extends in the first direction X, and the first and second edges 110 a and 110 b opposed to each other in the first direction X It has an outer peripheral edge composed of first and second side edges 110c and 110d extending in two directions Y.
  • the shape of the wipes sheet 110 is not limited to the illustrated example, and may have various known shapes such as square, circle, oval, triangle, polygon, etc., and various sizes may be selected according to the application. can do.
  • the wipes sheet 110 is used in a dry state or a wet state, and can be used, for example, as a back wipe sheet, a cleaning sheet, a disposable towel, or the like.
  • the fiber non-woven fabric sheet according to the present invention can be suitably used not only for wipes but also as a sheet material constituting a sanitary product such as a surface sheet disposed on the skin facing surface side of a sanitary napkin or disposable diaper .
  • agents to be impregnated with the wipes include surfactants, moisturizers, cooling agents such as ethanol for giving a refreshing feeling to the skin, emollients, PH A modifier, a fragrance, an antioxidant, a chelating agent, a plant extract, an anti-browning agent, an anti-inflammatory agent, a skin activator, an astringent and the like can be used alone or in combination.
  • the wipes sheet 110 includes a first fiber layer 121 forming the first surface 111 side, a second fiber layer 122 forming the second surface 112 side, the first fiber layer 121, and the second fiber layer 121. And an intermediate fiber layer (third fiber layer) 123 located between the fiber layer 122 and the fiber layer 122.
  • the first fiber layer 121, the second fiber layer 122, and the intermediate fiber layer 123 have a multi-layered structure in which the fibers constituting them are three-dimensionally entangled with each other to form a composite.
  • a mixed fiber web of hydrophilic fibers and synthetic fibers can be used.
  • a material of a hydrophilic fiber a water absorption fiber is preferable, More preferably, regenerated fibers, such as a rayon fiber, cotton fiber, etc. can be used.
  • synthetic fibers polyester fibers such as polyethylene terephthalate (PET), polyolefin fibers such as polypropylene (PP), polyethylene (PE) fibers and core-sheath type composite fibers using these fibers are used. be able to.
  • PET polyethylene terephthalate
  • PP polypropylene
  • PE polyethylene
  • core-sheath type composite fibers using these fibers are used. be able to.
  • the material for forming the sheath portion of the composite fiber one having a melting temperature lower than that of the material for forming the core portion is used.
  • Such core-sheath type composite fibers include, for example, combinations of polyethylene and polypropylene, polyethylene and polyester, and polypropylene and polyester.
  • the "synthetic fiber” is one in which the material of the fiber itself is hydrophobic, and also includes one obtained by treating the material with a hydrophilizing agent. As a hydrophilization treatment of the fiber which consists of the material, what attached the hydrophilizing agent (oil agent) to the fiber surface, or what made the fiber contain a hydrophilizing agent (oil agent) is mentioned.
  • PET fiber is a kind of polyester fiber having the largest production amount among synthetic fibers and is excellent in strength, heat resistance, water resistance, acid resistance, alkali resistance and the like, and is suitable as a sheet material of wipes sheet 110 It is.
  • the intermediate fiber layer 123 is formed of hydrophilic fibers such as rayon, cotton, pulp, etc., preferably pulp fibers, and the pulp fibers used are wood pulp in addition to commonly used hardwood and softwood wood fibers. Plant fibers other than fibers, synthetic fibers (preferably those that have been subjected to a hydrophilization treatment), and the like can be combined. Since the pulp fibers are short and the number of fibers per unit area is large, the whiteness of the intermediate fiber layer 123 becomes relatively high, and the visibility of the pattern area 140 can be enhanced. In addition to pulp fibers, manila hemp, mochi, three mochi, and linter pulp may be mixed.
  • the first and second fiber layers 121 and 122 are mainly composed of hydrophobic fibers, and the hydrophobic layer is considered to be a hydrophilic layer, and the intermediate fiber layer 123 is mainly composed of hydrophilic fibers and thus it can be said to be a hydrophilic layer. .
  • the wipes sheet 110 has a thickness dimension D101 of 0.3 to 1.0 mm, a mass of 40 to 60 g / m 2 , and an apparent density of 0.03 to 0.09 g / cm 3 .
  • a thickness measurement device manufactured by PEACOCK, measurement surface ⁇ 44 mm, measurement pressure 3 g / cm 3 .
  • the average fineness of rayon fibers and PET fibers used for the first and second fiber layers 121 and 122 is 1.5 to 2.5 dtex, and the average fiber length of rayon fibers and PET fibers is 20 to 50 mm, preferably , 35-45 mm.
  • the average fiber length of the pulp fibers is 1 to 10 mm, preferably 2 to 5 mm.
  • the average denier of the constituent fibers of the first and second fiber layers 121 and 122 forming the first and second surfaces of the wipes sheet 110 and the average fiber length are made larger than the constituent fibers of the intermediate fiber layer 123 (Fiber unevenness) becomes good, and the difference in the amount of fibers of the concave line 118 constituting the pattern area 140 can be suppressed, and the required visibility and shape stability can be secured.
  • the wipes sheet 110 has a graphic area 140 formed of a concave line 118 which is concave toward the second surface 112 on the first surface 111.
  • the concave line 118 is formed by entanglement of fibers, and has a bottom 118a with a bottom and both walls 118b and 118b surrounding the bottom 118a.
  • Concave line is bottomed means that a continuous opening is not formed in the extending direction of the concave line 118, and the large and small fibers formed by the reorientation of the fiber in the fluid injection process Even if there is a gap, it can be said to be bottomed if a continuous hole is not formed in the extending direction.
  • the concave line 118 has a bottom, for example, when the wipes sheet 110 is used as a wipe sheet, excrement that has entered the concave line 118 after being wiped off is used by the user's finger. There is no adhesion.
  • the symbol area 140 has a first symbol portion 141 and a second symbol portion 142 which have different designs.
  • the first design portion 141 has a substantially circular outline 141A formed from the concave line 118, and a substantially star-shaped design 141B surrounded by the outline 141A.
  • the second symbol portion 142 has a substantially elliptical outline 142A, and a pattern 142B surrounded by the outline 142A, in which a plurality of characters are arranged in a plurality of lines arranged in the second direction Y.
  • the first symbol portion 141 and the second symbol portion 142 are located side by side substantially at the center of the first direction X.
  • the symbol area 140 further includes a third symbol portion 143 formed of a part of the first and second symbol portions 141 and 142 and a relatively small fourth symbol portion 144 in a heart shape.
  • the first and second design parts 141 and 142 have a relatively large area on the first surface 111, and can exhibit a complete design by itself to impress the user. It can be said that it is a design.
  • the third pattern portion 143 is incomplete and does not exhibit any design property by itself, and the fourth pattern portion 144 is relatively small, and a design which impresses the user by itself Since it can not be said that it exhibits sex, it can be said that the 3rd and 4th symbol parts 143 and 144 are secondary designs.
  • the first and second designs 141 and 142 have independent and closed outlines 141A and 142A, and the outlines 141A and 142A are located apart from the outer peripheral edge of the wipes sheet 110.
  • the outlines 141A and 142A of the first and second designs 141 and 142 are independent means that they extend to the outer peripheral edge of the fabric like the ground pattern of the woven fabric and grasp the entire outer shape It is not a continuous pattern that can not be used, but means one that is located apart from the outer peripheral edge of the wipes sheet 110 and has completely independent design. Therefore, for example, as in the case of the third design portion 143, those whose outline 143A does not reach the outer edge of the sheet and can not grasp the overall design do not correspond to independent outlines.
  • the outlines 141A and 142A of the first and second designs 141 and 142 are closed, the outlines 141A and 142A extend continuously or discontinuously so as to surround the designs 141B and 142B. It means that.
  • the outlines 141A and 142A may have various known shapes such as a circle, an ellipse, a triangle, and a polygon, as long as the outlines 141A and 142A surround the symbols 141B and 142B.
  • the designs 141B and 142B of the first and second designs 141 and 142 are preferably designed to be recognized by the user at first glance, and in addition to the illustrated example, anime and cartoon characters , Logos for advertising a company, various well-known design designs, letters, figures, symbols, and designs having messages by combinations thereof.
  • the characters include alphabetic characters, hiragana characters, katakana characters, kanji characters and characters of foreign languages (eg, Indonesian characters).
  • the first and second pattern parts 141 and 142 are main design areas having a three-dimensional shape, and can also be said to be wiping areas for wiping out excrement and dust. That is, when using the wipes sheet 110, with the first surface 111 as a wiping surface, dirt attached to the surface to be wiped such as a body or a table is an edge on the first surface 111 side of both side walls 118b of the concave line 118 (Edge) 118c can be used to effectively wipe away dirt.
  • the first and second symbols 141 and 142 have required sizes. It is preferable to have an area of at least 10% or more of the surface area of the wipes sheet 110, for example. On the other hand, since the fourth symbol portion 144 has a relatively small area, it does not function as a main wiping area.
  • a spunlace non-woven fabric formed by hydroentangling treatment is suitably used as the wipes sheet in consideration of bulkiness and touch, and the sheet surface is preferably used to improve its design and wiping properties. It is known to impart a three-dimensional pattern raised entirely from the sheet surface by fiber entanglement, or to provide an uneven pattern such as a geometric pattern or a lace pattern.
  • the designability is further improved as compared to the printed pattern, and the raised outer peripheral edge can wipe off the dirt.
  • the design itself since the design itself has a raised shape, it may be in sliding contact with the surface to be wiped off at the time of wiping, and the form of the design may be broken due to friction.
  • the wipes sheet has a continuous uneven pattern, it is not completely independent as a design, so that the design can not be strongly impressed to the user.
  • it since it is continuously applied in the machine direction by a fluid at the time of manufacture, it can exhibit its designability only by having a completely independent aspect, for example, high design of characters, characters, symbols, etc. It is not possible to adopt one with gender or message nature.
  • the wipes sheet may be heat embossed (debossed) to form a pattern having a plurality of concave lines, but in such a case, the constituent fibers are heat-welded by heat embossing to form a concave shape.
  • the inside of the line becomes relatively hard, and the inherent flexibility and texture of the spunlace nonwoven fabric are lost.
  • the embossed portion may hit the skin and may cause discomfort or irritation, and may be easily broken.
  • the concave lines 118 forming the pattern area 140 are formed by the entanglement of fibers, as a whole nonwoven fabric as compared with the case where they are formed by heat embossing treatment It is soft and has a good touch, and can maintain the characteristic drape of spunlace nonwoven fabric.
  • the first and second design parts 141 and 142 have independent outlines 141A and 142A, a design having a completely independent aspect can be adopted, and it is a simple continuous pattern extending to the outer edge of the sheet. In comparison, it is possible to improve the aesthetic appearance with excellent design.
  • the pattern area 140 itself is raised, light may be scattered and its outer contour may be blurred, but since it is formed by the concave line 118, the outer contour is made clearer to the user Can be made to understand. Further, since the portion other than the concave line 118 is in direct sliding contact with the surface to be wiped off at the time of wiping, the shape of the concave line 118 is not broken by friction and the pattern area 140 is not largely deformed.
  • the outlines 141A and 142A are closed, and the designs 141B and 142B are arranged so as to be surrounded by the outlines 141A and 142A. Even when the user pulls or loosens the wipes sheet 110 by deforming the wipes sheet 110 because the designs 141B and 142B are surrounded by the outlines 141A and 142A, the outlines 141A and 142A are the starting point. As the symbol 141B is deformed, the design 141B, 142B can maintain its shape.
  • the 3rd and 4th symbol parts 143 and 144 are located in the circumference
  • the first and second designs 141 and 142 preferably have curved concave lines 118 from the viewpoint of wiping performance and aesthetics. Also in the present embodiment, the outlines 141A and 142A are curved, and the patterns 141B and 142B also have curved portions. As described above, the first and second pattern parts 141 and 142 have a curved concave line 118, which can give a soft and good impression of contact with the skin, and deform according to the shape of the surface to be wiped. For example, the first and second designs 141 and 142 can be deformed along the narrow and curved grooves of the surface to be wiped to wipe off dirt.
  • the user can easily recognize that the first surface 111 is a wiping surface by positioning the symbol area 140 including the concave line 118 on the first surface 111 side. Therefore, it can be said that the symbol area 140 also has a function of guiding the user to use the first surface 111 as a wiping surface.
  • the first and second pattern parts 141 and 142 of the pattern area 140 can function as a wiping area, but the third and fourth pattern parts 143 and 144 are also formed from the concave line 118 Therefore, it has a certain degree of wiping properties. Therefore, the user can appropriately select and use one of the first to fourth symbol parts 141 to 144 according to the size of the stain at the time of wiping.
  • the recessed lines 118 forming the outlines 141A and 142A are generally wider than the recessed lines 118 forming the designs 141B and 142B. Since the outlines 141A and 142A are relatively wide, it is possible to attract the user's attention and further enhance the designs 141B and 142B surrounded by the user. In addition, after wiping dirt roughly by outlines 141A and 142A at the time of wiping off, persistent dirt can be scraped off by relatively narrow and densely gathered designs 141B and 142B located in the inside .
  • the pattern area 140 has a plurality of first to fourth pattern portions 141-144 having different designs, thereby dividing the dimensions of the wipes sheet 110 in the first direction X into two equal parts: a first imaginary line P and a second direction It has an asymmetrical shape with respect to a second imaginary line Q which bisects the dimension of Y. Therefore, the user can be made to recognize the longitudinal direction and the width direction of the wipes sheet 110. Thus, as long as the vertical and horizontal directions of the wipes sheet 110 can be recognized, the symbol area 140 may be asymmetric with respect to either the first virtual line P or the second virtual line Q.
  • the second direction Y corresponds to the machine direction in the manufacturing process
  • the first direction X corresponds to the direction intersecting the machine direction
  • the constituent fibers are mainly oriented in the second direction Y.
  • the wiping direction is a direction in which the fibers are oriented and the sheet strength is along the second direction Y higher than the first direction X
  • the pattern area 140 asymmetrically, the second direction Y is the wiping direction It can be recognized as (vertical direction).
  • the symbol 142B of the second symbol 142 by arranging the design element so that the second direction Y is in the vertical direction, the user can be induced to wipe in the second direction Y.
  • the second symbol 142 is asymmetric with respect to an imaginary line (not shown) that divides the dimension in the first direction X into two equal parts.
  • the concave line 118 forming the symbol area 140 has a first portion 181 extending in the second direction Y and a second portion 182 extending in the first direction X.
  • the fiber orientation in the second portion is in the second direction Y, and in the first portion 181, the number of fibers oriented in the second direction Y is smaller than that in the second portion 182 per unit area. .
  • the second portion 182 since the fiber orientation is in the second direction Y, when the second direction Y is the wiping direction, the required tensile strength is exhibited, and the concave shape is not broken.
  • the upper and lower parts (for example, the head and body)
  • the design shape can be maintained even after removal from the packaging package after wiping or, for example, frictional resistance in the second direction Y, for example, without losing the outer shape contour and the upper and lower dimensional balance.
  • the shape is unlikely to collapse and the width dimension tends to be narrow.
  • the first direction X is the wiping direction
  • the width dimension of the first portion 181 Spreads.
  • the width dimension is expanded, but the appearance image can be maintained, rather, it can be changed to a rounded character design preferred by infants.
  • the fiber orientation is the direction in which the fibers are flowing in plan view of the wipes sheet 110, and "the fiber orientation of the second portion is the second direction Y" constitutes the second portion.
  • 50% or more of the fibers have fiber orientation in the range of -45 ° to + 45 ° with respect to the second direction Y Including things.
  • Such fiber orientation can be measured by a method known in the field of this kind, for example, a measurement method according to the fiber orientation test method based on the zero distance tensile strength of TAPPI standard method T481.
  • the fiber orientation is determined from the tensile strength ratio (first direction X / second direction Y) in the first direction X and the second direction Y of the second part. It may be measured.
  • the first portion 181 extends along the first imaginary line P if it is linear, the second portion 182 along the second imaginary line Q if it is linear Is an extending part.
  • the first part 181 is a part that is convex in the first direction X
  • the second portion 182 is a portion convexly bent in the second direction Y.
  • the designs 141B and 142B of the first and second design parts 141 and 142 an ideal combination of figure design and characters may be adopted.
  • the figure design and the letters correspond to each other by arranging letters such as “I love YOU!” In the placard.
  • a design consisting of a combination of characters consisting of a part of daily conversation between a mother who is a user such as "Good morning” and "Gochisousama” and infants who are a user is adopted.
  • a word that the infant has not remembered or has just remembered can be adopted for the patterns 141B and 142B, and the word can be fixed in the memory of the infant by repeating with the parent and child at the time of use.
  • the symbol area 140 can also be provided with a function as one of the tools capable of creating good communication between the parent and child through the wipes sheet 110.
  • the wipes sheet 110 has a design with high visibility and uniqueness, so unlike the conventional wipes sheet, the high-quality handkerchief of which the design portion is formed seamlessly. It has an aesthetic appearance like that. Therefore, by realizing differentiation from other products, even if the user is a relatively young woman, the Wipess sheet 110 can be carried and used when going out, rather than without hesitation. be able to.
  • the Wipess sheet 110 can be carried and used when going out, rather than without hesitation. be able to.
  • the wipes sheet 110 has both the basic functions as wipes and the emotional value that causes the consumer to buy.
  • the wipes sheet 110 has a fiber density higher than that of the low density area 151 located at the bottom 118 a of the concave line 118 and the low density area 151 located on at least both sides of the low density area 151. It has a density area 152 and a medium density area 153 which has a higher fiber density than the low density area 151 and a lower fiber density than the high density area 152. That is, the fiber density is the lowest at the bottom 118a of the concave line 118, and the high density area 152 having the highest fiber density is located at least on both sides so as to surround the outer periphery of the bottom 118a.
  • the wipes sheet 110 has such a fiber density difference, and the high density area 152 is positioned so as to surround the bottom portion 118a of the concave line 118 consisting of the low density area 151, and a contrast due to the density difference is formed.
  • the dense region 152 is visually recognized in a dark color so as to border the outer peripheral edge of (the bottom 118a of) the concave line 118 due to the density of fibers, and the contour of the concave line 118 can be clearly seen.
  • the high density region 152 has a projecting portion 154 which protrudes outward more than the middle density region 153 on the second surface 112 side.
  • the high density region 152 has a three-dimensional shape that protrudes outward on the second surface 112 side, when viewed by the user from the second surface 112 side where the concave line 118 is not formed. Even, the contour of the concave line 118 can be grasped. Therefore, in combination with the contrast due to color density due to the density difference between the high density region 152 and the low density region 151, the contour of the concave line 118 can be seen more clearly not only from the first surface 111 but also from the second surface 112. It can be done.
  • the second side 112 which is a non-wipe surface may be folded in two and used.
  • the second surfaces 112 of the folded portions come in contact with each other, and during the wiping operation, the contacting portions may be displaced, and the force may not act sufficiently on the wiping surface .
  • the protruding portions 154 of the high density area 152 located on the second surface 112 side function as a stopper that catches on the opposite surface and prevents the sliding of the folded portions, and it takes during the wiping operation Misalignment of the sheets can be suppressed, and sufficient wiping force can be transmitted to the wiping surface.
  • a plurality of symbol parts 141 and 142 having independent and closed outlines 141A and 142A are present in one wipe sheet 110, but at least in consideration of design and wiping properties, at least It is sufficient that one symbol 141 and 142 exist. Also, by having the design area 140 of a different design for each wipes sheet 110, when the user takes it out from the container in which the plurality of wipes sheets 110 are stored, ones having different designs can be drawn out one after another. Therefore, the user can pop up while having fun.
  • the wipes sheet 110 according to the present invention is a production apparatus similar to the non-woven fabric sheet for wipes usually used in this type of field, for example, a fiber web forming unit, a water supply unit for containing water in the fiber web, fibers
  • a manufacturing apparatus including a water jet unit (step), a dewatering unit (dehydrator), and a drying unit (dryer) for confusing and rearranging can be used.
  • An apparatus for manufacturing the wipes sheet 110 and part of the manufacturing process will be described below.
  • a fiber web formed by laminating fiber aggregates manufactured by various known manufacturing methods is formed.
  • the fiber web may be, for example, a fiber assembly formed by a card method, a fiber assembly formed by an air laid method, a fiber assembly formed by a wet method, a fiber assembly formed by a spun bond method, a meltblown method, etc. Can be stacked and formed.
  • the fiber web is the base of the intermediate fiber layer 123 between the fiber aggregates formed by the card method which is the base of the first and second fiber layers 121 and 122 of the wipes sheet 110. It has a multi-layered structure in which fiber aggregates formed by the air laid method are interposed.
  • the fiber web is preferably pre-watered prior to the water jet process to form the fiber entanglement and concave portions corresponding to the concave lines 118 forming the graphic area 140.
  • the fiber gap is filled with water and the fiber density is increased.
  • the fiber jet process it is possible to prevent the fibers from being scattered by the water flow and the fiber density of the fiber web becoming nonuniform, thereby preventing the formation of the fiber web from being disturbed.
  • water may be sprayed by a spray without requiring water pressure to move the fibers.
  • FIG. 4 is a perspective view of a water jet process 400 for forming a recessed portion 422 in the fiber web 401 corresponding to the recessed line 118 of the graphic area 140.
  • the water jet process 400 includes a suction drum 406 for holding the fiber web transported in the machine direction MD on the outer circumferential surface, and a nozzle plate 407 for jetting water to the fiber web located on the outer circumferential surface of the suction drum 406.
  • the fiber web 401 has a first surface 401 a facing the nozzle plate 407 on the outer peripheral surface of the suction drum 406 and a second surface 401 b opposite the outer peripheral surface of the suction drum 406 located on the opposite side.
  • the suction drum 406 includes a shaped support 406 a having linear protrusions 420.
  • the outer peripheral surface of the shaping support 406a is in the form of a mesh having a plurality of suction pipes 421, and the fiber web 401 is drawn to the shaping support 406a while rotating the shaping support 406a around the axis K401. While being held on the surface, it is transported to a dehydrator (not shown) via a downstream transport means (not shown).
  • the nozzle plate 407 jets water toward the first surface 401 a side of the fiber web 401 held on the outer peripheral surface of the suction drum 406 to intertwine the fibers and is located on the outer peripheral surface of the shaping support 406 a
  • a concavo-convex pattern is provided on the second surface 401b side of the fiber web 401.
  • the linear convex portion 420 is formed integrally with or separately from the outer peripheral surface of the shaped support 406 a.
  • the fiber web 401 further transported in the machine direction MD by the transport belt of the dehydrator is transported to the dryer when it is used as a wipe sheet used in a dry state, while it is in a wet state
  • the liquid supply means for impregnating the liquid containing medicines and perfumes with or without a dryer.
  • the fiber webs After the fiber webs have been subjected to these steps, they are cut into appropriate sizes by a cutting means.
  • the dryer a part of the heat fusible fibers constituting the fiber web 401 is heat-fused to improve the sheet strength.
  • a plurality of nozzles aligned in the cross direction CD jets water to the first surface 401a of the fiber web 401 held on the outer peripheral surface of the shaped support 406a of the suction drum 406.
  • the fiber web 401 is preliminarily entangled with fibers in a suction drum (not shown) located upstream of the suction drum 406 so that the fibers are entangled by a weak force so that the entire surface is flat.
  • the fiber web 401 is pressed against the linear convex portion 420 positioned on the outer peripheral surface of the shaping support 406 a by the water flow jetted from the nozzle plate 407 while being sucked from the pipe 421.
  • FIG. 5 (a) is an enlarged view of the fiber web 401 on the linear convex portion 420 before the water flow is injected in the suction drum 406, and FIG. 5 (b) is a line after the water flow is injected in the suction drum.
  • FIG. 6 is an enlarged view of a fiber web 401 on the convex portion 420.
  • the linear convex portions 420 have first, second and third linear convex portions 420a, 420b, and 420 having different designs corresponding to the first, second and fourth design portions 141, 142, 144 of the wipes sheet 110. It has 420c. Since the linear convex portion 420 is a portion protruding from the outer peripheral surface of the shaping support 406 a, various shapes such as a character and a company logo are adopted for shaping on the fiber web 401 in addition to the illustrated mode. be able to.
  • the linear convex portion 420 is disposed on the entire outer periphery of the shaped support 406 a, and all wipes sheets 110 manufactured are also arranged such that a graphic portion having at least one independent and closed design is disposed. It has a pattern. Further, the height of the linear convex portion 420 is designed so that the line width and the height change in the extending direction according to the design to be shaped.
  • the fibers move to the periphery by the water flow and are not sucked by the suction pipe 421.
  • the fiber density is lower than that of the area.
  • the fibers moved from above the linear convex portion 420 are accumulated and the fiber density is relatively high.
  • the fiber density is higher than that of the thin portion 424, and the fiber density is lower than that of the first portion 431.
  • the pulp fibers located in the intermediate fiber layer of the fiber web 401 are shorter in fiber length than the heat-fusion fibers located in the upper and lower layers, and are entangled with each other in the fiber assembly and are moved by water flow It is easy to do. Therefore, in the low density region including the thin portion 424 located on the linear convex portion 420, the pulp fiber moves so as to be blown to the periphery, and the mass of the pulp fiber is compared with the first and second portions 431, 432. It is lower.
  • the water jet process can form a design pattern formed by entanglement of fibers on the fiber web 401, and the concave portion 422, the first portion 431 and the second portion 432 of the fiber web 401 are respectively wipes It corresponds to the concave line 118 (low density area 151), the high density area 152 and the medium density area 153 of the sheet 110.
  • the fibers are reoriented by the linear convex portions 420 disposed on the outer peripheral surface of the shaped support 406 a of the suction drum 406, and the concave portions 422 are formed on the second surface 401 b side of the fiber web 401.
  • relatively thin holes are not formed in the thin portion 424 located in the linear convex portion 420 in the extending direction, and the thin convex portion 420 is surrounded by the linear convex portion 420 in the manufacturing process. The part never falls off.
  • the spunlace manufacturing method by hydroentanglement was illustrated, but air, water vapor, etc. besides water can be used as long as the concave line 118 can be formed by fiber interlacing by fluid treatment. It is also possible to employ a fluid-based manufacturing method.
  • FIG. 6 is a plan view of the wipes sheet 110 similar to FIG. 2 in an example of a modification.
  • each concave line 118 forming the symbol area 140 has a width that varies in the extending direction.
  • the concave line 118 forming the outline 141A, 142A of the first and second designs 141, 142 and the concave line 118 forming the designs 141B, 142B are wide portions 161 aligned in the extending direction And a narrow portion 161.
  • the width dimension in the extending direction of the concave line 118 the designability is improved as compared with the case where it has a mere linear or curved shape.
  • the concave line 118 has a plurality of wide portions 161, the scraping area is increased, and it becomes easier to scrape persistent dirt at a bent portion near the boundary between the narrow portion 161 and the wide portion 161. It is excellent in takeability.
  • FIG. 7 is a plan view of the wipes sheet 110 similar to FIG. 2 in an example of another modified example related to the first invention.
  • each concave line 118 forming the symbol area 140 has a plurality of slits 170 in the direction in which it extends.
  • the pattern area 140 preferably extends continuously in the extending direction from the viewpoint of design and wiping, but a plurality of slits 170 may be arranged and extend discontinuously in this manner.
  • the concave line 118 forming the graphic area 140 has a non-continuous shape, thereby reducing the overall area as compared with the case where it has a continuous shape, thereby improving the sheet strength. sell.
  • FIG. 8 is a plan view of the wipes sheet 110 similar to FIG. 2 in an example of still another modified example related to the first invention.
  • a part of the first symbol 141 and a part of the second symbol 142 are positioned to overlap each other in plan view.
  • the first design portion 141 and the second design portion 142 overlap with each other, so that the ratio of the concave line 118 per unit area of the wipes sheet 110 is large in the overlapping portion. As a result, the wiping efficiency can be improved.
  • the fiber non-woven fabric sheet according to the present invention is not limited to wipes, and sanitary napkins and disposable diapers It can also be used as a component of hygiene products such as breast milk pads.
  • the first and second pattern parts 141 and 142 of the pattern area 140 have independent and closed outlines 141A and 142A formed by the concave lines 118 by fiber interlacing, the overall design is flexible. It is excellent, and can be suitably used as a sheet material in contact with the skin of a sanitary product.
  • Each component constituting the wipes sheet 110 according to the first invention is generally used in this type of field in addition to the materials described herein unless otherwise specified. And various known materials can be used without limitation. Also, the terms “first”, “second” and “third” used in the present specification and claims are merely used to distinguish similar elements, positions, and the like.
  • a wipes sheet (a wiping sheet, a nonwoven fabric for wipes) 210 shown as an example of the fiber non-woven fabric sheet of the second invention is a bulky and flexible sheet formed by interlacing fibers. It has a first direction X and a second direction Y which intersect with each other, a thickness direction Z, and first and second surfaces 211 and 212 which face each other in the thickness direction Z.
  • the first surface 211 is also referred to as a wiping surface
  • the second surface 212 is also referred to as a non-wipe surface.
  • the wipes sheet 210 is substantially rectangular and opposed to each other in the second direction Y and extends in the first direction X, and the first and second end edges 210a and 210b opposed in the first direction X to each other. It has an outer peripheral edge composed of first and second side edges 210c and 210d extending in two directions Y.
  • the shape of the wipes sheet 210 is not limited to the illustrated example, and may have various known shapes such as square, circle, oval, triangle, polygon and the like, and various sizes may be selected according to the application. can do.
  • the wipes sheet 210 is used in a dry state or a wet state, and can be used, for example, as a back wipe sheet, a cleaning sheet, a disposable towel, or the like.
  • the fiber non-woven fabric sheet according to the present invention can be suitably used not only for wipes but also as a sheet material constituting a sanitary product such as a surface sheet disposed on the skin facing surface side of a sanitary napkin or disposable diaper .
  • agents to be impregnated with the wipes include surfactants, moisturizers, cooling agents such as ethanol for giving a refreshing feeling to the skin, emollients, PH A modifier, a fragrance, an antioxidant, a chelating agent, a plant extract, an anti-browning agent, an anti-inflammatory agent, a skin activator, an astringent and the like can be used alone or in combination.
  • the wipes sheet 210 includes a first fiber layer 221 forming the first surface 211 side, a second fiber layer 222 forming the second surface 212 side, and An intermediate fiber layer (third fiber layer) 223 located between the first fiber layer 221 and the second fiber layer 222 is included.
  • the first fiber layer 221, the second fiber layer 222, and the intermediate fiber layer 223 have a multi-layered structure in which the fibers constituting them are three-dimensionally entangled with each other to form a composite.
  • a mixed fiber web of hydrophilic fibers and synthetic fibers can be used.
  • a material of a hydrophilic fiber a water absorption fiber is preferable, More preferably, regenerated fibers, such as a rayon fiber, cotton fiber, etc. can be used.
  • synthetic fibers polyester fibers such as polyethylene terephthalate (PET), polyolefin fibers such as polypropylene (PP), polyethylene (PE) fibers and core-sheath type composite fibers using these fibers are used. be able to.
  • PET polyethylene terephthalate
  • PP polypropylene
  • PE polyethylene
  • core-sheath type composite fibers using these fibers are used. be able to.
  • the material for forming the sheath portion of the composite fiber one having a melting temperature lower than that of the material for forming the core portion is used.
  • Such core-sheath type composite fibers include, for example, combinations of polyethylene and polypropylene, polyethylene and polyester, and polypropylene and polyester.
  • the "synthetic fiber” is one in which the material of the fiber itself is hydrophobic, and also includes one obtained by treating the material with a hydrophilizing agent. As a hydrophilization treatment of the fiber which consists of the material, what attached the hydrophilizing agent (oil agent) to the fiber surface, or what made the fiber contain a hydrophilizing agent (oil agent) is mentioned.
  • PET fiber is a kind of polyester fiber having the largest production amount among synthetic fibers and is excellent in strength, heat resistance, water resistance, acid resistance, alkali resistance, etc., and is suitable as a sheet material of wipes sheet is there.
  • the intermediate fiber layer 223 is formed of hydrophilic fibers such as rayon, cotton, pulp, etc., preferably pulp fibers, and the pulp fibers used are wood pulp in addition to commonly used hardwood and softwood wood fibers. Plant fibers other than fibers, synthetic fibers (preferably those that have been subjected to a hydrophilization treatment), and the like can be combined. Since the pulp fibers have short fibers and the number of fibers per unit area is large, the whiteness of the intermediate fiber layer 223 is relatively high, and the visibility of the pattern area 240 can be enhanced. In addition to pulp fibers, manila hemp, mochi, three mochi, and linter pulp may be mixed.
  • first and second fiber layers 221 and 222 are mainly composed of hydrophobic fibers
  • the hydrophobic layer and the intermediate fiber layer 223 are mainly composed of hydrophilic fibers, so it can be said to be a hydrophilic layer.
  • the thickness dimension D201 of the wipes sheet 210 is 0.3 to 1.0 mm, the mass is 40 to 60 g / m 2 , and the apparent density is 0.03 to 0.09 g / cm 3 .
  • a thickness measurement device manufactured by PEACOCK, measurement surface ⁇ 44 mm, measurement pressure 3 g / cm 3 .
  • the average fineness of rayon fibers and PET fibers used in the first and second fiber layers 221 and 222 is 1.5 to 2.5 dtex, and the average fiber length of rayon fibers and PET fibers is 20 to 50 mm, preferably , 35-45 mm.
  • the average fiber length of the pulp fibers is 1 to 10 mm, preferably 2 to 5 mm.
  • the average denier of the constituent fibers of the first and second fiber layers 221 and 222 forming the first and second surfaces of the wipes sheet 210 and the average fiber length are made larger than the constituent fibers of the intermediate fiber layer 223. (Fiber unevenness) becomes good, and the difference in the amount of fibers of the concave line 218 constituting the pattern area 240 can be suppressed, and the required visibility and shape stability can be secured.
  • wipes sheet 210 has symbol area 240 on first surface 211.
  • the symbol area 240 has a first symbol part 241 and a second symbol part 242 which have different designs.
  • the first symbol portion 241 has a substantially circular outline 241A formed from the concave line 218 and a substantially star-shaped pattern 241B surrounded by the outline 241A.
  • the second symbol portion 242 has a substantially oval outline 242A, and a pattern 242B formed of a plurality of characters, symbols, etc. arranged in the first direction X surrounded by the outline 242A.
  • the first symbol portion 241 and the second symbol portion 242 are located side by side at the approximate center in the first direction X.
  • the symbol 242B has a first row located on the first end edge 210a side and a second row located on the second end edge 210b side.
  • the symbol area 240 further includes a third symbol part 243 formed of a part of the first and second symbol parts 241 and 242 and a relatively small fourth symbol part 244 in a heart shape.
  • the first and second design parts 241 and 242 have a relatively large area on the first surface 211, and can exhibit the complete design by itself to impress the user. It can be said that it is a design.
  • the third pattern portion 243 is incomplete and does not exhibit any design property by itself, and the fourth pattern portion 244 is relatively small, and a design which impresses the user by itself
  • the third and fourth symbol parts 243 and 244 can be said to be secondary symbols because they can not be said to exhibit sex.
  • the designs 241B and 242B of the first and second designs 241 and 242 have designability that can be recognized by the user at first glance, and in addition to the illustrated example, anime and cartoon characters , Logos for advertising a company, various well-known design designs, letters, figures, symbols, and designs having messages by combinations thereof.
  • the characters include alphabetic characters, hiragana characters, katakana characters, kanji characters and characters of foreign languages (eg, Indonesian characters).
  • the pattern area 240 is formed by a line whose width dimension changes in the extending direction.
  • the lines forming the outlines 241A and 242A of the first and second symbol portions 241 and 242 have a wide portion 261 and a narrow portion 262 aligned in the extending direction.
  • the designability is improved as compared to a line in which the width dimensions do not change.
  • the designs 241B and 242B can be made more noticeable.
  • the lines forming the designs 241B and 242B are narrower than the lines forming the outlines 241A and 242A. In this manner, by surrounding the designs 241B and 242B by the relatively wide outlines 241A and 242A, the shapes of the designs 241B and 242B can be more clearly viewed by the contrast of the width dimension.
  • the design element 245 having a high priority to be emphasized is formed by a line wider than the other design elements. A contrast is produced by the width, and the design element 245 can be effectively highlighted.
  • the width dimensions of the wide portions 261 It is preferable that W101 is 1.1 to 5.0 times, preferably 1.2 to 3.0 times as large as the width dimension W202 of the narrow portion 262.
  • the width dimension of the design element is the width dimension of the other design element.
  • the size is preferably 1.1 to 5.0 times, preferably 1.2 to 3.0 times.
  • the wide portion 261 and the narrow portion 262 have such a width-to-dimension ratio, the contrast due to the width dimension difference between the wide portion 261 and the narrow portion 262 becomes clear, and the first and second designs 241 and 242
  • the patterns 241 B and 242 B can be emphasized without breaking the overall design of the pattern area 240.
  • the width dimension W201 of the wide portion 261 and the width dimension W202 of the narrow portion 262 are each 0.5 to 5.0 mm, preferably 0.7 to 3.0 mm. If the width dimensions W201 and W202 are less than 0.5 mm, the concave line 218 may be crushed or a hole may be opened to reduce the visibility, while the width dimensions W201 and W202 may exceed 5.0 mm. During the wiping operation, the dirt held by wiping with the concave line 218 may leak out.
  • the first and second designs 241 and 242 have independent and closed outlines 241A and 242A, and the outlines 241A and 242A are located apart from the outer peripheral edge of the wipes sheet 210.
  • the outlines 241A and 242A of the first and second design parts 241 and 242 are independent means that they extend to the outer peripheral edge of the fabric like the ground pattern of the woven fabric and grasp the entire outer shape It is not a continuous pattern that can not be cut, and means one that is located apart from the outer peripheral edge of the wipes sheet 210 and has completely independent design. Therefore, for example, as in the case of the third design portion 243, those whose outline 243A can not reach the outer periphery of the sheet and can not grasp the overall design do not correspond to independent outlines.
  • the outlines 241A and 242A of the first and second designs 241 and 242 are closed, the outlines 241A and 242A extend continuously or discontinuously so as to surround the designs 241B and 242B. It means that.
  • the outlines 241A and 242A may have various known shapes such as a circle, an ellipse, a triangle, and a polygon, as long as the outlines 241A and 242B surround the patterns 241B and 242B.
  • the line forming the pattern area 240 is a bottomed concave line 218 which is concave toward the second surface 212 in the first surface 211 and is formed by fiber entanglement .
  • the concave line 218 has a bottom portion 218a with a bottom, and both wall portions 218b and 218b surrounding the bottom portion 218a.
  • the pattern area 240 may not be a concave line as long as the line forming the pattern has an aspect in which the width dimension changes in the extending direction, and may be a convex line, or the pattern area 240 itself may be the first It may be a contour line that is three-dimensionally represented by having a shape protruding from the surface 211.
  • Concave line is bottomed means that a continuous opening is not formed in the extending direction of the concave line 218, and the large and small fibers formed by the reorientation of the fibers in the fluid injection process Even if there is a gap, it can be said to be bottomed if a continuous hole is not formed in the extending direction.
  • the concave line 218 has a bottom, for example, when the wipes sheet 210 is used as a wipe sheet, excrement that has entered the concave line 218 after being wiped off is used by the user's finger. There is no adhesion.
  • the first and second pattern parts 241 and 242 are main design areas having a three-dimensional shape, and can also be referred to as wiping areas for wiping out excrement and dust. That is, when using the wipes sheet 210, with the first surface 211 as a wiping surface, dirt attached to the surface to be wiped such as a body or a table is an edge on the first surface 211 side of both walls 218b of the concave line 218 (Edge) 218c can be used to effectively wipe away dirt.
  • the concave line 218 forming the design area 240 changes in width in the extending direction, and by having a plurality of wide portions 261, the scraping area becomes large and the narrow portion 262 and the wide width Since it becomes easier to scrape persistent dirt at a bending portion near the boundary with the portion 261, scraping properties are excellent.
  • the concave lines 218 forming the outlines 241A and 242A are generally wider than the concave lines 218 forming the designs 241B and 242B. In this case, after dirt is roughly wiped off by the outlines 241A and 242A, persistent dirt can be scraped off by the relatively narrow and densely gathered patterns 241B and 242B located inside the dirt.
  • the first and second symbol parts 241 and 242 have required sizes. It is preferable to have an area of at least 10% or more of the surface area of the wipes sheet 210, for example. On the other hand, since the fourth symbol portion 244 has a relatively small area, it does not function as a main wiping area.
  • a spunlace non-woven fabric formed by hydroentangling treatment is suitably used as the wipes sheet in consideration of bulkiness and touch, and the sheet surface is preferably used to improve its design and wiping properties. It is known to impart a three-dimensional pattern raised entirely from the sheet surface by fiber entanglement, or to provide an uneven pattern such as a geometric pattern or a lace pattern.
  • the designability is further improved as compared to the printed pattern, and the raised outer peripheral edge can wipe off the dirt.
  • the design itself since the design itself has a raised shape, it may be in sliding contact with the surface to be wiped off at the time of wiping, and the form of the design may be broken due to friction.
  • the wipes sheet has a continuous uneven pattern, it is not completely independent as a design, so that the design can not be strongly impressed to the user.
  • it since it is continuously applied in the machine direction by a fluid at the time of manufacture, it can exhibit its designability only by having a completely independent aspect, for example, high design of characters, characters, symbols, etc. It is not possible to adopt one with gender or message nature.
  • the wipes sheet may be heat embossed (debossed) to form a pattern having a plurality of concave lines, but in such a case, the constituent fibers are heat-welded by heat embossing to form a concave shape.
  • the inside of the line becomes relatively hard, and the inherent flexibility and texture of the spunlace nonwoven fabric are lost.
  • the embossed portion may hit the skin and may cause discomfort or irritation, and may be easily broken.
  • the concave lines 218 forming the pattern area 240 are formed by the entanglement of fibers, as a whole nonwoven fabric as compared with the case where they are formed by the heat embossing process. It is soft and has a good touch, and can maintain the characteristic drape of spunlace nonwoven fabric.
  • the first and second designs 241 and 242 have independent outlines 241A and 242A, a design having a completely independent aspect can be adopted, and it is a simple continuous pattern extending to the outer edge of the sheet. In comparison, it is possible to improve the aesthetic appearance with excellent design.
  • the pattern area 240 When the pattern area 240 itself is raised, the light may be scattered and its outline may be blurred. However, since the pattern area 240 is formed by the concave line 218, the outline of the outline is given to the user. It can be made to grasp more clearly. Further, since the portion other than the concave line 218 is in direct sliding contact with the surface to be wiped off at the time of wiping, the shape of the concave line 218 is not broken by friction and the pattern area 240 is not largely deformed.
  • the outlines 241A and 242A are closed, and the designs 241B and 242B are arranged so as to be surrounded by the outlines 241A and 242A. Even when the user pulls or loosens the wipes sheet 210 by deforming the wipes sheet 210 because the designs 241B and 242B are surrounded by the outlines 241A and 242A, the outlines 241A and 242A become the starting point. As the shape is deformed, the patterns 241B and 242B can maintain their shape.
  • third and fourth symbol portions 243 and 244 are located around the first and second symbol portions 241 and 242, which are the main wiping areas. Therefore, when the wipes sheet 210 is squeezed, the third and fourth symbol parts 243 and 244 are deformed as a starting point, and the deformation of the first and second symbol parts 241 and 242 located at the center is suppressed. It can be said that
  • the first and second designs 241 and 242 preferably have a curved concave line 218 from the viewpoint of wiping performance and aesthetics. Also in the present embodiment, the outlines 241A and 242A are curved, and the patterns 241B and 242B also have curved portions. As described above, the first and second pattern parts 241 and 242 can have a soft and well-perceived impression by having the curved concave line 218, and can be deformed according to the shape of the surface to be wiped. For example, the pattern portions 241 and 242 can be deformed along the narrow and curved grooves of the surface to be wiped to wipe off the stains.
  • the user can easily recognize that the first surface 211 is a wiping surface by positioning the symbol area 240 including the concave line 218 on the first surface 211 side. Therefore, it can be said that the symbol area 240 also has a function of guiding the user to use the first surface 211 as a wiping surface.
  • the first and second pattern parts 241 and 242 of the pattern area 240 can function as a wiping area, but the third and fourth pattern parts 243 and 244 are also formed from the concave line 218 Therefore, it has a certain degree of wiping properties. Therefore, the user can appropriately select and use one of the first to fourth symbol parts 241 to 244 in accordance with the size of the stain at the time of wiping.
  • the pattern area 240 has a plurality of first to fourth pattern portions 241 to 244 with different designs, thereby dividing the dimensions of the wipes sheet 210 in the first direction X into two equal first virtual lines P and second directions. It has an asymmetrical shape with respect to a second imaginary line Q which bisects the dimension of Y. Therefore, the user can be made to recognize the longitudinal direction and the width direction of the wipes sheet 210. Thus, as long as the vertical and horizontal directions of the wipes sheet 210 can be recognized, the symbol area 240 may be asymmetric with respect to any one of the first virtual line P and the second virtual line Q.
  • the second direction Y corresponds to the machine direction in the manufacturing process
  • the first direction X corresponds to the direction intersecting the machine direction
  • the constituent fibers are mainly oriented in the second direction Y.
  • the wiping direction is the direction in which the fibers are oriented
  • the symbol 242B of the second symbol part 242 by arranging the design element so that the second direction Y is in the vertical direction, the user can be guided to wipe in the second direction Y.
  • the second symbol portion 242 is asymmetrical with respect to an imaginary line (not shown) which divides the dimension in the first direction X into two equal parts.
  • the concave line 218 forming the pattern area 240 has a first portion 281 extending in the second direction Y and a second portion 282 extending in the first direction X.
  • the fiber orientation in the second portion 282 is in the second direction Y, and in the first portion 281, the number of fibers oriented in the second direction Y is smaller than that in the second portion 282 per unit area. There is. As described above, in the second portion 282, since the fiber orientation is in the second direction Y, when the second direction Y is the wiping direction, the required tensile strength is exhibited, and the concave shape is not broken.
  • the upper and lower portions (for example, head and body)
  • the design shape can be maintained even after removal from the packaging package after wiping or, for example, frictional resistance in the second direction Y, for example, without losing the outer shape contour and the upper and lower dimensional balance.
  • the shape is unlikely to collapse and the width dimension tends to be narrow.
  • the first direction X is the wiping direction
  • the width dimension of the first portion 281 Spreads.
  • the case is taken out from the packaging package after wiping or when frictional resistance is generated in the first direction or the second direction Y.
  • the width dimension is expanded, the appearance image can be maintained and rather changed into a rounded character design preferred by infants and children.
  • the fiber orientation is the direction in which the fibers flow in a plan view of the wipes sheet 210, and "the fiber orientation of the second portion is the second direction Y" constitutes the second portion.
  • the fiber orientation in which 500% of the total weight of fibers are oriented in the second direction Y at least 50% has a fiber orientation within the range of -45 ° to + 45 ° with respect to the second direction Y Including things.
  • Such fiber orientation can be measured by a method known in the field of this kind, for example, a measurement method according to the fiber orientation test method based on the zero distance tensile strength of TAPPI standard method T481.
  • the fiber orientation is determined from the tensile strength ratio (first direction X / second direction Y) in the first direction X and the second direction Y of the second part. It may be measured.
  • the first part 281 extends along the first imaginary line P if it is linear, the second part 282 along the second imaginary line Q if it is linear Is an extending part.
  • the first part 281 is a part that is convex in the first direction X
  • the second portion 282 is a portion convexly bent in the second direction Y.
  • the patterns 241B and 242B of the first and second pattern portions 241 and 242 an idea combination of figure design and characters may be adopted.
  • the figure design in which the character has a heart-shaped placard in both hands, the figure design and the letters correspond to each other by arranging letters such as “I love YOU!” In the placard.
  • the design can be improved and the user can be motivated to purchase, and the interest of the user, i.e., the infant can be attracted.
  • a design consisting of a combination of characters consisting of a part of daily conversation between a mother who is a user such as "Good morning” and "Gochisousama” and infants who are a user is adopted.
  • a word that the infant has not remembered or has just remembered can be adopted for the patterns 241B and 242B, and the word can be fixed in the infant's memory by repeating with the parent and child at the time of use.
  • the symbol area 240 can also be provided with a function as one of the tools capable of creating good communication between the parent and child through the wipes sheet 210.
  • the wipes sheet 210 has a design with high visibility and excellent uniqueness, so unlike the conventional wipes sheet, the high-quality handkerchief of which the design portion is formed seamlessly. It has an aesthetic appearance like that. Therefore, by realizing differentiation from other products, even if the user is a relatively young woman, it is possible to carry and use the wipes sheet 210 positively when going out, without being hesitated be able to.
  • the logo design of a company is adopted as the design area 240, it is possible to effectively make the user recognize the brand, and it is possible to exhibit an excellent advertisement function. Therefore, it can be said that the wipes sheet 210 has both the basic function as wipes and the emotional value that can cause the consumer to buy.
  • the wipes sheet 210 has a fiber density higher than that of the low density area 251 located at the bottom 218 a of the concave line 218 and the low density area 251 located on at least both sides of the low density area 251.
  • High density region 252, and medium density region 253 having higher fiber density than low density region 251 and smaller fiber density than high density region 252. That is, the fiber density is the lowest at the bottom 218a of the concave line 218, and the high density region 252 having the highest fiber density is located at least on both sides so as to surround the outer periphery of the bottom 218a.
  • the wipes sheet 210 has such a difference in fiber density, and the high density area 252 is positioned so as to surround the bottom 218a of the concave line 218 consisting of the low density area 251, and a contrast due to the density difference is formed.
  • the dense region 252 is visually recognized in a dark color so as to border the outer peripheral edge of (the bottom portion 218a of) the concave line 218 due to the density of fibers, and the contour of the concave line 218 may be clearly visible.
  • the high density region 252 has a projecting portion 254 which protrudes outward more than the middle density region 253 on the second surface 212 side. Since the high density region 252 has a three-dimensional shape that protrudes outward on the second surface 212 side, even when the user looks from the second surface 212 side where the concave line 218 is not formed. , The contour of the concave line 218 can be grasped. Therefore, the contour of the concave line 218 can be seen more clearly not only from the first surface 211 but also from the second surface 212 in combination with the contrast due to color density due to the density difference between the high density region 252 and the low density region 251. It can be done.
  • the second side 212 which is a non-wipe surface may be folded in two and used. In such a mode of use, the second surfaces 212 of the folded portions come in contact with each other, and during the wiping operation, the contacting portions may be shifted, so that the force does not act on the wiping surface sufficiently. .
  • the protruding portions 254 of the high density area 252 located on the second surface 212 side function as a stopper that is caught on the opposite surface to prevent the sliding of the folded portions thereof, and is applied during the wiping operation. Misalignment of the sheets can be suppressed, and sufficient wiping force can be transmitted to the wiping surface.
  • the wipes sheet 210 according to the present invention is a manufacturing apparatus similar to the non-woven fabric sheet for wipes usually used in this type of field, for example, a fiber web forming unit, a water supply unit for containing water in the fiber web, fibers
  • a manufacturing apparatus including a water jet unit (step), a dewatering unit (dehydrator), and a drying unit (dryer) for confusing and rearranging can be used.
  • An apparatus for manufacturing the wipes sheet 210 and part of the manufacturing process will be described below.
  • a fiber web formed by laminating fiber assemblies manufactured by various known manufacturing methods is formed.
  • the fiber web may be, for example, a fiber assembly formed by a card method, a fiber assembly formed by an air laid method, a fiber assembly formed by a wet method, a fiber assembly formed by a spun bond method, a meltblown method, etc. Can be stacked and formed.
  • the fiber web is the base of the intermediate fiber layer 223 between the fiber aggregates formed by the card method which is the base of the first and second fiber layers 221 and 222 of the wipes sheet 210. It has a multi-layered structure in which fiber aggregates formed by the air laid method are interposed.
  • the fiber web is preferably pre-watered prior to the water jet process to form the fiber entangling and recessed portions corresponding to the recessed lines 218 forming the graphic area 240.
  • the fiber gap is filled with water and the fiber density is increased.
  • the fiber jet process it is possible to prevent the fibers from being scattered by the water flow and the fiber density of the fiber web becoming nonuniform, thereby preventing the formation of the fiber web from being disturbed.
  • water may be sprayed by a spray without requiring water pressure to move the fibers.
  • FIG. 13 is a perspective view of the water jet process 500 for forming a concave portion 522 corresponding to the concave line 218 of the pattern area 240 in the fiber web 501.
  • the water jet process 500 includes a suction drum 506 for holding the fiber web transported in the machine direction MD on the outer circumferential surface, and a nozzle plate 507 for jetting water to the fiber web located on the outer circumferential surface of the suction drum 506.
  • the fiber web 501 has a first surface 501a facing the nozzle plate 507 on the outer peripheral surface of the suction drum 506, and a second surface 501b facing the outer peripheral surface of the suction drum 506 located on the opposite side.
  • the suction drum 506 includes a shaped support 506 a having linear protrusions 520.
  • the outer peripheral surface of the shaping support 506a is in the form of a mesh having a plurality of suction tubes 521, and the fiber web 501 is drawn to the shaping support 506a while rotating the shaping support 506a around the axis K501. While being held on the surface, it is transported to a dehydrator (not shown) via a downstream transport means (not shown).
  • the nozzle plate 507 jets water toward the first surface 501 a side of the fiber web 501 held on the outer peripheral surface of the suction drum 506 to entangle the fibers with each other and is located on the outer peripheral surface of the shaping support 506 a
  • a concavo-convex pattern is provided on the second surface 501b side of the fiber web 501.
  • the linear convex portion 520 is formed integrally or separately with the outer peripheral surface of the shaped support 506 a.
  • the fiber web 501 further transported in the machine direction MD by the transport belt of the dehydrator is transported to the dryer when it is used as a wipe sheet used in a dry state, while it is in a wet state
  • the wipes sheet 210 used in the above it is conveyed to the liquid supply means for impregnating the liquid containing medicines and perfumes with or without a drier.
  • the fiber webs After the fiber webs have been subjected to these steps, they are cut into appropriate sizes by a cutting means.
  • a part of the heat fusible fibers constituting the fiber web 501 is heat-fused to improve the sheet strength.
  • a plurality of nozzles arranged in the cross direction CD jets water to the first surface 501a of the fiber web 501 held on the outer peripheral surface of the shaped support 506a of the suction drum 506.
  • the fiber web 501 is preliminarily entangled with fibers in a suction drum (not shown) located upstream of the suction drum 506 so that the fibers are entangled by a weak force and the entire surface is flat.
  • the fiber web 501 is pressed against the linear convex portion 520 positioned on the outer peripheral surface of the shaped support 506 a by the water flow jetted from the nozzle plate 507 while being sucked from the pipe 521.
  • FIG. 14 (a) is an enlarged view of the fiber web 501 on the linear convex portion 520 before the water flow is jetted in the suction drum 506, and FIG. 6 (b) a line after the water flow is jetted in the suction drum.
  • FIG. 16 is an enlarged view of the fiber web 501 on the convex portion 520.
  • the linear convex portions 520 have first, second and third linear convex portions 520a, 520b, having different designs corresponding to the first, second and fourth design portions 241, 242, 244 of the wipes sheet 210. It has 520c. Since the linear convex portion 520 is a portion protruding from the outer peripheral surface of the shaping support 506 a, in addition to the illustrated mode, shaping is performed on the fiber web 501 by adopting various designs such as a character and a company logo. be able to.
  • the linear convex portion 520 is disposed on the entire outer periphery of the shaped support 506 a, and all wipes sheets 210 produced are also arranged such that a graphic portion having at least one independent and closed design is disposed. It has a pattern. Further, the height of the linear convex portion 520 is designed so that the line width and the height change in the extending direction depending on the design to be shaped.
  • the fiber moves to the periphery by the water flow and is not sucked by the suction pipe 521.
  • the fiber density is lower than that of the area.
  • the fibers moved from above the linear convex portion 520 are accumulated and the fiber density is relatively high.
  • the fiber density is higher than that of the thin portion 524, and the fiber density is lower than that of the first portion 531.
  • the pulp fibers located in the intermediate fiber layer of the fiber web 501 are shorter in fiber length than the heat-fusion fibers located in the upper and lower layers, and are entangled with each other in the fiber assembly and are moved by water flow It is easy to do. Therefore, in the low density region including the thin portions 524 located on the linear convex portions 520, the pulp fibers move so as to be blown to the periphery, and the mass of the pulp fibers is compared with the first and second portions 531 and 532. It is lower.
  • Such a water jet process can form a design pattern formed by entanglement of fibers on the fiber web 501, and the concave portion 522, the first portion 531 and the second portion 532 of the fiber web 501 are respectively wipes It corresponds to the concave line 218 (low density area 251), the high density area 252 and the medium density area 253 of the sheet 210.
  • the fibers are reoriented by the linear convex portions 520 disposed on the outer peripheral surface of the shaped support 506 a of the suction drum 506, and the concave portions 522 are formed on the second surface 501 b side of the fiber web 501. Since the thin portion 524 located in the linear protrusion 520 is not formed with a relatively large opening in the extending direction, the thin portion 524 is surrounded by the linear protrusion 520 during the manufacturing process. The part never falls off.
  • a spunlace manufacturing method by hydroentanglement has been exemplified, but air, water vapor, etc. besides water can be used as long as the concave line 218 can be formed by fiber entanglement by fluid treatment. It is also possible to employ a fluid-based manufacturing method.
  • FIG. 15 is a plan view of the wipes sheet 210 similar to FIG. 2 in an example of another modified example related to the second invention.
  • each concave line 218 forming the graphic area 240 has a plurality of slits 270 in the extending direction.
  • the pattern area 240 preferably extends continuously in the extending direction from the viewpoint of design and wiping, but a plurality of slits 270 may be arranged and extend discontinuously in this manner.
  • the concave line 218 forming the graphic area 240 has a non-continuous shape, so that the overall area is reduced as compared with the case where it has a continuous shape, and thus the sheet strength is improved. sell.
  • FIG. 16 is a plan view of a wipes sheet 210 similar to FIG. 2 in an example of still another modified example related to the second invention.
  • a part of the first symbol part 241 and a part of the second symbol part 242 overlap with each other in plan view.
  • the first design portion 241 and the second design portion 242 overlap with each other, so that the ratio of the concave line 218 per unit area of the wipes sheet 210 is large in the overlapping portion.
  • the wiping efficiency can be improved.
  • the fiber non-woven fabric sheet according to the present invention is not limited to wipes, and sanitary napkins and disposable diapers It can also be used as a component of hygiene products such as breast milk pads.
  • the lines forming the first and second pattern parts 241 and 242 of the pattern area 240 are excellent in designability because the width dimension changes in the extending direction, and the touch is good, and thus the hygiene It can be suitably used as a sheet material in contact with the skin of the product.
  • each component constituting the wipes sheet 210 according to the second invention in addition to the materials described herein, it is usually used in this type of field unless otherwise specified. And various known materials can be used without limitation. Also, the terms “first”, “second” and “third” used in the present specification and claims are merely used to distinguish similar elements, positions, and the like.
  • a wipes sheet (wipe sheet) 310 shown as an example of the fiber non-woven fabric sheet of the third invention is a bulky and flexible sheet formed by interlacing constituent fibers, A first direction X and a second direction Y crossing each other (orthogonal), a thickness direction Z intersecting (orthogonal) in the first direction X and the second direction Y, and a first surface facing each other in the thickness direction Z And 311 and the second surface 312.
  • the first surface 311 is also referred to as a wiping surface
  • the second surface 312 is also referred to as a non-wipe surface.
  • the wipes sheet 310 is substantially rectangular, and is opposed to each other in the first direction X with the first end 310 a and the second end 310 b opposed to each other in the second direction Y and extending in the first direction X. It has an outer peripheral edge composed of a first side edge 310 c and a second side edge 310 d extending in the second direction Y.
  • the wipes sheet 310 is used in a dry state or a wet state, and can be used, for example, in disposable butting sheets, disposable cleaning sheets, disposable towels and the like.
  • the fiber non-woven fabric sheet according to the present invention is not limited to wipes, but is suitably used as a sheet material constituting a surface sheet etc. disposed on the skin facing surface side of sanitary products such as sanitary napkins, disposable diapers and breast milk pads. It can be used.
  • agents to be impregnated with the wipes include surfactants, moisturizers, cooling agents such as ethanol for giving a refreshing feeling to the skin, emollients, PH A modifier, a fragrance, an antioxidant, a chelating agent, a plant extract, an anti-browning agent, an anti-inflammatory agent, a skin activator, an astringent and the like can be used alone or in combination.
  • the wipes sheet 310 includes a first fiber layer 321 forming the first surface 311 side, a second fiber layer 322 forming the second surface 312 side, a first fiber layer 321, and a second fiber layer 321. And an intermediate fiber layer (third layer) 323 positioned between the fiber layer 322 and the fiber layer 322.
  • the first fiber layer 321, the second fiber layer 322, and the intermediate fiber layer 323 have a multi-layered structure in which the fibers constituting them are three-dimensionally entangled with each other to form a composite.
  • a mixed fiber web of hydrophilic fibers and synthetic fibers can be used.
  • a material of a hydrophilic fiber a water absorption fiber is preferable, More preferably, regenerated fibers, such as a rayon fiber, cotton fiber, etc. can be used.
  • synthetic fibers polyester fibers such as polyethylene terephthalate (PET), polyolefin fibers such as polypropylene (PP), polyethylene (PE) fibers and core-sheath type composite fibers using these fibers are used. be able to.
  • PET polyethylene terephthalate
  • PP polypropylene
  • PE polyethylene
  • core-sheath type composite fibers using these fibers are used. be able to.
  • the material for forming the sheath portion of the composite fiber one having a melting temperature lower than that of the material for forming the core portion is used.
  • Such core-sheath type composite fibers include, for example, combinations of polyethylene and polypropylene, polyethylene and polyester, and polypropylene and polyester.
  • the "synthetic fiber” is one in which the material of the fiber itself is hydrophobic, and also includes one obtained by treating the material with a hydrophilizing agent. As a hydrophilization treatment of the fiber which consists of the material, what attached the hydrophilizing agent (oil agent) to the fiber surface, or what made the fiber contain a hydrophilizing agent (oil agent) is mentioned.
  • the first fiber layer 321 and the second fiber layer 322 preferably, fibers in which rayon fibers and PET (polyethylene terephthalate) fibers are mixed at a ratio (mass%) of 20:80 to 80:20 It is formed from the web.
  • PET fiber is a kind of polyester fiber having the largest production amount among synthetic fibers and is excellent in strength, heat resistance, water resistance, acid resistance, alkali resistance, etc., and is suitable as a sheet material of wipes sheet is there.
  • first fiber layer 321 and the second fiber layer 322 are mainly composed of hydrophobic fibers, they can be said to be hydrophobic layers, and the intermediate fiber layer 323 is mainly composed of hydrophilic fibers, so that they are hydrophilic. It can be said that it is a layer.
  • the intermediate fiber layer 323 is formed of hydrophilic fibers such as rayon, cotton and pulp, preferably pulp fibers, and the pulp fibers used are wood pulp in addition to commonly used hardwood and softwood wood fibers. Plant fibers other than fibers, synthetic fibers (preferably those that have been subjected to a hydrophilization treatment), and the like can be combined. Pulp fibers have short fibers, and the number of fibers per unit area is large, and the whiteness of the intermediate fiber layer 323 is relatively high, and the visibility of the pattern area 340 can be enhanced. In addition to pulp fibers, manila hemp, mochi, three mochi, and linter pulp may be mixed.
  • the thickness dimension D301 of the wipes sheet 310 is about 0.3 to 1.0 mm, the weight is about 40 to 60 g / m 2 , and the apparent density is 0.03 to 0.09 g / cm 3 .
  • a thickness measurement device manufactured by PEACOCK, measurement surface ⁇ 44 mm, measurement pressure 3 g / cm 3 .
  • the fineness of rayon fibers and PET fibers used for the first fiber layer 321 and the second fiber layer 322 is 1.5 to 2.5 dtex, and the fiber length of rayon fibers and PET fibers is 20 to 50 mm, preferably It is 35-45 mm.
  • the fiber length of pulp fibers is 1 to 10 mm, preferably 2 to 5 mm.
  • the wipes sheet 310 has a graphic area 340 formed of a concave line 318 which is concave toward the second surface 312 in the first surface 311.
  • the concave line 318 is formed by entanglement of constituent fibers, and has a bottomed bottom portion 318a and side portions 318b surrounding the bottom portion 318a like a wall in the cross section of the concave line 318 shown in FIG. 3 (b).
  • Concave line is bottomed means that a continuous opening is not formed in the extending direction of the concave line 318, and the large and small fibers formed by the reorientation of the fibers in the fluid injection process Even if there is a gap, it can be said to be bottomed if a continuous hole is not formed in the extending direction.
  • the concave line 318 has a bottom, for example, when the wipes sheet 310 is used as a wipe sheet, excrement (foreign matter) that has entered the concave line 318 after wiping is used by the user Can be prevented from adhering to the finger of the patient.
  • the symbol area 340 has a first symbol part 341 and a second symbol part 342 which have different designs.
  • the first symbol portion 341 has a substantially circular outline 341A formed from the concave line 318 and a substantially star-shaped pattern 341B surrounded by the outline 341A.
  • the second symbol portion 342 has a substantially oval outline line 342A, and a pattern 342B surrounded by the outline line 342A, in which a plurality of characters are arranged in a plurality of lines arranged in the second direction Y.
  • the first symbol part 341 and the second symbol part 342 are located side by side at the approximate center in the first direction X.
  • the symbol region 340 further has a third symbol portion 343 which is a part of the first symbol portion 341 and the second symbol portion 342 being cut, and further has a heart-shaped relatively small sub-symbol 344.
  • the first symbol part 341 and the second symbol part 342 have a relatively large area on the first surface 311, and can exhibit a complete design by itself to impress the user. It can be said that it is the main symbol (main symbol).
  • the third symbol 343 is incomplete and does not exhibit any design property by itself, it can be said that the third symbol 343 is a secondary symbol.
  • sub-pattern 344 is relatively small and can not be said to exhibit design that impresses the user on its own.
  • the third symbol portion 343 and the sub symbol 344 are located outside so as to surround the first symbol portion 341 and the second symbol portion 342. Thereby, the design of the wipes sheet 310 can be improved.
  • the width dimension of the concave line 318 constituting the sub-pattern 344 is smaller than the width dimension of the concave line 318 constituting the first symbol portion 341 and the second symbol portion 342. This makes it possible to make the sub-design 344 inconspicuous, while making the first design portion 341 and the second design portion 342 more noticeable.
  • the first symbol portion 341 and the second symbol portion 342 have independent and closed outlines 341A and 342A, and the outlines 341A and 342A are the outer peripheral edge of the wipes sheet 310 (first end edge 310a, second end edge 310b, an outer peripheral edge defined by the first side edge 310c and the second side edge 310d).
  • the outlines 341A and 342A of the first design portion 341 and the second design portion 342 are independent extends to the outer peripheral edge of the fabric like the ground pattern of the woven fabric and grasps the entire outer shape It is not a continuous pattern that can not be used, but means one that is located away from the outer periphery of the wipes sheet 310 and has completely independent design. Therefore, for example, as in the case of the third design portion 343, the outer contour 343A does not reach the outer periphery of the sheet and can not grasp the overall design, which does not correspond to an independent outer contour.
  • the outlines 341A and 342A of the first symbol part 341 and the second symbol part 342 are closed, the outlines 341A and 342A extend continuously or discontinuously so as to surround the symbols 341B and 342B.
  • Means to The outlines 341A and 342A may have various known shapes such as a circle, an ellipse, a triangle, and a polygon, as long as the outlines 341A and 342A have an aspect surrounding the symbols 341B and 342B.
  • the design 341B of the first design 341 and the design 342B of the second design 342 have a design that will be recognized by the user at first glance.
  • Character logos for promoting a company, various well-known design designs, letters, figures, symbols, and designs having messages by combinations thereof.
  • the characters include alphabetic characters, hiragana characters, katakana characters, kanji characters and characters of foreign languages (eg, Indonesian characters).
  • the sub pattern 344 does not have to be designed to be recognized by the user at first glance, and in addition to the illustrated example, it has a star shape, an annular shape resembling a bubble, etc. It is also good.
  • the first symbol portion 341 and the second symbol portion 342 are main design regions having a three-dimensional shape, and can also be said to be wiping regions for wiping foreign substances such as excrement and dust. That is, when using the wipes sheet 310, with the first surface 311 as a wiping surface, the dirt attached to the surface to be wiped such as a body or a table is an edge on the first surface 311 side of the both sides 318b of the concave line 318 Edges 318c can be used to effectively wipe away dirt.
  • the first symbol 341 and the second symbol 342 have required sizes. It is preferable to have an area of, for example, at least 10% or more of the surface area of the wipes sheet 310. On the other hand, since the sub pattern 344 has a relatively small area, it does not function as a main wiping area.
  • a spunlace non-woven fabric formed by hydroentangling treatment is suitably used as the wipes sheet in consideration of bulkiness and touch, and the sheet surface is preferably used to improve its design and wiping properties. It is known to impart a three-dimensional pattern that is entirely raised from the sheet surface by fiber entanglement, and to give an uneven pattern such as a geometric pattern or a lace pattern.
  • the designability is further improved as compared to the printed pattern, and the raised outer peripheral edge can wipe off the dirt.
  • the design itself since the design itself has a raised shape, it may be in sliding contact with the surface to be wiped off at the time of wiping, and the form of the design may be broken due to friction.
  • the wipes sheet has a continuous uneven pattern, it is not completely independent as a design, so that the design can not be strongly impressed to the user.
  • it since it is continuously applied in the machine direction by a fluid at the time of manufacture, it can exhibit its designability only by having a completely independent aspect, for example, high design of characters, characters, symbols, etc. It is not possible to adopt one with gender or message nature.
  • the wipes sheet may be heat embossed (debossed) to form a pattern having a plurality of concave lines, but in such a case, the constituent fibers are heat-welded by heat embossing to form a concave shape.
  • the inside of the line becomes relatively hard, and the inherent flexibility and texture of the spunlace nonwoven fabric are lost.
  • the embossed portion may hit the skin and may cause discomfort and irritation, and may be easily broken.
  • the whole nonwoven fabric is formed as compared to the case where they are formed by heat embossing. As soft as it has good feel, it can maintain the flexibility unique to spunlace nonwoven fabrics. Also, since the first symbol part 341 and the second symbol part 342 have independent outlines 341A, 342A, a design having a completely independent aspect can be adopted, and a mere continuous pattern extending to the sheet outer peripheral edge can be adopted. Compared with, it is possible to improve the aesthetic appearance with excellent design.
  • the pattern area 340 When the pattern area 340 itself is raised, light may be scattered and its outline may be blurred. However, since it is formed by the concave line 318, the outline is made clearer to the user. Can be made to understand. Further, at the time of wiping, since the portions other than the concave line 318 are in direct sliding contact with the surface to be wiped, the shape of the concave line 318 is not broken by friction and the pattern area 340 is not largely deformed.
  • the outlines 341A and 342A are closed, and the symbols 341B and 342B are arranged so as to be surrounded by the outlines 341A and 342A. Even when the user pulls or loosens the wipes sheet 310 to deform the wipes sheet 310 because the patterns 341B and 342B are surrounded by the outlines 341A and 342A, the outlines 341A and 342A are the starting point. As the shape is deformed, the patterns 341B and 342B can maintain their shape.
  • the first symbol 341 and the second symbol 342 are different in design from each other, and the total area of the concave line 318 is different from each other. As a result, since the symbol parts 341 and 342 having different storage capacities for foreign substances exist, it is possible for the user to select and wipe the symbol parts 341 and 342 according to the amount of contamination.
  • a third symbol portion 343 and a sub symbol 344 are located around the first symbol portion 341 and the second symbol portion 342 which are main wiping areas. Therefore, when the wipes sheet 310 is squeezed, the third symbol 343 and the sub symbol 344 are deformed as a starting point, and the deformation of the first symbol 341 and the second symbol 342 located at the center is suppressed. It can be said that
  • the 1st pattern part 341 and the 2nd pattern part 342 have the curved concave line 318 from a viewpoint of wiping off property and an aesthetics.
  • the outlines 341A and 342A are curved, and the patterns 341B and 342B also have curved portions.
  • the first and second pattern portions 341 and 342 have a curved concave line 318, so that they can give a soft and good impression on the skin and can be deformed according to the shape of the surface to be wiped.
  • the pattern portions 341 and 342 can be deformed along the narrow and curved concave line 318 of the surface to be wiped to wipe off dirt.
  • the user can easily recognize that the first surface 311 is a wiping surface by positioning the symbol area 340 including the concave line 318 on the first surface 311 side.
  • the first symbol 341 B and the second symbol 342 B are symbols and characters such as notes, and the description is correct when viewed from the first surface 311, and the description is incorrect when viewed from the second surface 312.
  • the symbol area 340 also has a function of guiding the user to use the first surface 311 as a wiping surface.
  • the first symbol 341 and the second symbol 342 in the symbol region 340 can function as a wiping region, but the third symbol 343 and the sub-symbol 344 are also formed from the concave line 318 Therefore, it has a certain degree of wiping properties. Therefore, the user can appropriately select and use one of the first symbol part 341 to the third symbol part 343 and the sub symbol 344 according to the size of the stain at the time of wiping.
  • the concave lines 318 (first line (outside symbol)) forming the outlines 341A, 342A are the concave lines 318 (second line) forming the symbols 341B, 342B. (Inside pattern)) It is wider as a whole. That is, the width dimension in the extending direction of the first line forming the outlines 341A, 342A is larger than the width dimension in the extending direction of the second line forming the patterns 341B, 342B. Thereby, the design of the wipes sheet 310 can be improved.
  • the relatively wide outlines 341A, 342A allow the user's attention to be drawn to draw out the figures 341B, 342B surrounded by the user.
  • the wipes sheet 310 at least one of the plurality of symbol portions 341 to 343 exists in the first direction X at an arbitrarily selected position in the second direction Y. If the user moves the finger in the first direction X, for example, if the finger is in contact with the portion where the symbol portions 341 to 343 do not exist, the portion where any of the symbol portions 341 to 343 is present Therefore, if there is dirt adhering, it is possible to easily change the place where the finger is in contact. In the wipes sheet 310, at least one of the plurality of symbol portions 341 to 343 exists in the second direction Y at an arbitrarily selected portion in the first direction X. For this reason, it is easier to change the place where the finger hits.
  • the pattern area 340 has a plurality of first design parts 341 and second design parts 342 having different designs, thereby dividing the dimensions of the wipes sheet 310 in the first direction X into two equal parts: a first imaginary line P and a second It has an asymmetrical design with respect to a second imaginary line Q which bisects the dimension in the direction Y. Therefore, the user can be made aware of the longitudinal direction and the width direction of the wipes sheet 310. Thus, as long as the vertical and horizontal directions of the wipes sheet 310 can be recognized, the symbol area 340 may be asymmetric with respect to either the first virtual line P or the second virtual line Q.
  • the second direction Y corresponds to the machine direction in the manufacturing process
  • the first direction X corresponds to the direction intersecting the machine direction
  • the constituent fibers are mainly oriented in the second direction Y.
  • the wiping direction is a direction in which the fibers are oriented
  • the sheet strength is along the second direction Y higher than the first direction X
  • the design region 340 asymmetrically, the second direction Y is the wiping direction It can be recognized as (vertical direction).
  • the design element as in the case of the pattern 342B of the second pattern portion 342
  • the design element so that the second direction Y is in the vertical direction, it is possible to guide the user to wipe in the second direction Y.
  • the second symbol 342 is asymmetric with respect to an imaginary line (not shown) that divides the dimension in the first direction X into two equal parts.
  • the concave line 318 forming the symbol area 340 has a second portion 382 extending in the first direction X and a first portion 381 extending in the second direction Y.
  • the fiber orientation in the second portion 382 is in the second direction Y. Therefore, when the second direction Y is the wiping direction, the required tensile strength is exhibited, and the concave shape of the concave line 318 is not broken even after the wiping.
  • the number of fibers oriented in the second direction Y is smaller than that in the second portion 382 per unit area.
  • the second direction Y is the wiping direction
  • the tensile strength of the first portion 381 is smaller than the tensile strength of the second portion 382. Therefore, when the first portion 381 is compared to the second portion 382, the concave shape of the concave line 318 is slightly broken after wiping.
  • the first symbol part 341 and the second symbol part 342 are different in the change mode after wiping by the second portion 382 extending in the first direction X and the first portion 381 extending in the second direction Y.
  • the first portion 381 and the second portion 382 are connected to form the first symbol portion 341 and the second symbol portion 342, but the first portion 381 and the second portion are illustrated. It does not have to be connected to 382.
  • the fiber orientation is the direction in which the fibers are flowing in a plan view of the wipes sheet 310
  • the fiber orientation of the second portion 382 is the second direction is the second portion 382 Of the total weight of fibers constituting the fiber
  • 50% or more has fiber orientation in the range of -45 ° to + 45 ° with respect to the second direction Y
  • Such fiber orientation can be measured by a method known in the field of this kind, for example, a measurement method according to the fiber orientation test method based on the zero distance tensile strength of TAPPI standard method T481.
  • fiber orientation from the tensile strength ratio (first direction X / second direction Y) of the second portion 382 in the first direction X and the second direction Y using a tensile tester described later May be measured.
  • the first part 381 is a part extending along the first imaginary line P if it is linear, and the second part is the second imaginary line Q if it is linear It is a part extending along.
  • the first portion 381 is a portion that is convex in the first direction X
  • the second portion 382 is a portion convexly bent in the second direction Y.
  • the outer shape of the upper and lower portions (for example, head and body)
  • the design shape can be maintained even after removal from the packaging package after wiping or, for example, frictional resistance occurs in the second direction Y without losing the outline or the dimensional balance between the upper and lower sides.
  • the shape is unlikely to collapse and the width tends to be narrow.
  • the first direction X is the wiping direction
  • the width dimension of the first portion 381 Spreads.
  • the width dimension is expanded, but the appearance image can be maintained, rather, it can be changed to a rounded character design preferred by infants.
  • the patterns 341B and 342B of the first and second pattern portions 341 and 342 an idea combination of figure design and characters may be adopted.
  • the figure design in which the character has a heart-shaped placard in both hands, the figure design and the letters correspond to each other by arranging letters such as “I love YOU!” In the placard.
  • the design can be improved and the user can be motivated to purchase, and the interest of the user, i.e., the infant can be attracted.
  • the symbol area 340 can also be provided with a function as one of the tools capable of creating a good conversation between the parent and child through the wipes sheet 310.
  • the wipes sheet 310 has a design with high visibility and uniqueness, so unlike the conventional wipes sheet, the high-quality handkerchief of which the pattern portion is formed seamlessly. It has an aesthetic appearance like that. Therefore, by realizing differentiation from other products, even if the user is a relatively young woman, it is preferable to carry and use the wipes sheet when going out, without hesitation. Can.
  • a logo design of a company is adopted as the design area 340, the user can be made to recognize the brand effectively, and an excellent advertisement function can be exhibited. Therefore, it can be said that the wipes sheet 310 has both the basic functions as wipes and the emotional value that causes the consumer to buy.
  • the wipes sheet 310 has a higher fiber density than the low density area 351 located at the bottom 318 a of the concave line 318 and the low density area 351 located on at least both sides of the low density area 351. It has a density area 352 and a medium density area 353 having a higher fiber density than the low density area 351 and a lower fiber density than the high density area 352. That is, the fiber density is the lowest at the bottom 318 a of the concave line 318, and the high density region 352 having the highest fiber density is located at least on both sides so as to surround the outer periphery of the bottom 318 a.
  • the wipes sheet 310 has such a fiber density difference, and the high density area 352 is positioned so as to surround the bottom 318 a of the concave line 318 consisting of the low density area 351, and a contrast due to the density difference is formed.
  • the dense region 352 is visually recognized in a dark color so as to border the outer peripheral edge of the concave line 318 (bottom portion 318a) due to the density of fibers, and the contour of the concave line 318 can be clearly recognized.
  • the high density region 352 has a protruding portion 354 protruding outward more than the middle density region 353 on the second surface 312 side.
  • the high-density region 352 has a three-dimensional shape that protrudes outward on the second surface 312 side, when viewed by the user from the second surface 312 side where the concave line 318 is not formed. Even, the contour of the concave line 318 can be grasped. Therefore, in combination with the contrast due to color density due to the density difference between the high density region 352 and the low density region 351, the contour of the concave line 318 can be seen more clearly not only from the first surface 311 but also from the second surface 312. It can be done.
  • the second side 312 which is a non-wipe surface may be folded in two and used.
  • the second surfaces 312 of the folded portions come in contact with each other, and during the wiping operation, the contacting portions may be displaced, and the force may not act sufficiently on the wiping surface .
  • the protruding portions 354 of the high density area 352 located on the second surface 312 side function as a stopper that catches on the opposite surface and prevents the sliding of the folded portions, and it takes during the wiping operation. Misalignment of the sheets can be suppressed, and sufficient wiping force can be transmitted to the wiping surface.
  • a plurality of symbol parts 341 and 342 having independent and closed outlines 341A and 342A are present in one wipe sheet 310, but at least in consideration of design and wiping properties, at least It is only necessary that one symbol 341, 342 be present.
  • the design area 340 of a different design for each wipes sheet 310 when the user takes out from the container in which a plurality of wipes sheets 310 are stored, ones having different designs can be drawn out one after another. Therefore, the user can pop up while having fun.
  • the wipes sheet 310 according to the present invention is a manufacturing apparatus similar to the non-woven fabric sheet for wipes usually used in this type of field, for example, a fiber web forming unit, a water supply unit for containing water in the fiber web, fibers
  • a manufacturing apparatus including a water jet unit (step), a dewatering unit (dehydrator), and a drying unit (dryer) for confusing and rearranging can be used.
  • An apparatus for manufacturing the wipes sheet 310 and part of the manufacturing process will be described below.
  • a fiber web formed by laminating fiber aggregates manufactured by various known manufacturing methods is formed.
  • the fiber web may be, for example, a fiber assembly formed by a card method, a fiber assembly formed by an air laid method, a fiber assembly formed by a wet method, a fiber assembly formed by a spun bond method, a meltblown method, etc. Can be stacked and formed.
  • the fiber web is formed by the air laid method corresponding to the intermediate fiber layer 323 between the fiber aggregates formed by the card method corresponding to the first and second fiber layers 321 and 322 of the wipes sheet 310. It has a multi-layered structure in which the stacked fiber assembly is interposed.
  • the fiber web is preferably pre-watered prior to the water jet process to form the fiber entanglement and concave portions corresponding to the concave lines 318 forming the graphic area 340.
  • the fiber gap is filled with water and the fiber density is increased.
  • the fiber jet process it is possible to prevent the fibers from being scattered by the water flow and the fiber density of the fiber web becoming nonuniform, thereby preventing the formation of the fiber web from being disturbed.
  • water may be sprayed by a spray without requiring water pressure to move the fibers.
  • FIG. 20 is a perspective view of a water jet process 600 for forming a recessed portion 622 in the fiber web 601 corresponding to the recessed line 318 of the graphic area 340.
  • the water jet process 600 includes a suction drum 606 for holding the fiber web transported in the machine direction MD on the outer circumferential surface, and a nozzle plate 607 for jetting water to the fiber web located on the outer circumferential surface of the suction drum 606.
  • the fiber web 601 has a first surface 601 a facing the nozzle plate 607 on the outer peripheral surface of the suction drum 606 and a second surface 601 b facing the outer peripheral surface of the suction drum 606 located on the opposite side.
  • the suction drum 606 includes a shaped support 606 a having linear protrusions 620.
  • the outer peripheral surface of the shaping support 606a is in the form of a mesh having a plurality of suction pipes 621, and while rotating the shaping support 606a around the axis K601, the fiber web 601 is attracted to the shaping support 606a and the outer periphery is drawn. While being held on the surface, it is transported to a dehydrator (not shown) via a downstream transport means (not shown).
  • the nozzle plate 607 jets water toward the first surface 601 a side of the fiber web 601 held on the outer peripheral surface of the suction drum 606 to intertwine fibers and is located on the outer peripheral surface of the shaping support 606 a
  • a concavo-convex pattern is provided on the second surface 601b side of the fiber web 601.
  • the linear convex portion 620 is formed integrally or separately with the outer peripheral surface of the shaped support 606 a.
  • the fiber web 601 further transported in the machine direction MD by the transport belt of the dehydrator is transported to the dryer when it is used as a wipe sheet used in a dry state, while it is in a wet state
  • the wipes sheet 310 used in the above it is conveyed to the liquid supply means for impregnating the liquid containing medicines and perfumes with or without a dryer.
  • the fiber webs After the fiber webs have been subjected to these steps, they are cut into appropriate sizes by a cutting means.
  • a part of the heat fusible fibers constituting the fiber web 601 is heat-fused to improve the sheet strength.
  • a plurality of nozzles arranged in the cross direction CD jets water to the first surface 601a of the fiber web 601 held on the outer peripheral surface of the shaped support 606a of the suction drum 606.
  • the fiber web 601 is preliminarily entangled with fibers in a suction drum (not shown) located upstream of the suction drum 606 so that the fibers are entangled by a weak force so that the entire surface is flat.
  • the fiber web 601 is pressed against the linear convex portion 620 located on the outer peripheral surface of the shaping support 606 a by the water flow jetted from the nozzle plate 607 while being sucked from the pipe 621.
  • FIG. 21 (a) is an enlarged view of the fiber web 601 on the linear convex portion 620 before the water flow is jetted in the suction drum 606, and FIG. 21 (b) is after the fluid is jetted in the suction drum.
  • FIG. 21 (b) is after the fluid is jetted in the suction drum.
  • the linear convex portions 620 have first, second and third linear convex portions 620a, 620b, having different designs corresponding to the first and second pattern portions 341 and 342 of the wipes sheet 310 and the sub pattern 344. It has 620c. Since the linear convex portion 620 is a portion protruding from the outer peripheral surface of the shaping support 606 a, various shapes such as a character and a company logo are adopted for shaping on the fiber web 601 in addition to the illustrated mode. be able to.
  • the linear convex portion 620 is disposed on the entire outer periphery of the shaped support 606 a, and all wipes sheets 310 manufactured are also arranged such that a graphic portion having at least one independent and closed design is disposed. It has a pattern.
  • the height of the linear convex portion 620 is designed to change the line width and height in the extending direction according to the shaping design.
  • the fibers move to the periphery by the water flow and the suction pipe 621 does not suck the fiber.
  • the fiber density is lower than that of the area.
  • the fibers moved from above the linear convex portion 620 are accumulated and the fiber density is relatively high.
  • the second portion 632 extending further outward from the first portion 631 has a higher fiber density than the thin portion 624 and a lower fiber density than the first portion 631.
  • the pulp fibers located in the intermediate fiber layer of the fiber web 601 are shorter in fiber length than the heat-fusion fibers located in the upper and lower layers, and are entangled with each other in the fiber assembly and are moved by water flow It is easy to do. Therefore, in the low density region including the thin portion 624 located on the linear convex portion 620, the pulp fiber moves so as to be blown to the periphery, and the mass of the pulp fiber is compared with the first and second portions 631, 632 It is lower.
  • the water jet process can form a design pattern formed by fiber entanglement on the fiber web 601, and the concave portion 622, the first portion 631 and the second portion 632 of the fiber web 601 are respectively wipes It corresponds to the concave line 318 (low density area 351), the high density area 352 and the medium density area 353 of the sheet 310.
  • the fibers are reoriented by the linear convex portions 620 disposed on the outer peripheral surface of the shaped support 606 a of the suction drum 606, and the concave portions 622 are formed on the second surface 601 b side of the fiber web 601.
  • relatively thin apertures are not formed in the thin portion 624 located in the linear convex portion 620 in the extending direction, and the thin portion 624 is surrounded by the linear convex portion 620 in the manufacturing process. The part never falls off.
  • the spunlace manufacturing method by hydroentanglement was illustrated, but air, water vapor, etc. besides water can be used as long as the concave line 318 can be formed by fiber interlacing by fluid treatment. It is also possible to employ a fluid-based manufacturing method.
  • FIG. 22 is a plan view similar to FIG. 18 showing an example of a modified wipes sheet 310 according to the third invention.
  • the width dimension of the concave line 318 constituting the sub-pattern 344 is larger than the width dimension of the concave line 318 constituting the first symbol portion 341 and the second symbol portion 342.
  • FIG. 23 is a top view similar to FIG. 18 in an example of the modification of the wipes sheet 310 of 3rd invention.
  • wipes sheet 310 does not have sub-pattern 344.
  • the concave line 318 of the outline 341A of the first design 341 has a narrow portion 349a and a wide portion 349b which differ in width with respect to the extending direction in one continuous line in the extending direction.
  • the design of the wipes sheet 310 can be improved.
  • the outline 341A of the first symbol 341 has been described as having the narrow portion 349a and the wide portion 349b.
  • the present invention is not limited thereto, and the symbol 341B of the first symbol 341 may have a narrow portion and a wide portion, and the outline 342A of the second symbol 342 has a narrow portion and a wide portion. It may have a portion, and the pattern 342B of the second pattern portion 342 may have a narrow portion and a wide portion.
  • the fiber non-woven fabric sheet according to the present invention is not limited to wipes, and sanitary napkins and disposable diapers It can also be used as a component of hygiene products such as breast milk pads.
  • the first symbol part 341 and the second symbol part 342 of the symbol region 340 have independent and closed outlines 341A, 342A formed by the concave lines 318 due to fiber interlacing, the design is totally flexible as a whole. It can be suitably used as a sheet material in contact with the skin of hygiene products.
  • the components constituting the wipes sheet 310 according to the third invention are generally used in this type of field, in addition to the materials described herein, unless otherwise specified. And various known materials can be used without limitation. Also, as used herein and in the appended claims, the terms “first”, “second”, “third” and “fourth” merely distinguish similar elements, positions, etc. It is used for
  • Fiber non-woven sheet (wipe sheet) 111 first surface 112 second surface 118 concave line 140 symbol area 141 first symbol part (symbol part) 142 second symbol part (symbol part) 141A, 142A Outline 141B, 142B Design 161 Wide portion 161 Narrow portion 170 Slit 210 Fiber non-woven sheet (Wipes sheet) 211 first surface 212 second surface 218 concave line 240 symbol area 241 first symbol section 242 second symbol section 241A, 242A outline 241B, 242B symbol 261 wide portion 262 narrow portion 270 slit 310 fiber nonwoven fabric sheet (wipe sheet ) 311 first surface 312 second surface 318 concave line 318 concave line (first line) forming the outline 318 Concave line (second line) to form a pattern 341 1st symbol part (symbol part) 342 2nd symbol (symbol) 344 Sub pattern 349a Narrow part 349b Wide part P 1st

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
PCT/JP2018/047358 2017-12-28 2018-12-21 繊維不織布シート WO2019131550A1 (ja)

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CN201880073109.4A CN111328356B (zh) 2017-12-28 2018-12-21 纤维无纺布片
CN202210616549.8A CN114960031A (zh) 2017-12-28 2018-12-21 纤维无纺布片

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JPH04327255A (ja) * 1991-04-26 1992-11-16 Nippon Filcon Co Ltd 突起を設けた不織布製造用ベルト及び模様を形成した不織布の製造方法
JP2002069814A (ja) * 2000-08-30 2002-03-08 Daiwabo Co Ltd 刺繍入り不織布形成用支持体及びそれを用いた刺繍模様付き不織布の製造方法
JP2006320728A (ja) * 1999-12-10 2006-11-30 Procter & Gamble Co 巨視的三次元孔なしクリーニングシート、並びにそれを用いたクリーニング用具、クリーニング方法及び製造物品
JP2010168676A (ja) * 2009-01-21 2010-08-05 Kakui Kk 模様付き不織布シートの製造方法及び不織布シートの模様形成装置
JP2017031518A (ja) * 2015-07-30 2017-02-09 ユニチカ株式会社 水流交絡不織布の製造方法

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WO2004029349A1 (ja) * 2002-09-26 2004-04-08 Asahi Kasei Fibers Corporation スパンボンド系不織布及び衛生材料
CN101542032B (zh) * 2006-06-23 2011-08-24 尤妮佳股份有限公司 无纺布
JP5525179B2 (ja) 2008-04-28 2014-06-18 ダイワボウホールディングス株式会社 不織布およびその製造方法、並びに拭き取り材
JP5506520B2 (ja) * 2010-04-16 2014-05-28 ユニ・チャーム株式会社 伸長性繊維と伸縮性繊維とを含む、凹凸を有する不織布、及び当該不織布を製造する方法
WO2012073544A1 (ja) * 2010-12-02 2012-06-07 ダイワボウホールディングス株式会社 不織布及びその製造方法、並びに拭き取り材
JP6047428B2 (ja) * 2012-06-07 2016-12-21 花王株式会社 不織布

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Publication number Priority date Publication date Assignee Title
JPH04327255A (ja) * 1991-04-26 1992-11-16 Nippon Filcon Co Ltd 突起を設けた不織布製造用ベルト及び模様を形成した不織布の製造方法
JP2006320728A (ja) * 1999-12-10 2006-11-30 Procter & Gamble Co 巨視的三次元孔なしクリーニングシート、並びにそれを用いたクリーニング用具、クリーニング方法及び製造物品
JP2002069814A (ja) * 2000-08-30 2002-03-08 Daiwabo Co Ltd 刺繍入り不織布形成用支持体及びそれを用いた刺繍模様付き不織布の製造方法
JP2010168676A (ja) * 2009-01-21 2010-08-05 Kakui Kk 模様付き不織布シートの製造方法及び不織布シートの模様形成装置
JP2017031518A (ja) * 2015-07-30 2017-02-09 ユニチカ株式会社 水流交絡不織布の製造方法

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CN111328356A (zh) 2020-06-23
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KR20200096205A (ko) 2020-08-11
KR102539621B1 (ko) 2023-06-02

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