EP1279348A1 - Vliesstoff zur verwndung als schlaufentiel von haftverschluss und herstellungsverfahen - Google Patents

Vliesstoff zur verwndung als schlaufentiel von haftverschluss und herstellungsverfahen Download PDF

Info

Publication number
EP1279348A1
EP1279348A1 EP00970118A EP00970118A EP1279348A1 EP 1279348 A1 EP1279348 A1 EP 1279348A1 EP 00970118 A EP00970118 A EP 00970118A EP 00970118 A EP00970118 A EP 00970118A EP 1279348 A1 EP1279348 A1 EP 1279348A1
Authority
EP
European Patent Office
Prior art keywords
nonwoven fabric
thermoplastic filaments
loop
thermally
press
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP00970118A
Other languages
English (en)
French (fr)
Inventor
Tohru Takahashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unitika Ltd
Original Assignee
Unitika Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Unitika Ltd filed Critical Unitika Ltd
Publication of EP1279348A1 publication Critical patent/EP1279348A1/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B18/00—Fasteners of the touch-and-close type; Making such fasteners
    • A44B18/0003—Fastener constructions
    • A44B18/0011—Female or loop elements
    • 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
    • D04H1/48—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 in combination with at least one other method of consolidation
    • D04H1/485—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 in combination with at least one other method of consolidation in combination with weld-bonding
    • 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
    • D04H1/498—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 entanglement of layered webs
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/559—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving the fibres being within layered webs
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H11/00—Non-woven pile fabrics
    • D04H11/08—Non-woven pile fabrics formed by creation of a pile on at least one surface of a non-woven fabric without addition of pile-forming material, e.g. by needling, by differential shrinking

Definitions

  • the present invention relates to a simple and easy nonwoven fabric for loop material of hook-and-loop fastener used in disposable goods such as disposable diapers, operating gowns, etc.
  • a hook-and-loop fastener is composed of a loop material having loop-shaped or arch-shaped engaged members and a hook material having mushroom-shaped or hook-shaped protrusions for engaging with the mentioned engaged members of the loop material.
  • Such hook-and-loop fastener is employed in varieties of uses such as clothing, daily necessaries, interior materials, and industrial materials.
  • hook-and loop fasteners of necessary and sufficient characteristics as fasteners have been increasingly employed for disposable goods because of their simple and easy way of use. It is sufficient for the hook-and loop fasteners used in disposable goods to have durability and peeling strength enough for only joining several times.
  • the loop material of hook-and-loop fastener it is a recent trend that a fabric forming a main body of an operating gown, a diaper cover, a diaper, or the like is used to serve as the loop material of hook-and loop fastener as it is.
  • a loop material serving not only as a loop material of hook-and-loop fastener but also as fabric has been increasingly adopted.
  • loop materials of hook-and loop fastener have been heretofore proposed as such a loop material. That is, ( i ) a filamentous nonwoven fabric having wrinkle portions is employed as the loop material of hook-and-loop fastener in which the wrinkle portions serve as engaged members (The Japanese Patent Publication (unexamined) No. 6-33359), ( ii ) a nonwoven fabric composed of a large number of loops on one side which are formed by needle punching a fibrouse web and of fixed filaments or fibers on the other side which are fixed together with an adhesive material is employed as the loop material of hook-and-loop fastener, and the loops serve as engaged members (The Japanese Patent Publication (unexamined) No.
  • a nonwoven fabric composed of a large number of loops on one side which are formed by needle punching a fiberous web and of fixed filaments or fibers on the other side which are fixed together by heat-bonding is employed as the loop material of hook-and-loop fastener, and the loops serve as engaged members (The Japanese Patent Publication (unexamined) No. 9-317).
  • the loop material with the wrinkle portions serving as the engaged members does not perform sufficient peeling strength when it is engaged with the hook material.
  • the loops serve as the engaged members and the loop material has sufficient peeling strength when the loop material is joined to the hook material.
  • the filaments or fibers on the non-loop side are fixed together with an adhesive material or fixed by heat-bonding, and therefore the loop material of hook-and-loop fastener keeps its dimensional stability even after the loop material is repeatedly used several times.
  • the loop material often directly touches the skin, and the mentioned fixation to the non-loop side gives rise to following problems.
  • the present invention basically accomplishes the foregoing object as a result of successfully combining a nonwoven fabric base in which heat-bonded portions formed by heat-bonding filaments composing the nonwoven fabric together are dispersed and a filamentous web in which filaments are not fixed to each other.
  • the invention basically relates to a nonwoven fabric for loop material of hook-and-loop fastener and a manufacturing process thereof, characterized in that the nonwoven fabric for loop material of hook-and-loop fastener is formed by laminating and joining together a nonwoven fabric base composed of thermoplastic filaments A, in which heat-bonded portions formed by heat-bonding the thermoplastic filaments A together by softening or melting the thermoplastic filaments A are dispersed, and a filamentous web composed of thermoplastic filaments B, the nonwoven fabric for loop material of hook-and-loop fastener has a loop side in which some parts of the thermoplastic filaments B passes through the nonwoven fabric base and form loops on a surface of the nonwoven fabric base, the thermoplastic filaments A and the thermoplastic filaments B are entangled with each other, and the thermoplastic filaments B are not substantially fixed to each other on a non-loop side opposite to the loop side.
  • the nonwoven fabric for loop material of hook-and-loop fastener is formed by laminating
  • thermoplastic filaments A polyester filaments, polyamide filaments, polyolefin filaments, or the like are used as the thermoplastic filaments A. It is preferred to use a sheath-core type conjugate filament composed of a high melting point core component and a low melting point sheath component. In this case, it is preferred to use polyethylene terephthalate as the core component and use polyester, polypropylene, polyethylene, or the like whose melting point is lower than that of the core component as the sheath component.
  • thermoplastic filaments A are heat-bonded together by softening or melting themselves.
  • each of the thermoplastic filaments A is the sheath-core type conjugate filament, they are heat-bonded by softening or melting each sheath component.
  • each of the thermoplastic filaments A is single component type filament, they are heat-bonded by softening or melting the whole of the part of each filament.
  • the former is more preferable because the core component maintains the filament configuration even after the heat bonding and the nonwoven fabric base itself maintains its high tensile strength.
  • the heat-bonded portions are dispersed in the nonwoven fabric base in such a manner as shown in Fig. 1, for example. In Fig.
  • thermoplastic filaments A are not heat-bonded outside the heat-bonded portions, and the thermoplastic filaments A can move freely to a certain extent among the heat-bonded portions where the filaments A are constrained.
  • Size of each individual heat-bonded portion is preferably in the range of 0.04 to 2mm 2 , and total size rate of the heat-bonded portions is preferably in the range of 2 to 50% of the surface size of the nonwoven fabric base. If size of each heat-bonded portion is smaller than 0.04mm 2 and the gross size rate is less than 2%, the technical advantage of having the heat-bonded portions is not sufficiently performed, and consequently, the loops get out easily and fluffing takes place easily after only several times of joining with a hook material.
  • each heat-bonded portion is larger than 2mm 2 and the gross size rate is more than 50%, strength of the nonwoven fabric base is unnecessarily increased, and consequently, the obtained loop material may be sufficient in dimensional stability, but the loop material tends to be decreased in softness.
  • Weight of nonwoven fabric base is preferably in the range of 10 to 130g/m 2 . If weight of the nonwoven fabric base is less than 10g/m 2 , amount of filaments per area tends to be decreased, and the technical advantage of constraining the loops having passed through the nonwoven fabric base tends to be reduced. Moreover, the loop material of hook-and-loop fastener tends to be decreased in dimensional stability. On the other hand, if weight of the nonwoven fabric base is more than 130g/m 2 , weight of the whole nonwoven fabric for loop material of hook-and-loop fastener is unavoidably increased, and the nonwoven fabric tends to be stiff and hard, and to increase in cost.
  • the nonwoven fabric base is preferably not more than 400 ⁇ m in thickness. If the nonwoven fabric base is more than 400 ⁇ m in thickness, the loops passing through the nonwoven fabric base and formed on the surface of the nonwoven fabric base stand relatively low in height. Thus, the nonwoven fabric tends to have less strength of joining with the hook material.
  • thermoplastic filaments A composing the nonwoven fabric base Any fineness of each filaments can be used as the thermoplastic filaments A composing the nonwoven fabric base. but it is preferred to use each filament of 1 to 15 dtex in general. It is more preferred to use each filament of fineness smaller than the fineness of the thermoplastic filaments B composing the filamentous web. This makes it easier to obtain a dense nonwoven fabric base, and the loops passing through the nonwoven fabric base are held more effectively.
  • thermoplastic filaments B forms the filamentous web, and the filamentous web does not have any heat-bonded portion like those in the nonwoven fabric base.
  • polyester filaments, polyamide filaments, polyolefin filaments or the like are used as the thermoplastic filaments B.
  • a sheath-core type conjugate filament composed of a high melting point core component and a low melting point sheath component.
  • polyethylene terephthalate is preferred as the core component and use low-melting-point polyester, polypropylene, polyethylene, or the like as the sheath component.
  • thermoplastic filaments B are soluble with the thermoplastic filaments A, they do not become slippery with each other, and the thermoplastic filaments B passing through the nonwoven fabric base are effectively constrained by the thermoplastic filaments A in the nonwoven fabric base, and consequently, it is possible to prevent the loops from getting out.
  • Each fineness of the thermoplastic filaments B is preferably in the range of 1 to 15 dtex , and more preferably in the range of 5 to 10 dtex. If the each fineness is less than 5 dtex, the thermoplastic filaments B forming the loops to be engaged with the hook material is excessively weak, and consequently, the thermoplastic filaments B forming the loops are easily cut at the time of peeling the hook material from the loop material after joining the hook material with the loop material, and durability and peeling strength of the loop material tends to be decreased when the loop material is repeatedly used.
  • thermoplastic filaments B When forming the loops by needle punching, the thermoplastic filaments B easily break due to friction generated by a punching needle passing through the thermoplastic filaments B, and this makes it difficult to form the loops having a sufficient peeling strength serving as the loop material. On the other hand, if each fineness is more than 15 dtex, it is certain that the thermoplastic filaments B have a sufficient strength, but stiffness of the loops is increased. This brings about a phenomenon called joining spots in which the loop material is not easily joined with the hook material and may not have any uniform peeling strength.
  • Weight of the filamentous web is preferably not less than 10g/m 2 , and more preferably not less than 20g/m 2 . If the filamentous web is less than 10g/m 2 , number of the loops engaged with the hook member is relatively decreased. Upper limit of the weight of the filamentous web can be freely selected, but it is preferred to select a filamentous web of about 100g/m 2 in view of cost and softness.
  • thermoplastic filaments B in the filamentous web pass through the nonwoven fabric base and forms the loops on the surface of the nonwoven fabric base as schematically shown in Fig. 2.
  • the thermoplastic filaments B in the filamentous web 3 pass through the nonwoven fabric base 1 and form the loops 4 on the surface of the nonwoven fabric base 1 (note that the loops 4 are exaggeratedly illustrated larger than the actual loops).
  • More parts of the thermoplastic filaments B pass relatively from outside of the heat-bonded portions 2 through the nonwoven fabric base 1, and the thermoplastic filaments B hardly pass through the heat-bonded portions 2. This is because the thermoplastic filaments A in the nonwoven fabric base 1 can move freely to a certain extent in the areas other than the heat-bonded portions 2.
  • thermoplastic filaments B forms the loops, and the rest of them are entangled with the thermoplastic filaments A in the nonwoven fabric base. This entanglement with the thermoplastic filaments A also takes place in the areas other than the heat-bonded portions 2 so that the thermoplastic filaments A may move freely to a certain extent. As a result of the entanglement of the thermoplastic filaments B with the thermoplastic filaments A, the nonwoven fabric base 1 and the filamentous web 3 are joined together more tightly.
  • the side where the loops 4 are formed is called the loop side, and the opposite side of the loop side. i.e., the filamentous web side, is called the non-loop side, where the loops are not formed.
  • the non-loop side is composed of the thermoplastic filaments B forming the filamentous web, and the thermoplastic filaments B are not substantially fixed to each other on this non-loop side.
  • the thermoplastic filaments B are not fixed together with any adhesive agent nor fixed to each other by softening or melting the thermoplastic filaments B themselves. It is not preferred to fix the thermoplastic filaments B to each other on the non-loop side because this makes the loop material of hook-and-loop fastener stiff and hard and deteriorates in air permeability.
  • the nonwoven fabric base in which the heat-bonded portions formed by heat-bonding the thermoplastic filaments A together are dispersed. is used, and some parts of the thermoplastic filaments B in the filamentous web pass through the nonwoven fabric base mainly from the areas other than the heat-bonded portions, thereby forming the loops. Roots of these loops are held between the thermoplastic filaments A in the nonwoven fabric base, and these thermoplastic filaments A are secured at least in the heat-bonded portions. Therefore, the loops are secured to a certain extent, and are quite sufficient to serve as the nonwoven fabric for loop material of hook-and-loop fastener used in disposable goods.
  • the nonwoven fabric base has the heat-bonded portions, and therefore the tensile strength is higher than that of any base without heat-bonded portions.
  • the nonwoven fabric does not bring any stiff and hard touch, and air permeability thereof is good. It is therefore desirable to use this nonwoven fabric as a nonwoven fabric serving not only as fabric but also as the loop material of hook-and-loop fastener.
  • thermally-press-joined areas including continouse area
  • the nonwoven fabric base and the filamentous web are heat-pressed for the purpose of further securing the loops and increasing the strength in the lamination and integration between the nonwoven fabric base and the filamentous web.
  • the thermally-press-joined areas is obtained by pressing and heating the nonwoven fabric base and the filamentous web from the loop side and the non-loop side, softening or melting the thermoplastic filaments A and the thermoplastic filaments B, and then hardening them.
  • Fig. 3 is a schematic side view of the nonwoven fabric for loop material of hook-and-loop fastener provided with the thermally-press-joined area.
  • Numeral 5 indicates the thermally-press-joined area, and numeral 6 is the area not thermally-press-joined.
  • the loops 4 do not exist in the thermally-press-joined area 5, but the loops 4 are formed in the area 6 not thermally-press-joined.
  • the loops 4 are illustrated larger than the actual loops.
  • each area not thermally-press-joined is surrounded by the thermally-press-joined areas (including continuous ares) and the nonwoven fabric has plural areas not thermally-press-joined. This is because the loops in each area not thermally-press-joined do not easily get out in the case that each area not thermally-press-joined is surrounded with the thermally-press-joined areas. This is also because even if the loops get out and fluff is raised, thereby the thermoplastic filaments B being disengaged, the thermally-press-joined areas prevent the thermoplastic filaments B from getting out. Furthermore, it is preferred to provide not only one but plural areas not thermally-press-joined that are divided into small partitions in order to increase the mentioned advantage all the more.
  • each size of not thermally-press-joined areas is larger than 5mm 2 , and more preferably in the range of about 5 to 350mm 2 . If each size of not thermally-press-joined is less than 5mm 2 , each loop side is too small to achieve sufficient engagement with the hook material. On the other hand, if each size of not thermally-press-joined areas is more than 350mm 2 , the loops tend to get out easily. It is preferred that the gross size of not thermally-press-joined areas is in the range of 40 to 90% of the whole surface size.
  • the gross size occupied by the areas not thermally-press-joined is less than 40%, the areas of the loop side are small, and this decreases the portion useful for the engagement with the hook material and any sufficient engagement tends to be difficult.
  • the gross size occupied by the areas not thermally-press-joined is more than 90%, the thermally-press-joined areas are relatively small, and the thermoplastic filaments B are not sufficiently secured, thereby the loops tend to get out easily.
  • Figs. 4 to 7 show an example in which the thermally-press-joined areas are honeycomb-shaped continuous area.
  • Fig. 5 shows an example in which the thermally-press-joinedareasare lattice-shaped continuous area.
  • Fig. 6 shows an example in which the thermally-press-joined areas are texture-shaped with vertical lines and horizontal lines arranged alternately.
  • Fig. 7 shows an example in which the quadrilateral thermally-press-joined areas are arranged zigzag.
  • Figs. 4 shows an example in which the thermally-press-joined areas are honeycomb-shaped continuous area.
  • Fig. 5 shows an example in which the thermally-press-joinedareasare lattice-shaped continuous area.
  • Fig. 6 shows an example in which the thermally-press-joined areas are texture-shaped with vertical lines and horizontal lines arranged alternately.
  • Fig. 7 shows an example in which the quadrilateral thermally-press-joined areas
  • Fig. 4 and 5 show the examples in which plural areas not thermally-press-joined are surrounded by the continuous thermally-press-joined area
  • Fig. 6 shows an example in which the continuous area not thermally-press-joined is not surrounded by the thermally-press-joined areas
  • Fig. 7 is an example in which each of the thermally-press-joined areas surrounds the each area not thermally-press-joined, and the thermally-press-joined areas are not continuous in this example.
  • the whole nonwoven fabric for loop material of hook-and-loop fastener is impregnated with any binder resin for the purpose of improving the dimensional stability and preventing the loops from getting out.
  • the whole nonwoven fabric is impregnated with a binder resin to such an extent that the nonwoven fabric for loop material is not hard to the touch and the air permeability of the nonwoven fabric for loop material is not negatively affected. Therefore, the binder resin is not selectively applied to the non-loop side but is applied to the whole nonwoven fabric.
  • the binder resin it is possible to use any generally known synthetic elastic resin such as copolymer prepared by combining at least two kinds of monomers such as methyl acrylate, ethyl acrylate. butyl acrylate, methyl methacrylate, ethyl methacrylate, butyl methacrylate, acrylo-nitrile, and styrene and copolymerizing them at a desired mole ratio or a cross linked binder resin in which the copolymer is cross linked by a cross linking agent.
  • the nonwoven fabric for loop material is used in disposable goods that directly touch the skin such as diapers, and therefore it is necessary to choose the resin depending on the way of use.
  • amount of applying the binder resin is in the range of 1 to 15% by weight with respect to the mass of the nonwoven fabric for loop material, and more preferably in the range of 1 to 10% by weight.
  • the binder resin is used for the purpose of improving the dimensional stability of the nonwoven fabric for loop material and preventing the loops from getting out, and accordingly this purpose is hardly attained if the amount of applying the binder resin is less than 1% by weight.
  • the amount of applying the binder resin is more than 15% by weight, the nonwoven fabric for loop material becomes stiff and hard, and the air permeability is lowered. Such a nonwoven fabric is not desirable for loop material.
  • weight of the nonwoven fabric for loop material is in the range of 20 to 150g/m 2 . If weight of the nonwoven fabric for loop material is less than 20g/m 2 , it is difficult to obtain any sufficient strength used as fabric, and the nonwoven fabric tends to easily deform when the nonwoven fabric is repeatedly joined with the hook material. On the other hand, if weight of the nonwoven fabric for loop material is more than 150g/m 2 . the air permeability is lowered and the cost is increased, and it difficult to use such a nonwoven fabric for loop material of hook-and-loop fastener for disposable goods.
  • air permeability of the nonwoven fabric for loop material of hook-and-loop fastener according to the invention is preferably not less than 80cc/sec ⁇ cm 2 and, more preferably, in the range of 80 to 250 cc/sec ⁇ cm 2 . If a nonwoven fabric for loop material, whose air permeability is less than 80 cc/sec ⁇ cm 2 , is used for disposable goods that directly touch the skin, the nonwoven fabric brings about stuffiness and inhibits sweat to evaporate, which results in any skin trouble.
  • Described hereinafter is a preferable manufacturing process of the nonwoven fabric for loop material of hook-and-loop fastener according to the invention.
  • To manufacture the nonwoven fabric for loop material of hook-and-loop fastener first a nonwoven fabric base and a filamentous web are prepared.
  • the nonwoven fabric base can be prepared through any conventionally known method. That is, a nonwoven fabric, in which heat-bonded portions are dispersed, is prepared by accumulating thermoplastic filaments A and partially heat-bonding the thermoplastic filaments A, and this nonwoven fabric is used as the nonwoven fabric base. For example, if spunbond process is adopted, a nonwoven fabric base is obtained through the following process. First, while drawing the thermoplastic filaments A by melt spinning method, the thermoplastic filaments A are accumulated on a moving collecting conveyor, thus a filamentous nonwoven web is obtained.
  • thermoplastic polymer is molten and spun out of a normal spinneret, the spun filaments are qrenched, drafted and attenuated by an air sucker, and opened by a publicly known method, and then the filaments are accumulated on a moving accumulating apparatus as a filamentous nonwoven web.
  • the air sucker draws the filaments at a spinning speed in the range of, for example, about 3000 to 6000m/min. If the spinning speed is less than 3000m/min., molecular orientation of each thermoplastic filament A does not sufficiently grow, and therefore the obtained thermoplastic filaments A tend to have insufficient tensile strength.
  • the obtained nonwoven fabric for loop material tends to easily stretch when it is peeled from the hook material and is deteriorated in dimensional stability.
  • the spinning speed is more than 6000m/min. each thermoplastic filament A tends to cut, and spinning efficiency at the time of melting and spinning the filaments is decreased.
  • the obtained filamentous nonwoven web is provided with partially heat-bonded portions which are dispersed, and thus a nonwoven fabric base is obtained.
  • the method for providing the heat-bonded portions there are following several methods: a method of heat-bonding the filaments A together by passing the filamentous nonwoven web through between a pair of heated engraved rollers or between a heated engraved roller and a flat roller, thereby softening or melting the thermoplastic filaments A at the portions coming in contact with the non-engraved parts of the engraved roller; a method of heat-bonding the filaments A together by putting a plate partially provided with holes or a net on the filamentous nonwoven web, applying a hot air through the plate or net, and softening or melting the thermoplastic filaments A at the portions to which the hot air is applied; or a method of heat-bonding the filaments A together by passing the filamentous nonwoven web through an ultrasonic bonding apparatus comprising a pair of engraved rollers or an engraved roller and a flat roller and softening or melting the thermoplastic
  • Configuration of each heat-bonded portion dispersed in the nonwoven fabric base is decided depending on figure or size of end face of each non-engraved part of the engraved roller or density of the arranged non-engraved parts, or depending on figure or size of each hole in the plate the net through which hot air passes at the time of applying the hot air treatment. Therefore, as for the configuration of each non-engraved part or that of each hole in the plate or the net, as well as configuration of each heat-bonded portion in the nonwoven fabric base described above, it is preferred that size of the end face of each non-engraved part, size of each hole in the plate or the net is in the range of 0.04 to 2mm 2 .
  • Gross size rate of the end face of each non-engraved part or gross size rate of each hole is preferably in the range of 2 to 50% of whole surface size of the engraved roller (including end faces of the non-engraved parts) or whole surface area of the plate or the net (including the holes).
  • the engraved roller is heated to a temperature lower than the melting point of the thermoplastic polymer composing the thermoplastic filaments A. It is preferred that the temperature is established to be in the range less than the melting point but not less than a temperature which is lower than the melting point by 60°C.
  • the temperature is decided on the basis of the melting point of the low melting point polymer and is preferably established to be in the range from less than the melting point of the low melting point polymer to not less than a temperature which is lower than the melting point by 60°C.
  • the temperature of the heated engraved roller is not lower than the melting point, the softened or molten polymer sticks to the non-engraved parts coming in contact with the thermoplastic filaments A, which brings about decrease in productivity. If the temperature is less than a temperature which is lower than the melting point by 60 °C, the thermoplastic filaments A are not sufficiently heat-bonded depending on linear pressure between the rollers, thus the obtained nonwoven fabric base may be insufficient in mechanical strength.
  • the linear pressure between the rollers can be freely selected depending on the weight of the filamentous nonwoven web to be processed, but is preferably in the range of 98 to 980N/cm.
  • the processing speed depends on the heating temperature and the linear pressure between the rollers, but is preferably in the range of 5 to 50m/min.
  • the processing temperature is established to be not lower than the melting point of the thermoplastic polymer composing the thermoplastic filaments A, and the temperature is preferably in the range from the melting point to a temperature which is higher than the melting point by 20°C.
  • the temperature is decided on the basis of the melting point of the low melting point polymer.
  • the nonwoven fabric base is obtained.
  • the filamentous web is easily prepared just by accumulating the thermoplastic filaments B.
  • the filamentous nonwoven web formed at the time of obtaining the nonwoven fabric base can be used as the filamentous web without any further treatment.
  • the thermoplastic filaments B are used instead of the thermoplastic filaments A at the time of obtaining the nonwoven fabric base, the obtained filamentous nonwoven web itself can be used as the filamentous web as it is.
  • the same filaments are used as the thermoplastic filaments A and the thermoplastic filaments B
  • the filamentous nonwoven web manufactured at the time of obtaining the nonwoven fabric base can be used as the filamentous web without any further treatment.
  • the former does not have any heat-bonded portion where the filaments are heat-bonded together, while the latter has such heat-bonded portions.
  • thermoplastic filaments B in the filamentous web pass through the nonwoven fabric base and form loops on the surface of the nonwoven fabric base. Further, the thermoplastic filaments B are entangled with the thermoplastic filaments A existing among the heat-bonded portions in the nonwoven fabric base, whereby the nonwoven fabric base and the filamentous web are joined together more tightly. A following theory is applied to this process.
  • the thermoplastic filaments B in the filamentous web are merely accumulated, and not fixed.
  • thermoplastic filaments B caught by the punching needles pass through among the heat-bonded portions in the nonwoven fabric base and form loops on the surface of the nonwoven fabric base.
  • the thermoplastic filaments A of the nonwoven fabric base are not easily caught by the punching needles because the thermoplastic filaments A are secured by the heat-bonded portions, and the thermoplastic filaments A do not substantially form loops.
  • thermoplastic filaments A existing among the heat-bonded portions in the nonwoven fabric base are secured by the heat-bonded portions, but in the areas other than the heat-bonded portions the thermoplastic filaments A can move freely to a certain extent. Therefore, the thermoplastic filaments A are entangled with the thermoplastic filaments B by the needle punching, and the nonwoven fabric base and the filamentous web are joined together more tightly.
  • Punching density of the needle punching is selected freely depending on the kind of the punching needles to be used and the needle depth in punching, but is preferably in the range of 20 to 100 times/cm 2 in general. If the punching density is less than 20 times/cm 2 , the loops formed on the nonwoven fabric base are insufficient in number. Moreover, the thermoplastic filaments A are not sufficiently entangled with the thermoplastic filaments B, and the nonwoven fabric base and the filamentous web are joined together less tightly. On the other hand, if the punching density is more than 100 times/cm 2 , the punching needles seriously damage the thermoplastic filaments A and B, and the strength of the filaments themselves tends to be decreased. As a result, mechanical strength of the obtained nonwoven fabric for loop material of hook-and-loop fastener tends to be insufficient.
  • the nonwoven fabric for loop material of hook-and-loop fastener according to the invention.
  • the needle-punched nonwoven fabric for loop material (a precursor in this case) is cause to pass through between a heated engraved roller and a flat roller so that the loop side comes in contact with the engraved roller.
  • the nonwoven fabric for loop material (the precursor) is caused to pass through between a pair of engraved rollers in which at least one of the engraved rollers is heated and non-engraved parts of respective engraved rollers come in contact with each other. In this manner, the areas in contact with the non-engraved parts are turned into a thermally-press-joined areas, and the areas corresponding to engraved parts are turned into areas not thermally-press-joined.
  • thermoplastic filaments B are polyethylene terephthalate (of which melting point is about 255°C)
  • thermoplastic filaments B are polyethylene terephthalate (of which melting point is about 255°C)
  • thermoplastic filaments B are polyethylene (of which melting point is about 130°C)
  • thermoplastic filaments A and B are polyethylene terephthalate (of which melting point is about 255°C)
  • thermoplastic filaments A and B are polyethylene (of which melting point is about 130°C)
  • the heating temperature of the flat roller coming in contact with the filamentous web is established to be low.
  • thermoplastic filaments B in the filamentous web from being heat-bonded by softening or melting due to the heat in the areas not thermally-press-joined and keeping the softness and air permeability of the nonwoven fabric for loop material of hook-and-loop fastener. If the temperature of the flat roller is higher than the mentioned temperature, the thermoplastic filaments ⁇ tend to be easily molten and bonded, and the obtained nonwoven fabric for loop material is stiff and hard to the touch and low in air permeability.
  • height (engraving depth) of the non-engraved parts of the engraved roller is not less than 1mm and, more preferably, not less than 2mm. If the non-engraved parts are less in height, the engraved parts of the engraved roller are easy to come in contact with the loops. Consequently, the loops tend to be molten and stuck or broken due to the heat of the engraved roller, and joining performance with the hook material is decreased. Maximum height of the non-engraved parts is not specifically limited, but is preferably about 3mm considering abrasion of the engraved roller and engraving cost.
  • any configuration can be adopted for the non-engraved parts of the engraved roller.
  • the configuration of the thermally-press-joined areas and the areas not thermally-press-joined may be decided depending on the configuration of the non-engraved parts and so on.
  • each area not thermally-press-joined is surrounded by the thermally-press-joinedarea. Therefore, it is preferred to adopt an engraved roller havingcontinuousnon-engravedpart and engraved part surrounded by the non-engraved part to serve as the engraved roller.
  • the engraved roller has plural engraved parts.
  • the size of each engraved part is preferably not smaller than 5mm 2 , and the gross size of the engraved parts is preferably in the range of 40 to 90% of the whole surface size of the engraved roller (including the non-engraved parts).
  • a process of applying a binder resin in the final step for the purpose of improving the dimensional stability of the obtained nonwoven fabric for loop material or preventing the loops from getting out. For example, by dipping the nonwoven fabric for loop material in a binder resin solution or by spraying the binder resin solution on the nonwoven fabric for loop material, then drying the nonwoven fabric, it is possible to obtain a nonwoven fabric for loop material to which the binder resin is entirely applied.
  • FIG. 8 An example of the manufacturing process of the nonwoven fabric for loop material of hook-and-loop fastener according to the invention is illustrated in Fig. 8.
  • a filamentous web 3 is laminated on a nonwoven fabric base 1, and punching needles 7 are caused to pass through the laminate from the filamentous web 3 side to the nonwoven fabric base 1 side by means of a needle punching machine provided with the punching needles 7. In this manner, the loops are formed on the surface of the nonwoven fabric base 1. Thereafter, the laminate is caused to pass through between the heated engraved roller 8 and the flat roller 9.
  • An object of the present invention is to provide a nonwoven fabric for loop material of hook-and-loop fastener having dimensional stability and joining strength necessary for use in disposable goods and capable of being used not only as a loop material but also as a fabric.
  • the foregoing object can be accomplished, without using any nonwoven fabric base, by establishing a specific relation between the thermally-press-bonded area and the areas not thermally-press-bonded. That is, by providing plural areas not thermally-press-bonded and thermally-press-bonded area that surrounds each individual area not thermally-press-bonded and are continuous as a whole, it is possible to obtain the nonwoven fabric for loop material of hook-and-loop fastener having desired dimensional stability and peeling strength without any nonwoven fabric base.
  • Such a nonwoven fabric for loop material is composed of the thermoplastic filaments B, and the thermoplastic filaments B are entangled with each other.
  • the nonwoven fabric for loop material has the plural areas not thermally-press-bonded, where the thermoplastic filaments B are not heat-bonded together, and the continuous thermally-press-bonded area, where the thermoplastic filaments B are heat-bonded together, surrounding each of the areas not thermally-press-bonded.
  • Surface of the reas not thermally-press-bonded serves as the loop side having loops composed of the thermoplastic filaments B, and the thermoplastic filaments B are not substantially fixed to each other on the non-loop side opposite to the loop side.
  • This nonwoven fabric for loop material is a nonwoven fabric excluding the nonwoven fabric base from the mentioned nonwoven fabric for loop material.
  • the thermally-press-bondedarea is arranged to have a continuous configuration surrounding the areas not thermally-press-bonded.
  • Fig. 4 or Fig. 5 Other particulars are the same as those in the foregoing nonwoven fabric for loop material of hook-and-loop fastener.
  • Fig. 9 shows an example of this nonwoven fabric for loop material, and in which numeral 5 is the thermally-press-bonded area, and numeral 6 is the area not thermally-press-bonded.
  • the loops 4 are formed on the surface of the area 6 not thermally-press-bonded, and the surface serves as the loop side.
  • the manufacturing process of this nonwoven fabric for loop material is a process for excluding the nonwoven fabric base from the foregoing nonwoven fabric for loop material where the nonwoven fabric base is used. Furthermore, an engraved roller having plural engraved parts and a continuous non-engraved part surrounding the engraved parts is used as the heated engraved roller. Other particulars are the same as those in the foregoing manufacturing process of the nonwoven fabric for loop material. However, since any nonwoven fabric base is not used, it is preferred that weight of the filamentous web is not less than 20g/m 2 and, more preferably, in the range of 20 to 150 g/m 2 .
  • Polyethylene terephthalate whose melting point is 255°C was molten at 285°C and spun out of a spinneret. An air sucker drew the polyethylene terephthalate at a spinning speed of 5000m/min.
  • the drawn polyethylene terephthalate filaments B were accumulated on a collecting conveyor, and a filamentous web of 35g/m 2 in weight was obtained. Each of the polyethylene terephthalate filaments B was 3.3 dtex in fineness.
  • the foregoing filamentous web was caused to pass through between an engraved roller heated to 230°C and a flat roller of normal temperature, thus a nonwoven fabric base was obtained.
  • the nonwoven fabric base heat-bonded portions were dispersed, and each individual heat-bonded portion was 0.4mm 2 in size.
  • the gross size of the heat-bonded portions was 10% of the surface size of the nonwoven fabric base, and the nonwoven fabric base was 250 ⁇ m in thickness.
  • the polyethylene terephthalate filaments A forming the nonwoven fabric base are the same material as the polyethylene terephthalate filaments B.
  • the nonwoven fabric base was 35g/m 2 in weight and 250 ⁇ m in thickness.
  • the filamentous web and the nonwoven fabric base were laminated and needle-punched by a needle-punching machine (needles: crown barb needles produced by Foster,).
  • the needle punching was performed under the conditions that the punching needles were caused to pass through the laminate from the filamentous web side. Punching density was 50 times/cm 2 , and needle depth in punching was 9mm.
  • the needle-punched laminate was caused to pass through between an engraved roller heated to 230°C and a flat roller heated to 200°C.
  • the non-engraved part of the engraved roller is honeycomb-shaped as shown in Fig. 4 so that the honeycomb-shaped thermally-press-joined area may be formed, and the non-engraved part was 1.5mm in height.
  • Polyethylene terephthalate whose melting point is 255°C was used as a core component, and high density poly ethylene whose melting point is 125°C was used as a sheath component. They were molten and spun out of a conjugate spinneret, and were drawn by an air sucker.
  • the drawn sheath-core type conjugate filaments B conjugate ratio of the core and the sheath was 1/1 in ratio by mass
  • Each of the sheath-core type conjugate filaments B was 4.4 dtex in fineness.
  • a filamentous web was obtained by the method used in Example 2 except for using sheath-core type conjugate filaments of 3.5 dtex in fineness.
  • a nonwoven fabric base was prepared through the method used in Example 1 except for heating the engraved roller to 120°C. This nonwoven fabric base was 30g/m 2 in weight and 200 ⁇ m in thickness.
  • the filamentous web and the nonwoven fabric base were laminated and needle-punched by the method used in Example 1.
  • the needle-punched laminate was caused to pass through between an engraved roller heated to 120°C and a flat roller heated to 90°C, and a nonwoven fabric for loop material of hook-and-loop fastener was obtained without applying binder resin.
  • the non-engraved part of the engraved roller was lattice-shaped as shown in Fig. 5 so that the lattice-shaped thermally-press-joined area may be formed, and the non-engraved parts were 1.5mm in height. Size of each individual area not thermally-press-joined surrounded by the thermally-press-joined area was 25mm 2 . and the gross size occupied by the areas not thermally-press-joined was 59% of the whole surface size.
  • a nonwoven fabric for loop material of hook-and-loop fastener was obtained by the method used in Example 2, with the exception that the non-engraved parts of the engraved roller used in Example 2 was changed to a large lattice-shaped configuration, each individual area not thermally-press-joined surrounded by the thermally-press-joined area was 100mm 2 in size, and the gross size occupied by the areas not thermally-press-joined was 76% of the whole surface size.
  • a nonwoven fabric for loop material of hook-and-loop fastener was obtained by the method used in Example 2, with the exception that the non-engraved parts of the engraved roller used in Example 2 were changed to a texture-shaped configuration as shown in Fig. 6 and the gross size occupied by the area not thermally-press-joined was 71% of the whole surface size.
  • a nonwoven fabric for loop material of hook-and-loop fastener was obtained by the method used in Example 3, with the exception that the nonwoven fabric base used in Example 3 was changed to a nonwoven fabric base of 55g/m 2 in weight and 450 ⁇ m in thickness.
  • a nonwoven fabric for loop material of hook-and-loop fastener was obtained by the method used in Example 2. with the exception that the non-engraved part of the engraved roller used in Example 2 was changed to a more tight lattice-shaped configuration, each individual area not thermally-press-joined surrounded by the thermally-press-joined area was 4mm 2 , and the gross size occupied by the areas not thermally-press-joined was 44% of the whole surface size.
  • a nonwoven fabric for loop material of hook-and-loop fastener was obtained by the method used in Example 3, with the exception that height of the non-engraved part of the engraved roller used in Example 3 was changed to 2.5mm.
  • a rectangular test piece of 5cm in MD direction (mechanical direction) and 10cm in CD direction (direction crossing the mechanical direction at right angles) was cut out of the nonwoven fabric for loop material of hook-and-loop fastener. Short sides of the test piece were put together and middle part thereof was pasted together with tape, thereby a cylindrical test piece was prepared. The test piece was stood on a flat board and crushed with another flat board perpendicular to an MD direction. Maximum strength applied to the flat board at that moment was measured with a Tensilon RTM-500 produced by Toyo Baldwin at a compression speed of 50mm/min and adopted as the compression bending strength in MD direction.
  • the softness is preferably not more than 196cN and, more preferably, not more than 147cN.
  • a rectangular test piece of 5cm in CD direction and 30cm in MD direction was cut out of the nonwoven fabric for loop material of hook-and-loop fastener .
  • a rectangular test piece of 5cm in MD direction and 30cm in CD direction was cut out, and the strength at 5% extension (in CD direction) was obtained in the same manner. Note that the nonwoven fabric for loop material of hook-and-loop fastener extends about 5% in many cases when it is actually used, and therefore it is considered that the strength at 5% extension shows the degree of the dimensional stability under such situation.
  • the hook material surface (the loop side) of the test piece was observed visually and the state of fluff raised by cutting out or getting out of the loops was evaluated on the following five grades.
  • Polyethylene terephthalate whose melting point is 255°C was molten at 285°C and spun out of a spinneret. An air sucker drew the polyethylene terephthalate at a spinning speed of 5000m/min.
  • the drawn polyethylene terephthalate filaments B were accumulated on a collecting conveyor, and a filamentous web of 80g/m 2 in weight was obtained. Each of the polyethylene terephthalate filaments B was 7 dtex in fineness.
  • the obtained filamentous web was needle-punched by a needle-punching machine (needles: Crown barb needles produced by Foster).
  • the needle punching was performed under the conditions that the punching needles were caused to pass through the filamentous web, the punching density was 50 times/cm 2 , and the needle depth in punching was 9mm.
  • the filamentous web was provided with a large number of loops on the opposite side of the side from which the punching needles pass through, and the polyethylene terephthalate filaments B were entangled with each other.
  • the needle-punched filamentous web was caused to pass through between an engraved roller heated to 235°C and a flat roller heated to 190°C.
  • the non-engraved part of the engraved roller was honeycomb-shaped as shown in Fig. 4 so that the honeycomb-shapedthermally-press-bondedareamaybeformed.
  • the non-engraved part was 2.5mm in height. Size of each individual area not thermally-press-bonded surrounded by the thermally-press-bonded area was 85mm 2 , and the gross size occupied by the areas not thermally-press-bonded was 60% of the whole surface size.
  • the filamentous web was dipped in acrylic resin emulsion (produced by Dainippon Ink & Chemicals, inc. ) so that the deposit amount of solidacrylic resin may be 6% by weight, and then dried.
  • acrylic resin emulsion produced by Dainippon Ink & Chemicals, inc.
  • Polyethylene terephthalate whose melting point is 255°C was used as a core component and high density polyethylene whose melting point is 125°C was used as a sheath component. They were molten and spun out of a conjugate spinneret, then were drawn by an air sucker.
  • the drawn sheath-core type conjugate filaments B conjugate ratio of the core and the sheath was 1/1 in ratio by mass
  • Each of the sheath-core type conjugate filaments B was 7 dtex in fineness.
  • the obtained filamentous web was needle-punched under the same conditions as in Example 10.
  • the needle-punched filamentous web was caused to pass through between an engraved roller heated to 125°C and a flat roller heated to 120°C.
  • the non-engraved part of the engraved roller was lattice-shaped as shown in Fig. 5 so that the lattice-shaped thermally-press-bonded area may be formed.
  • the non-engraved part was 3mm in height. Size of each individual area not thermally-press-bonded surrounded by the thermally-press-bonded area was 25mm 2 , and the gross size occupied by the areas not thermally-press-bonded was 59% of the whole surface size.
  • a nonwoven fabric for loop material of hook-and-loop fastener was obtained. Note that, in this example, any binder resin was not applied to the filamentous web.
  • a nonwoven fabric for loop material of hook-and-loop fastener was obtained by the method used in Example 11, with the exception that the filamentous web was 75g/m 2 in weight, the non-engraved part of the engraved roller to be used was largely lattice-shaped, and the temperature of the engraved roller was 95°C. As a result of using the engraved roller having the large lattice-shaped non-engraved part, size of each individual area not thermally-press-bonded was 100mm 2 , and the gross size occupied by the areas not thermally-press-bonded was 62% of the whole surface size.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)
EP00970118A 2000-04-24 2000-10-26 Vliesstoff zur verwndung als schlaufentiel von haftverschluss und herstellungsverfahen Withdrawn EP1279348A1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2000122990 2000-04-24
JP2000122990 2000-04-24
PCT/JP2000/007526 WO2001080680A1 (fr) 2000-04-24 2000-10-26 Non-tisse destine a etre utilise dans un element femelle d'une fixation a boucles et crochets et procede de fabrication associe

Publications (1)

Publication Number Publication Date
EP1279348A1 true EP1279348A1 (de) 2003-01-29

Family

ID=18633396

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00970118A Withdrawn EP1279348A1 (de) 2000-04-24 2000-10-26 Vliesstoff zur verwndung als schlaufentiel von haftverschluss und herstellungsverfahen

Country Status (3)

Country Link
EP (1) EP1279348A1 (de)
KR (1) KR100666255B1 (de)
WO (1) WO2001080680A1 (de)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004013397A1 (en) * 2002-07-31 2004-02-12 Kimberly-Clark Worldwide, Inc. Mechanical fastening system for an article
WO2004049853A1 (en) * 2002-12-03 2004-06-17 Velcro Industries B.V. Needling through carrier sheets to form loops
DE102004053805B3 (de) * 2004-11-08 2006-08-03 Fibertex A/S Verfahren zur Herstellung eines Teils eines mechanischen Befestigungssystems
WO2007096842A1 (en) * 2006-02-24 2007-08-30 The Procter & Gamble Company Nonwoven fabric for a female component of a fastening system
WO2007096841A1 (en) * 2006-02-24 2007-08-30 The Procter & Gamble Company A fastening system
US7282251B2 (en) 2001-06-12 2007-10-16 Vekro Industries B.V. Loop materials for touch fastening
WO2008154303A1 (en) * 2007-06-07 2008-12-18 Velcro Industries B.V. Needling loops into carrier sheets
WO2008154300A1 (en) * 2007-06-07 2008-12-18 Velcro Industries B.V. Anchoring loops of fibers needled into a carrier sheet
US7547469B2 (en) * 2002-12-03 2009-06-16 Velcro Industries B.V. Forming loop materials
DE102008059512A1 (de) * 2008-11-28 2010-06-10 Nordenia Deutschland Gronau Gmbh Verbundstoffelement für einen Klettverschluss
US7789870B2 (en) 2007-02-23 2010-09-07 The Procter & Gamble Company Nonwoven fabric for a female component of a fastening system
US7895718B2 (en) 2007-02-23 2011-03-01 The Procter & Gamble Company Fastening system
CN102008158B (zh) * 2006-02-24 2013-01-02 三井化学株式会社 用于紧固件包容元件的无纺网
US9078793B2 (en) 2011-08-25 2015-07-14 Velcro Industries B.V. Hook-engageable loop fasteners and related systems and methods
US9119443B2 (en) 2011-08-25 2015-09-01 Velcro Industries B.V. Loop-engageable fasteners and related systems and methods
US9388519B1 (en) 2015-01-30 2016-07-12 Velcro BVBA Needling fibrous webs
CN106573432A (zh) * 2014-07-09 2017-04-19 3M创新有限公司 表面扣件环构件和卫生制品
WO2017190717A1 (en) 2016-05-02 2017-11-09 Pegas Nonwovens S.R.O. Nonwoven web comprising thermally fusible fibers and bonding impressions forming a pattern
US9872543B2 (en) 2015-05-29 2018-01-23 Velcro BVBA Loop fastening material
US10010142B2 (en) 2015-05-29 2018-07-03 Velcro BVBA Loop fastening material
EP3403634A1 (de) * 2017-05-04 2018-11-21 Lohmann-koester GmbH & Co. KG Schlaufenmaterial

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07171011A (ja) * 1993-12-17 1995-07-11 Japan Vilene Co Ltd 面ファスナー雌材及びその製造方法
JP2971332B2 (ja) * 1994-07-08 1999-11-02 大和紡績株式会社 面ファスナー雌材
US5656351A (en) * 1996-01-16 1997-08-12 Velcro Industries B.V. Hook and loop fastener including an epoxy binder
JP3877842B2 (ja) * 1997-03-05 2007-02-07 ユニチカ株式会社 面ファスナー用雌材の製造方法
JP2000041712A (ja) * 1998-07-27 2000-02-15 Seihou:Kk 面ファスナー用雌面

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0180680A1 *

Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7282251B2 (en) 2001-06-12 2007-10-16 Vekro Industries B.V. Loop materials for touch fastening
WO2004013397A1 (en) * 2002-07-31 2004-02-12 Kimberly-Clark Worldwide, Inc. Mechanical fastening system for an article
US8323435B2 (en) 2002-07-31 2012-12-04 Kimberly-Clark Worldwide, Inc. Mechanical fastening system for an article
US9125775B2 (en) 2002-07-31 2015-09-08 Kimberly-Clark Worldwide, Inc. Mechanical fastening system for an article
US7547469B2 (en) * 2002-12-03 2009-06-16 Velcro Industries B.V. Forming loop materials
WO2004049853A1 (en) * 2002-12-03 2004-06-17 Velcro Industries B.V. Needling through carrier sheets to form loops
US7156937B2 (en) * 2002-12-03 2007-01-02 Velcro Industries B.V. Needling through carrier sheets to form loops
US8753459B2 (en) * 2002-12-03 2014-06-17 Velcro Industries B.V. Needling loops into carrier sheets
DE102004053805B3 (de) * 2004-11-08 2006-08-03 Fibertex A/S Verfahren zur Herstellung eines Teils eines mechanischen Befestigungssystems
WO2007096842A1 (en) * 2006-02-24 2007-08-30 The Procter & Gamble Company Nonwoven fabric for a female component of a fastening system
US8898868B2 (en) 2006-02-24 2014-12-02 The Procter & Gamble Company Fastening system
US9468265B2 (en) 2006-02-24 2016-10-18 The Procter & Gamble Company Fastening system
CN102008158B (zh) * 2006-02-24 2013-01-02 三井化学株式会社 用于紧固件包容元件的无纺网
US8388596B2 (en) 2006-02-24 2013-03-05 The Procter & Gamble Company Fastening system
EP2596715A1 (de) * 2006-02-24 2013-05-29 Mitsui Chemicals, Inc. Vliesbahn für das Aufnahmeelement eines Klettverschlusses
WO2007096841A1 (en) * 2006-02-24 2007-08-30 The Procter & Gamble Company A fastening system
US7789870B2 (en) 2007-02-23 2010-09-07 The Procter & Gamble Company Nonwoven fabric for a female component of a fastening system
US7895718B2 (en) 2007-02-23 2011-03-01 The Procter & Gamble Company Fastening system
US8590119B2 (en) 2007-02-23 2013-11-26 The Procter & Gamble Company Fastening system
US8673097B2 (en) * 2007-06-07 2014-03-18 Velcro Industries B.V. Anchoring loops of fibers needled into a carrier sheet
WO2008154300A1 (en) * 2007-06-07 2008-12-18 Velcro Industries B.V. Anchoring loops of fibers needled into a carrier sheet
WO2008154303A1 (en) * 2007-06-07 2008-12-18 Velcro Industries B.V. Needling loops into carrier sheets
DE102008059512A1 (de) * 2008-11-28 2010-06-10 Nordenia Deutschland Gronau Gmbh Verbundstoffelement für einen Klettverschluss
US9078793B2 (en) 2011-08-25 2015-07-14 Velcro Industries B.V. Hook-engageable loop fasteners and related systems and methods
US9119443B2 (en) 2011-08-25 2015-09-01 Velcro Industries B.V. Loop-engageable fasteners and related systems and methods
US9872542B2 (en) 2011-08-25 2018-01-23 Velcro BVBA Loop-engageable fasteners and related systems and methods
CN106573432B (zh) * 2014-07-09 2019-06-28 3M创新有限公司 表面扣件环构件和卫生制品
CN106573432A (zh) * 2014-07-09 2017-04-19 3M创新有限公司 表面扣件环构件和卫生制品
US9790626B2 (en) 2015-01-30 2017-10-17 Velcro BVBA Needling fibrous webs
CN107407025A (zh) * 2015-01-30 2017-11-28 维尔克有限公司 针缝纤维状网
WO2016120444A1 (en) * 2015-01-30 2016-08-04 Velcro BVBA Needling fibrous webs
US9388519B1 (en) 2015-01-30 2016-07-12 Velcro BVBA Needling fibrous webs
CN107407025B (zh) * 2015-01-30 2019-10-01 维尔克有限公司 针缝纤维状网
US9872543B2 (en) 2015-05-29 2018-01-23 Velcro BVBA Loop fastening material
US10010142B2 (en) 2015-05-29 2018-07-03 Velcro BVBA Loop fastening material
WO2017190717A1 (en) 2016-05-02 2017-11-09 Pegas Nonwovens S.R.O. Nonwoven web comprising thermally fusible fibers and bonding impressions forming a pattern
EP3403634A1 (de) * 2017-05-04 2018-11-21 Lohmann-koester GmbH & Co. KG Schlaufenmaterial
RU2763548C2 (ru) * 2017-05-04 2021-12-30 Ломан-кёстер ГмбХ унд Ко.КГ Петельный материал

Also Published As

Publication number Publication date
KR100666255B1 (ko) 2007-01-09
WO2001080680A1 (fr) 2001-11-01
KR20020028908A (ko) 2002-04-17

Similar Documents

Publication Publication Date Title
EP1279348A1 (de) Vliesstoff zur verwndung als schlaufentiel von haftverschluss und herstellungsverfahen
US6642160B1 (en) Loop material of hook-and-loop fastener and manufacturing process thereof
US6647600B1 (en) Hook and loop fastener for flat materials
EP0937420B1 (de) Weibliches Element eines Flächenreissverschlusses und Verfahren zur Herstellung desselben
EP0215475B1 (de) Chirurgischer Nonwoven-Tupfer mit mittels Röntgenstrahlen nachweisbarem Element
JP4894977B2 (ja) 表面凹凸構造を有する不織布及びそれを用いた製品
CA1253323A (en) Nonwoven surgical sponge with x-ray detectable element
KR102407405B1 (ko) 비평면 부직포 직물 및 그 제조 방법
WO1999060881A1 (fr) Element de fixation et article absorbant comportant ledit element
WO2006008662A2 (en) A hook and loop fastener device
JPS62215057A (ja) 補強不織布
CN109763264A (zh) 钩型紧固件用长纤维无纺布环
JP4191364B2 (ja) 面ファスナ雌材用不織布の製造方法
JPH0446146B2 (de)
JP2002105826A (ja) 開孔不織布及びその製造方法
JPH11285403A (ja) 面ファスナ―雌材およびその製造方法
JPH09105060A (ja) 積層不織布およびその製法
JP2783411B2 (ja) 高強度湿式不織布及びその製造方法
JPH0657610A (ja) 高吸水性不織布材料
JPH07238403A (ja) エプロン
JPH08176946A (ja) 不織布芯地
JPH0841762A (ja) 積層不織布及びその製造方法
JPH0314694A (ja) 寸法安定性に優れた湿式不織布及びその製造方法
JPH0931857A (ja) 積層不織布及びその製造方法
JPH083855A (ja) 積層不織構造体

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20020111

AK Designated contracting states

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

RBV Designated contracting states (corrected)

Designated state(s): DE FR GB IT

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20040504