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NZ759155B2 - Hydroentangled airlaid process and industrial wipe products - Google Patents
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NZ759155B2 - Hydroentangled airlaid process and industrial wipe products - Google Patents

Hydroentangled airlaid process and industrial wipe products

Info

Publication number
NZ759155B2
NZ759155B2 NZ759155A NZ75915518A NZ759155B2 NZ 759155 B2 NZ759155 B2 NZ 759155B2 NZ 759155 A NZ759155 A NZ 759155A NZ 75915518 A NZ75915518 A NZ 75915518A NZ 759155 B2 NZ759155 B2 NZ 759155B2
Authority
NZ
New Zealand
Prior art keywords
web
nonwoven web
fibers
weight
fiber
Prior art date
Application number
NZ759155A
Other versions
NZ759155A (en
Inventor
Geoffrey W Collins
Richard Knowlson
Eric Mariani
Original Assignee
Glatfelter Holding (Switzerland) Ag
Filing date
Publication date
Priority claimed from US15/595,251 external-priority patent/US10415166B2/en
Application filed by Glatfelter Holding (Switzerland) Ag filed Critical Glatfelter Holding (Switzerland) Ag
Publication of NZ759155A publication Critical patent/NZ759155A/en
Publication of NZ759155B2 publication Critical patent/NZ759155B2/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/0208—Tissues; Wipes; Patches
    • 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
    • D04H1/42—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 characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/425—Cellulose series
    • 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
    • D04H1/42—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 characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4374—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 characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece using different kinds of webs, e.g. by layering 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
    • D04H1/42—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 characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • 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
    • D04H1/42—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 characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43825—Composite fibres
    • D04H1/43828—Composite fibres sheath-core
    • 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
    • D04H1/42—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 characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43835—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
    • 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
    • D04H1/49—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 entanglement by fluid jet in combination with another consolidation means
    • 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
    • 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
    • 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
    • D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
    • D04H1/5412—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres sheath-core
    • 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
    • D04H1/542—Adhesive fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D04H1/732—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by fluid current, e.g. air-lay

Abstract

method to prepare nonwoven webs suitable for use as an industrial wipe which have good MD and CD strength is provided. The method includes hydroentangling an airlaid web of natural cellulose fibers having a fiber length of no more than 3.5 mm, bonding fibers having a fiber length of from 6.0 to 12.0 mm and optionally, manmade fibers having a fiber length of from 6.0 to 12.0 mm. The airlaid web is a homogeneous mat of the natural cellulose fibers, the optional manmade fibers and the bonding fibers and is not laid on a precursor web. No non-fiber adhesive or binder is utilized. The airlayering and hydroentangling are conducted in a continuous operation. The method to manufacture the nonwoven web may include an embossing or crepeing operation.

Claims (26)

1. A method for production of a nonwoven web, comprising: preparing a mixture of defibrated natural cellulose fibers and bonding fibers; airforming the mixture to obtain at least one homogeneous airlaid web; hydroentangling the airlaid web to consolidate the web on at least one side; and drying and thermobonding the hydroentangled web to obtain the nonwoven web; wherein the airforming and hydroentangling is conducted in a continuous operation, wherein the melting range of the bonding fiber is within the temperature range of the drying unit, wherein the drying and the thermobonding takes place simultaneously in the drying unit, the bonding fibers are bi-component fibers composed of a core and sheath structure wherein the sheath contains or is made of a polymer having a melting point lower than the melting point of the polymer composition of the core, a content of the natural cellulose fibers in the mixture of fibers is from 50 to 90 % by weight, a content of the bonding fibers is from 10 to 50 % by weight, no non-fiber binder or adhesive is utilized, no continuous fiber is utilized, a fiber length of the natural cellulose fibers is no more than 3.5 mm, a fiber length of the bonding fibers is from 6.0 to 12.0 mm, a basis weight of the nonwoven web is from 20 g/m to 100 g/m , a thickness of the nonwoven web is from 0.25 mm to 2 mm, and the % by weight is relative to a total dry weight of the nonwoven web.
2. The method according to claim 1, wherein the basis weight is from 40 g/m to 60 g/m .
3. The method according to claim 1 or claim 2, wherein the natural cellulose fiber is wood pulp.
4. The method according to claim 3, wherein the wood pulp is a sulfite pulp obtained by sulfite pulping.
5. The method of any one of claims 1 to 4, where in the mixture further comprises manmade fibers.
6. The method of claim 5, wherein a content of the bonding fibers and the manmade fibers is from 10 to 50 % by weight.
7. The method of claim 5 or claim 6, wherein a fiber length of the manmade fibers is from 6.0 to 12.0 mm.
8. The method according to any one of claims 5 to 7, wherein the manmade fiber is viscose or lyocell.
9. The method according to any one of claims 1 to 8, wherein the sheath of the bonding fiber comprises at least one of polyethylene or polyester low melt (PLM) and the core of the bonding fiber comprises at least one of a polypropylene and a polyester.
10. The method according to any one of claims 1 to 9, wherein a content of the bonding fiber is from 8 to 25 % by weight of the dry nonwoven web.
11. The method according to any one of claims 1 to 10, wherein the airlaid web is hydroentangled to consolidate the web on both sides.
12. The method according to any one of claims 1 to 11, wherein an applied pressure of the hydroentanglement is from 0.07 bars/kg/h/m to 11 bars/kg/h/m.
13. The method according to claim 12, wherein the applied pressure of the hydroentanglement is from 1.0 bars/kg/h/m to 3 bars/kg/h/m.
14. The method according to any one of claims 1 to 13, wherein a temperature of the drying operation is equal to or up to 10ºC greater than the melting point of the sheath polymer with the proviso that the drying temperature is less than the melting point of the at least one core polymer.
15. The method according to any one of claims 1 to 14, further comprising: embossing the hydroentangled web; wherein the embossing operation is continuous with the airforming and hydroentangling.
16. The method according to any one of claims 1 to 15, further comprising crepeing the dried and thermobonded nonwoven web.
17. The method according to any one of claims 1 to 16, wherein the airforming of the airlaid web is conducted in a single airformer.
18. The method according to any one of claims 1 to 16, wherein the airforming of the airlaid web is conducted in more than one airformer and the fiber content of each web is the same.
19. The method according to any one of claims 1 to 16, wherein the airforming of the airlaid web is conducted in more than one airformer and a fiber content of at least one web is different from the fiber content of another web.
20. The method according to any one of claims 1 to 19, wherein airforming the mixture to obtain at least one homogeneous airlaid web comprises directly forming the airlaid web on a carrier of an airformer without preforming a precursor web or incorporating a continuous filament web.
21. The method according to any one of claims 1 to 20, wherein a ratio of tensile strength in a machine direction to tensile strength in a direction perpendicular to the machine direction (MD/CD) is less than 3.
22. A nonwoven web obtained by the method according to any one of claims 1 to 21, wherein a CD wet tensile strength of the nonwoven web is at least 8 N/5cm and a MD/CD ratio is less than 3.
23. The nonwoven web according to claim 22, wherein the nonwoven web comprises: from 60 % to 85% by weight of wood pulp; from 20 % to 5% by weight of lyocell; and from 10 to 20 % by weight bonding fibers; wherein the basis weight of the nonwoven web is from 40 g/m to 60 g/m ,a MD/CD ratio is less than 3, a CD wet tensile strength is at least 12 N/5cm, and the thickness of the nonwoven web is from 0.5 mm to 1.5 mm.
24. The nonwoven web according to claim 22, wherein the nonwoven web comprises: from 60 % to 85% by weight of wood pulp; from 20 % to 5% by weight of viscose; and from 10 to 20 % by weight bonding fibers; wherein the basis weight of the nonwoven web is from 40 g/m to 60 g/m , a MD/CD ratio is less than 3, a CD wet tensile strength is at least 12 N/5cm, and the thickness of the nonwoven web is from 0.5 mm to 1.5 mm.
25. An industrial wipe, comprising: the nonwoven web according to any one of claims 22 to 24; and at least one selected from the group consisting of a solvent, a cleansing agent, a sterilizing agent, a deodorizing agent, a disinfectant, a polishing agent and an anti-static agent.
26. The method for production of a nonwoven web of claim 1, substantially described and shown in any one of
NZ759155A 2018-04-20 Hydroentangled airlaid process and industrial wipe products NZ759155B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15/595,251 US10415166B2 (en) 2017-05-15 2017-05-15 Hydroentangled airlaid process and industrial wipe products
PCT/US2018/028564 WO2018212904A1 (en) 2017-05-15 2018-04-20 Hydroentangled airlaid process and industrial wipe products

Publications (2)

Publication Number Publication Date
NZ759155A NZ759155A (en) 2025-05-30
NZ759155B2 true NZ759155B2 (en) 2025-09-02

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