US20210301437A1 - Wipe and manufacturing method thereof - Google Patents

Wipe and manufacturing method thereof Download PDF

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Publication number
US20210301437A1
US20210301437A1 US17/262,206 US201917262206A US2021301437A1 US 20210301437 A1 US20210301437 A1 US 20210301437A1 US 201917262206 A US201917262206 A US 201917262206A US 2021301437 A1 US2021301437 A1 US 2021301437A1
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United States
Prior art keywords
melt
wipe
fibers
hot
wood pulp
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Abandoned
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US17/262,206
Inventor
Qingzhong Zheng
Shunxin He
Danpin Wu
Jihua XIE
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Xiamen Yanjan New Material Co Ltd
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Xiamen Yanjan New Material Co Ltd
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Assigned to XIAMEN YANJAN NEW MATERIAL CO., LTD. reassignment XIAMEN YANJAN NEW MATERIAL CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HE, Shunxin, WU, Danpin, XIE, JIHUA, ZHENG, Qingzhong
Publication of US20210301437A1 publication Critical patent/US20210301437A1/en
Abandoned legal-status Critical Current

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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
    • D04H1/04—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres having existing or potential cohesive properties, e.g. natural fibres, prestretched or fibrillated artificial fibres
    • D04H1/26—Wood pulp
    • 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
    • D04H1/425—Cellulose series
    • D04H1/4258—Regenerated 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
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    • D04H1/4291—Olefin series
    • D—TEXTILES; PAPER
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    • D04H1/4326—Condensation or reaction polymers
    • D04H1/4334—Polyamides
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    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
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    • D—TEXTILES; PAPER
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    • 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
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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
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    • 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
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    • 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
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    • D04H1/5418—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
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    • 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
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    • D—TEXTILES; PAPER
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    • D04H1/551—Resins thereof not provided for in groups D04H1/544 - D04H1/55
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    • D—TEXTILES; PAPER
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    • D10B2509/026—Absorbent pads; Tampons; Laundry; Towels

Definitions

  • the present invention relates to a wipe, and more particularly to a wipe for personal hygiene and baby care, which can prevent the wipe from shedding fibers and agglomeration.
  • a manufacturing method for the wipe is also disclosed.
  • wipes are convenient to carry, store and use, they are popular among consumers. Wipes are often used in our daily life when, for example, parents change babies' diapers, people have meals in restaurants, or people do skincare. It can be seen that wipes have increasingly extensive use in particularly personal hygiene and baby care.
  • a wipe may be a spunlace non-woven product or spunbond non-woven product. Compared with a conventional cloth wipe, its manufacturing method is easy, the price is low, and the wipe can be used in a dry or wet manner.
  • Cipheral Patent Application No. 93118457.6 discloses a wear-resistant fiber non-woven composite structure. It consists of the following two components: (1) a melt-blown fiber substrate having a first outer surface, a second outer surface and an inner portion, and (2) at least one other fiber material interwoven into the melt-blown fiber substrate.
  • the concentration of melt-blown fibers near each outer surface of the non-woven composite structure is at least about 60% by weight, and the concentration of melt-blown fibers in the inner portion is less than about 40% by weight.
  • This wipe provides sufficient strength and reduces the phenomenon of shedding fibers.
  • the abrasion resistance of this wipe is at least about 25% greater than that of a homogeneous blend of the same grade.
  • the melt-blown layer formed by the melt-blown fibers on the surface of the wipe is denser. In a certain extent, this prevents the interior other fiber materials from falling out when in use. However, the interior other fibers are not adhered to each other.
  • the phenomenon of “shedding fibers” also occurs when in use, and agglomeration may occur when wiping after the wipe has absorbed a liquid. This affects the use effect of the wipe and reduces the service life.
  • the objective of the present invention is to provide a wipe that can prevent the wipe from shedding fibers and agglomeration and a manufacturing method thereof.
  • the present invention implements the following technical schemes.
  • a wipe comprises upper and lower layers of melt-blown fiber webs and an intermediate layer of a wood pulp fiber web that contains a hot-melt adhesive substance, wherein melt-blown fibers of the melt-blown fiber webs are woven into the wood pulp fiber web.
  • the hot-melt adhesive substance is polyester fibers having a low-melting-point, ES short fibers, two-component spunbond long fibers or a blend thereof.
  • the hot-melt adhesive substance is present in the wood pulp fiber web in an amount of 1-15 g/m 2 .
  • the hot-melt adhesive substance is present in the wood pulp fiber web in an amount of 2-5 g/m 2 .
  • the melt-blown fibers are polyolefin fibers, polyester fibers, polyamide fibers, polyurethane fibers, polylactic acid fibers, or a blend thereof
  • a weight percentage of the wood pulp fiber web in the wipe is greater than 50 wt %.
  • a weight percentage of the wood pulp fiber web in the wipe is 65 wt %-80 wt %.
  • a manufacturing method for the wipe of claim 1 comprising steps of:
  • thermoplastic resin (2) performing a melt blowing process involving heating and melting a thermoplastic resin; dispersing melt streams of the thermoplastic resin that have been extruded from spinneret plates into fiber bundles having a diameter of ⁇ 10 ⁇ m using a high-temperature, high-speed hot air stream, thereby forming the melt-blown fiber webs in the presence of the hot air stream; and joining the melt-blown fiber webs with two side surfaces of the wood pulp fiber web containing the hot-melt adhesive substance, so as to form a multi-layer fiber web having the melt-blown fiber webs at its two sides and having the wood pulp fiber web containing the hot-melt adhesive substance in its middle; and
  • the hot-melt adhesive substance is polyester fibers having a low-melting-point, ES short fibers, two-component spunbond long fibers or a blend thereof.
  • the heating device is a hot air oven, a hot rolling roller or a combination thereof.
  • the present invention provides a wipe made using the manufacturing method.
  • the hot-melt adhesive substance in the wood pulp fiber web of the intermediate layer of the disclosed wipe in the manufacturing process, when the multi-layer fiber web passes through the heating device, the surface of the hot-melt adhesive substance will begin to melt in the hot-air environment.
  • the hot-melt adhesive substance and the fibers are in contact with each other, they will bind together to form an interwoven web structure.
  • the wood pulp short fibers of the intermediate layer are retained in the web structure, making it difficult for the wood pulp short fibers to move, so as to effectively prevent the wipe from shedding fibers when in use and to effectively prevent agglomeration of short wood pulp fibers after the wipe has absorbed a liquid.
  • FIG. 1 is a schematic drawing illustrating manufacturing of a wipe of the present invention.
  • FIG. 2 is a cross-sectional view of the wipe of the present invention.
  • the present invention discloses a manufacturing method for a wipe, comprising the following steps:
  • the hot-melt adhesive substance 2 may be polyester fibers having a low-melting-point, ES short fibers, two-component spunbond long fibers or a blend thereof.
  • the blend refers to a blend of two or all of polyester fibers having a low-melting-point, ES short fibers and two-component spunbond long fibers;
  • melt blowing process involving heating and melting a thermoplastic resin; dispersing melt streams of the thermoplastic resin that have been extruded from spinneret plates C 1 , C 2 into fiber bundles having a diameter of ⁇ 10 ⁇ m using a high-temperature, high-speed hot air stream, thereby forming melt-blown fiber webs 4 , 5 in the presence of the hot air stream; and joining the melt-blown fiber webs 4 , 5 with two side surfaces of the wood pulp fiber web 3 containing the hot-melt adhesive substance 2 , so as to form a multi-layer fiber web 6 having the melt-blown fiber webs 4 , 5 at its two sides and having the wood pulp fiber web 3 containing the hot-melt adhesive substance 2 in its middle.
  • the melt-blown fibers are polyolefin fibers, polyester fibers, polyamide fibers, polyurethane fibers, polylactic acid fibers, or a blend thereof.
  • the blend refers to a blend of two, three, four or all five of polyolefin fibers, polyester fibers, polyamide fibers, polyurethane fibers, and polylactic acid fibers;
  • a weight percentage of the wood pulp fiber web 3 in the wipe 7 is greater than 50 wt %.
  • a weight percentage of the wood pulp fiber web 3 in the wipe 7 is 65 wt %-80 wt %.
  • the present invention further discloses a wipe made using the foregoing manufacturing method.
  • the wipe has a laminated structure.
  • the wipe 7 comprises upper and lower layers of melt-blown fiber webs 4 , 5 and an intermediate layer of a wood pulp fiber web 3 containing a hot-melt adhesive substance 2 .
  • Melt-blown fibers of the melt-blown fiber webs 4 , 5 are woven into the wood pulp fiber web 3 .
  • the hot-melt adhesive substance is present in the wood pulp fiber web in an amount of 1-15 g/m 2 .
  • the hot-melt adhesive substance is present in the wood pulp fiber web in an amount of 2-5 g/m 2 .
  • the hot-melt adhesive substance is present in the wood pulp fiber web in an amount of 3 g/m 2 .
  • the hot-melt adhesive substance 2 may be polyester fibers having a low-melting-point, ES short fibers, two-component spunbond long fibers or a blend thereof.
  • the blend refers to a blend of two or all of polyester fibers having a low-melting-point, ES short fibers and two-component spunbond long fibers.
  • the wipe 7 is formed by forming denser melt-blown fiber webs 4 , 5 on the upper and lower layers, thereby preventing other interior fiber substances from falling out when in use, and the intermediate layer of the wood pulp fiber web 3 contains the hot-melt adhesive substance 2 .
  • the surface of the hot-melt adhesive substance 2 will begin to melt in the hot-air environment.
  • the hot-melt adhesive substance 2 and the fibers are in contact with each other, they will bind together to form an interwoven web structure.
  • the wood pulp short fibers of the intermediate layer are retained in the web structure, making it difficult for the wood pulp short fibers to move, so as to effectively prevent the wipe from shedding fibers when in use and to effectively prevent agglomeration of short wood pulp fibers after the wipe 7 has absorbed a liquid.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Nonwoven Fabrics (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)

Abstract

A wipe comprises upper and lower melt-blown fiber webs and an intermediate wood pulp fiber web containing a hot-melt adhesive substance. Melt-blown fibers of the melt-blown fiber webs are interwoven in the wood pulp fiber web. A manufacturing method of a wipe can manufacture a water-absorbing wipe, effectively prevent the wipe from shedding fibers when in use, and effectively prevent agglomeration of short wood pulp fibers after the wipe has absorbed a liquid.

Description

    BACKGROUND OF THE INVENTION 1. Field of the Invention
  • The present invention relates to a wipe, and more particularly to a wipe for personal hygiene and baby care, which can prevent the wipe from shedding fibers and agglomeration. A manufacturing method for the wipe is also disclosed.
    • 2. Description of the Prior Art
  • Since wipes are convenient to carry, store and use, they are popular among consumers. Wipes are often used in our daily life when, for example, parents change babies' diapers, people have meals in restaurants, or people do skincare. It can be seen that wipes have increasingly extensive use in particularly personal hygiene and baby care.
  • A wipe may be a spunlace non-woven product or spunbond non-woven product. Compared with a conventional cloth wipe, its manufacturing method is easy, the price is low, and the wipe can be used in a dry or wet manner.
  • Chinese Patent Application No. 93118457.6 discloses a wear-resistant fiber non-woven composite structure. It consists of the following two components: (1) a melt-blown fiber substrate having a first outer surface, a second outer surface and an inner portion, and (2) at least one other fiber material interwoven into the melt-blown fiber substrate. The concentration of melt-blown fibers near each outer surface of the non-woven composite structure is at least about 60% by weight, and the concentration of melt-blown fibers in the inner portion is less than about 40% by weight. This wipe provides sufficient strength and reduces the phenomenon of shedding fibers. The abrasion resistance of this wipe is at least about 25% greater than that of a homogeneous blend of the same grade. The melt-blown layer formed by the melt-blown fibers on the surface of the wipe is denser. In a certain extent, this prevents the interior other fiber materials from falling out when in use. However, the interior other fibers are not adhered to each other. The phenomenon of “shedding fibers” also occurs when in use, and agglomeration may occur when wiping after the wipe has absorbed a liquid. This affects the use effect of the wipe and reduces the service life.
    • SUMMARY OF THE INVENTION
  • In order to overcome the defects of the conventional product and its manufacturing method, the objective of the present invention is to provide a wipe that can prevent the wipe from shedding fibers and agglomeration and a manufacturing method thereof.
  • For achieving the foregoing objective, the present invention implements the following technical schemes.
  • A wipe comprises upper and lower layers of melt-blown fiber webs and an intermediate layer of a wood pulp fiber web that contains a hot-melt adhesive substance, wherein melt-blown fibers of the melt-blown fiber webs are woven into the wood pulp fiber web.
  • The hot-melt adhesive substance is polyester fibers having a low-melting-point, ES short fibers, two-component spunbond long fibers or a blend thereof. The hot-melt adhesive substance is present in the wood pulp fiber web in an amount of 1-15 g/m2.
  • The hot-melt adhesive substance is present in the wood pulp fiber web in an amount of 2-5 g/m2.
  • The melt-blown fibers are polyolefin fibers, polyester fibers, polyamide fibers, polyurethane fibers, polylactic acid fibers, or a blend thereof A weight percentage of the wood pulp fiber web in the wipe is greater than 50 wt %.
  • A weight percentage of the wood pulp fiber web in the wipe is 65 wt %-80 wt %.
  • A manufacturing method for the wipe of claim 1, comprising steps of:
  • (1) mixing wood pulp that has been opened and scattered by an opening roller with the hot-melt adhesive substance into a mixture, and blowing the mixture using a blowing nozzle in the presence of an auxiliary air stream to form the wood pulp fiber web containing the hot-melt adhesive substance;
  • (2) performing a melt blowing process involving heating and melting a thermoplastic resin; dispersing melt streams of the thermoplastic resin that have been extruded from spinneret plates into fiber bundles having a diameter of ≤10 μm using a high-temperature, high-speed hot air stream, thereby forming the melt-blown fiber webs in the presence of the hot air stream; and joining the melt-blown fiber webs with two side surfaces of the wood pulp fiber web containing the hot-melt adhesive substance, so as to form a multi-layer fiber web having the melt-blown fiber webs at its two sides and having the wood pulp fiber web containing the hot-melt adhesive substance in its middle; and
  • (3) binding the fiber webs in the multi-layer fiber web together using a heating device, so as to form the wipe having the upper and lower layers of the melt-blown fiber webs and having the intermediate layer of the wood pulp fiber web containing the hot-melt adhesive substance.
  • The hot-melt adhesive substance is polyester fibers having a low-melting-point, ES short fibers, two-component spunbond long fibers or a blend thereof.
  • The heating device is a hot air oven, a hot rolling roller or a combination thereof.
  • By adopting the aforementioned technical schemes, the present invention provides a wipe made using the manufacturing method. With the hot-melt adhesive substance in the wood pulp fiber web of the intermediate layer of the disclosed wipe, in the manufacturing process, when the multi-layer fiber web passes through the heating device, the surface of the hot-melt adhesive substance will begin to melt in the hot-air environment. When the hot-melt adhesive substance and the fibers are in contact with each other, they will bind together to form an interwoven web structure. Thus, in a certain extent, the wood pulp short fibers of the intermediate layer are retained in the web structure, making it difficult for the wood pulp short fibers to move, so as to effectively prevent the wipe from shedding fibers when in use and to effectively prevent agglomeration of short wood pulp fibers after the wipe has absorbed a liquid.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a schematic drawing illustrating manufacturing of a wipe of the present invention; and
  • FIG. 2 is a cross-sectional view of the wipe of the present invention.
    •  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • For further illustrating the technical schemes of the present invention, the following detailed description of the present invention will be made with reference to particular embodiments
  • As shown in FIG. 1, the present invention discloses a manufacturing method for a wipe, comprising the following steps:
  • (1) mixing wood pulp 1 that has been opened and scattered by an opening roller A with a hot-melt adhesive substance 2 into a mixture, and blowing the mixture using a blowing nozzle B in the presence of an auxiliary air stream to form a wood pulp fiber web 3 containing the hot-melt adhesive substance 2. The hot-melt adhesive substance 2 may be polyester fibers having a low-melting-point, ES short fibers, two-component spunbond long fibers or a blend thereof. The blend refers to a blend of two or all of polyester fibers having a low-melting-point, ES short fibers and two-component spunbond long fibers;
  • (2) performing a melt blowing process involving heating and melting a thermoplastic resin; dispersing melt streams of the thermoplastic resin that have been extruded from spinneret plates C1, C2 into fiber bundles having a diameter of ≤10 μm using a high-temperature, high-speed hot air stream, thereby forming melt-blown fiber webs 4, 5 in the presence of the hot air stream; and joining the melt-blown fiber webs 4, 5 with two side surfaces of the wood pulp fiber web 3 containing the hot-melt adhesive substance 2, so as to form a multi-layer fiber web 6 having the melt-blown fiber webs 4, 5 at its two sides and having the wood pulp fiber web 3 containing the hot-melt adhesive substance 2 in its middle. The melt-blown fibers are polyolefin fibers, polyester fibers, polyamide fibers, polyurethane fibers, polylactic acid fibers, or a blend thereof. The blend refers to a blend of two, three, four or all five of polyolefin fibers, polyester fibers, polyamide fibers, polyurethane fibers, and polylactic acid fibers; and
  • (3) binding the fiber webs in the multi-layer fiber web 6 together using a hot air oven D and a pair of hot rolling rollers E that engage with each other, so as to form the wipe 7 having the upper and lower layers of melt-blown fiber webs 4, 5 and having the intermediate layer of the wood pulp fiber web 3 containing the hot-melt adhesive substance 2. Wherein, the melt-blown fibers of the melt-blown fiber webs 4, 5 are woven into the wood pulp fiber web 3. A weight percentage of the wood pulp fiber web 3 in the wipe 7 is greater than 50 wt %. Preferably, a weight percentage of the wood pulp fiber web 3 in the wipe 7 is 65 wt %-80 wt %.
  • As shown in FIG. 2, the present invention further discloses a wipe made using the foregoing manufacturing method. The wipe has a laminated structure. The wipe 7 comprises upper and lower layers of melt-blown fiber webs 4, 5 and an intermediate layer of a wood pulp fiber web 3 containing a hot-melt adhesive substance 2. Melt-blown fibers of the melt-blown fiber webs 4, 5 are woven into the wood pulp fiber web 3. The hot-melt adhesive substance is present in the wood pulp fiber web in an amount of 1-15 g/m2. Preferably, the hot-melt adhesive substance is present in the wood pulp fiber web in an amount of 2-5 g/m2. In this embodiment, the hot-melt adhesive substance is present in the wood pulp fiber web in an amount of 3 g/m2. The hot-melt adhesive substance 2 may be polyester fibers having a low-melting-point, ES short fibers, two-component spunbond long fibers or a blend thereof. The blend refers to a blend of two or all of polyester fibers having a low-melting-point, ES short fibers and two-component spunbond long fibers.
  • Therefore, the wipe 7 is formed by forming denser melt-blown fiber webs 4, 5 on the upper and lower layers, thereby preventing other interior fiber substances from falling out when in use, and the intermediate layer of the wood pulp fiber web 3 contains the hot-melt adhesive substance 2. In the manufacturing process, when the multi-layer fiber web 6 passes through the hot air oven and/or hot rolling rolls, the surface of the hot-melt adhesive substance 2 will begin to melt in the hot-air environment. When the hot-melt adhesive substance 2 and the fibers are in contact with each other, they will bind together to form an interwoven web structure. Thus, in a certain extent, the wood pulp short fibers of the intermediate layer are retained in the web structure, making it difficult for the wood pulp short fibers to move, so as to effectively prevent the wipe from shedding fibers when in use and to effectively prevent agglomeration of short wood pulp fibers after the wipe 7 has absorbed a liquid.

Claims (10)

What is claimed is:
1. A wipe, comprising upper and lower layers of melt-blown fiber webs and an intermediate layer of a wood pulp fiber web that contains a hot-melt adhesive substance, wherein melt-blown fibers of the melt-blown fiber webs are woven into the wood pulp fiber web.
2. The wipe of claim 1, wherein the hot-melt adhesive substance is polyester fibers having a low-melting-point, ES short fibers, two-component spunbond long fibers or a blend thereof.
3. The wipe of claim 1 or 2, wherein the hot-melt adhesive substance is present in the wood pulp fiber web in an amount of 1-15 g/m2.
4. The wipe of claim 1 or 2, wherein the hot-melt adhesive substance is present in the wood pulp fiber web in an amount of 2-5 g/m2.
5. The wipe of claim 1, wherein the melt-blown fibers are polyolefin fibers, polyester fibers, polyamide fibers, polyurethane fibers, polylactic acid fibers, or a blend thereof.
6. The wipe of claim 1, wherein a weight percentage of the wood pulp fiber web in the wipe is greater than 50 wt %.
7. The wipe of claim 1, wherein a weight percentage of the wood pulp fiber web in the wipe is 65 wt %-80 wt %.
8. A manufacturing method for the wipe of claim 1, comprising steps of:
(1) mixing wood pulp that has been opened and scattered by an opening roller with the hot-melt adhesive substance into a mixture, and blowing the mixture using a blowing nozzle in the presence of an auxiliary air stream to form the wood pulp fiber web containing the hot-melt adhesive substance;
(2) performing a melt blowing process involving heating and melting a thermoplastic resin; dispersing melt streams of the thermoplastic resin that have been extruded from spinneret plates into fiber bundles having a diameter of ≤10 μm using a high-temperature, high-speed hot air stream, thereby forming the melt-blown fiber webs in the presence of the hot air stream; and joining the melt-blown fiber webs with two side surfaces of the wood pulp fiber web containing the hot-melt adhesive substance, so as to form a multi-layer fiber web having the melt-blown fiber webs at its two sides and having the wood pulp fiber web containing the hot-melt adhesive substance in its middle; and
(3) binding the fiber webs in the multi-layer fiber web together using a heating device, so as to form the wipe having the upper and lower layers of the melt-blown fiber webs and having the intermediate layer of the wood pulp fiber web containing the hot-melt adhesive substance.
9. The manufacturing method of claim 8, wherein the hot-melt adhesive substance is polyester fibers having a low-melting-point, ES short fibers, two-component spunbond long fibers or a blend thereof.
10. The manufacturing method of claim 8, wherein the heating device is a hot air oven, a hot rolling roller or a combination thereof.
US17/262,206 2019-01-15 2019-05-17 Wipe and manufacturing method thereof Abandoned US20210301437A1 (en)

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