WO2020147230A1 - 一种擦拭巾及其制造方法 - Google Patents

一种擦拭巾及其制造方法 Download PDF

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Publication number
WO2020147230A1
WO2020147230A1 PCT/CN2019/087400 CN2019087400W WO2020147230A1 WO 2020147230 A1 WO2020147230 A1 WO 2020147230A1 CN 2019087400 W CN2019087400 W CN 2019087400W WO 2020147230 A1 WO2020147230 A1 WO 2020147230A1
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WO
WIPO (PCT)
Prior art keywords
fiber
melt
fiber web
wood pulp
wipe
Prior art date
Application number
PCT/CN2019/087400
Other languages
English (en)
French (fr)
Inventor
郑庆中
何顺新
武丹聘
谢继华
Original Assignee
厦门延江新材料股份有限公司
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 厦门延江新材料股份有限公司 filed Critical 厦门延江新材料股份有限公司
Priority to US17/262,208 priority Critical patent/US20210332512A1/en
Publication of WO2020147230A1 publication Critical patent/WO2020147230A1/zh

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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
    • 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
    • D04H1/56—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 in association with fibre formation, e.g. immediately following extrusion of staple 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
    • D04H1/40—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
    • D04H1/56—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 in association with fibre formation, e.g. immediately following extrusion of staple fibres
    • D04H1/565—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 in association with fibre formation, e.g. immediately following extrusion of staple fibres by melt-blowing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/10—Next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/08—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • 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
    • D04H1/54—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
    • 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
    • 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
    • D04H1/58—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 applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/593—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 applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives to 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
    • D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
    • D04H5/04—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by applying or incorporating chemical or thermo-activatable bonding agents in solid or liquid form
    • 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
    • D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
    • D04H5/08—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of fibres or yarns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0253—Polyolefin fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/12—Conjugate fibres, e.g. core/sheath or side-by-side
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/14—Mixture of at least two fibres made of different materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2555/00—Personal care

Definitions

  • the invention relates to the technical field of wipes, and in particular to a wipe with abrasion resistance and anti-fuzzing surface for personal care and infant care and a manufacturing method thereof.
  • Wiper wipes are very convenient to carry and store, and convenient to use, so they are popular among consumers. Wipes are often used in daily life, such as when parents change diapers for babies, or when dining in a restaurant, or when putting on make-up and skin care. It can be seen that wipes are more and more widely used in personal care and infant care.
  • the wipes can be spunlace non-woven products or spunbonded non-woven products. More traditional cloth wipes have convenient production methods, low prices, and can be used dry or wet.
  • wood pulp is often added to the wipe to improve the moisture absorption and decontamination ability of the wipe.
  • the wood pulp fibers are natural short fibers, and they are only fixed by spunbonding or spunlace processes. During use, the wood pulp short fibers are easy to fall off after multiple frictions, causing lint, and falling out affect the service life.
  • the purpose of the present invention is to provide a wipe and its manufacturing method for preventing surface fluffing and linting, and to overcome the defects of existing products and production methods.
  • a wiper the upper and lower layers of the wiper are meltblown fiber webs, and the middle layer is a wood pulp fiber web, wherein an adhesive is attached to the surface of the meltblown fiber web, and the meltblown fiber web is melted
  • the spray fibers are interspersed in the wood pulp fiber web.
  • the melt-blown fiber web consists of single-component melt-blown fibers with a high-melting-point resin on the fiber surface, melt-blown fibers with a low-melting-point resin on the fiber surface, or a blended fiber of the two.
  • the difference between the melting point of the high melting point resin and the low melting point resin is ⁇ 20°C.
  • the fiber with low melting point resin on the fiber surface is a single-component melt-blown fiber, a two-component melt-blown fiber or a blended fiber of the two.
  • the two-component melt-blown fiber is a two-component sheath-core melt-blown fiber, a two-component orange petal-type melt-blown fiber or a two-component side-by-side melt-blown fiber.
  • the adhesive is hot melt glue or solvent glue.
  • the percentage of the weight of the wood pulp fiber web to the total weight of the wipe is greater than 65%.
  • the wood pulp fiber web contains hot melt adhesive material.
  • the hot-melt adhesive material is low-melting polyester fiber, ES short fiber, two-component spunbond long fiber or a mixture thereof.
  • a method for manufacturing wipes includes the following steps:
  • thermoplastic resin is heated and melted, and the thin stream of the thermoplastic resin melt sprayed from the spinneret is blown into fiber bundles with a fiber diameter of ⁇ 10 ⁇ m using high temperature and high-speed hot air flow.
  • the airflow forms a meltblown fiber web, and it intersects with the two sides of the wood pulp fiber web to form a multi-layer structure fiber web with a meltblown fiber web on both sides and a wood pulp fiber web in the middle;
  • the multi-layer structure fiber web is consolidated by the heating device to form a wipe with the upper and lower layers of meltblown fiber web and the middle layer of wood pulp fiber web;
  • step (3) Apply the adhesive on both sides of the wipe formed in step (3) by roller coating or spraying process to form the adhesive on the surface.
  • the upper and lower layers are melt blown fiber webs, and the middle layer is wood pulp Wipes for fiber mesh.
  • the two thermoplastic resins whose melting point difference is greater than or equal to 20°C are heated and melted, and the thin stream of the thermoplastic resin melt sprayed from the spinneret is blown into fibers by using high temperature and high-speed hot air flow.
  • a fiber bundle with a diameter of ⁇ 10 ⁇ m is a melt-blown fiber web formed with hot air flow, wherein the melt-blown fiber web contains fibers with a high melting point resin on the fiber surface, fibers with a low melting point resin on the fiber surface, or a blended fiber of both.
  • the spinneret contains two-component spinneret holes.
  • the two-component spinneret holes are of the skin-core type, orange petal type or side-by-side type.
  • the heating device is a hot air oven, a hot roll or a combination of both.
  • the wood pulp is loosened and dispersed by an opening roller, mixed with the hot-melt adhesive material, and then formed into a wood pulp fiber web containing the hot-melt adhesive material through a nozzle under the action of an auxiliary airflow.
  • the wiper manufacturing method of the invention can be applied to make the wiper of the invention. Because the meltblown fiber web of the wiper of the invention has small fiber denier and dense arrangement, it effectively prevents the shortness of the intermediate wood pulp. The fall of fiber.
  • adhesive is attached to the surface of the melt-blown fiber web, forming a layer of adhesive film on the surface of the melt-blown fiber web, which prevents the surface melt-blown fiber from fuzzing and raising due to friction during use, and further prevents the middle layer of wood pulp Short fibers fall out, and the phenomenon of'hair loss' appears during use.
  • Fig. 1 is a schematic diagram of manufacturing a wipe cloth according to embodiment 1 of the present invention.
  • Figure 2 is a cross-sectional view of the wiping cloth of Example 1 of the present invention.
  • Figure 3 is a cross-sectional view of the wipes of embodiment 2 of the present invention.
  • 4A is a cross-sectional view of the sheath-core type meltblown fiber of the present invention.
  • 4B is a cross-sectional view of the two-component side-by-side meltblown fiber of the present invention.
  • 4C is a cross-sectional view of the two-component orange petal type meltblown fiber of the present invention.
  • Fig. 5 is a schematic diagram of manufacturing a wipe cloth according to embodiment 3 of the present invention.
  • Figure 6 is a cross-sectional view of the wiping cloth of Example 3 of the present invention.
  • Wood pulp fiber web 21 Melt blown fiber web 23, 24
  • Core-sheath melt blown fiber 31 two-component side-by-side melt blown fiber 32
  • Wood pulp fiber web 43 Melt blown fiber web 44, 45
  • the present invention discloses a method for manufacturing wipes, including the following steps:
  • thermoplastic resin is heated and melted, and the thermoplastic resin melt trickle sprayed from the spinnerets C1 and C1' is blown into fibers with a fiber diameter of ⁇ 10 ⁇ m using high temperature and high-speed hot air.
  • the multi-layer structured fiber web 15 is consolidated by a pair of intermeshing hot rolls E1 to form the upper and lower layers of meltblown fiber webs 13, 14, and the middle layer is wood pulp fiber web 12. Of wipes 16.
  • the roll coating process is carried out through the coating roll F1, and the adhesive is applied on both sides of the wipe 16 to form the adhesive on the surface.
  • the upper and lower layers are meltblown fiber webs 13, 14, and the middle layer is wood pulp
  • the percentage of the weight of the wood pulp fiber web 12 to the total weight of the wipe is 70%.
  • the present invention also discloses a wipe that can be made using the above-mentioned method for manufacturing wipes, which has a layered structure, and the upper and lower layers of the wipe 17 are meltblown fiber webs 13 14.
  • the middle layer is a wood pulp fiber web 12.
  • the melt blown fibers of the melt blown fiber webs 13, 14 are inserted into the wood pulp fiber web 12, and the surface of the melt blown fiber webs 13, 14 is attached with an adhesive.
  • the adhesive is hot melt glue or solvent glue.
  • a layer of adhesive film 18, 19 is formed on the surface of the meltblown fiber webs 13, 14, so that the surface meltblown fiber is prevented from fluffing and raising due to friction during use. It also further prevents the short fibers of the wood pulp in the middle layer from falling out, and the phenomenon of "fluffing" occurs during use.
  • the present invention discloses a wipe 27, which has a layered structure.
  • the upper and lower layers of the wipe are meltblown fiber webs 23 and 24, and the middle layer is wood pulp fiber web 21, wherein, Adhesives 28 and 29 are attached to the surface of the melt-blown fiber webs 23 and 24, and the melt-blown fibers of the melt-blown fiber webs 23 and 24 are inserted into the wood pulp fiber web 21; the melt-blown fiber webs 23 and 24 are formed from the fiber surface
  • the single-component melt-blown fiber 20 of high-melting resin and the melt-blown fiber 20' containing low-melting resin on the fiber surface are blended.
  • the melt blown fiber 20 ′ with a low-melting resin on the fiber surface may be a single-component melt-blown fiber, a two-component melt-blown fiber or a blended fiber of the two.
  • the two-component meltblown fiber can be a sheath-core type meltblown fiber 31, a two-component orange petal type meltblown fiber 33, or a two-component side-by-side meltblown fiber 32, and as shown in FIGS. 4A to 4C, the sheath-core type
  • the melting point of the skin layer resin 31b in the meltblown fiber 31 is lower than that of the core layer resin 31a.
  • the melting point of one of the resins 32b and 33b of the two-component orange petal type melt-blown fiber 33 and the two-component side-by-side melt-blown fiber 32 is low. It is the melting point of another resin 32a, 33a.
  • the two-component melt-blown fiber heats and melts two thermoplastic resins whose melting point difference is ⁇ 20°C, and the spinneret holes on the spinneret contain two-component spinneret holes.
  • melt-blown fiber webs 23 and 24 contain melt-blown fibers 20' with low-melting-point resin on the fiber surface, the low-melting-point resin in the melt-blown fibers is melted in a hot-air oven, causing the fibers to stick together, which increases
  • the overall strength of the wipes also makes the arrangement of meltblown fibers denser, and makes the adhesives 28, 29 attached to the surface of the meltblown fiber webs 23, 24 stronger, so as to more effectively improve the wear resistance of the wipes. There will be surface fuzzing and fuzzing.
  • the present invention discloses a method for manufacturing wipes, which includes the following steps:
  • the wood pulp 41 is loosened and dispersed by the opening roller A4, and mixed with the hot-melt adhesive material 42 to form a wood pulp fiber web containing the hot-melt adhesive material 42 through the nozzle B4 under the action of auxiliary airflow 43.
  • thermoplastic resin is heated separately, and then enters the spinning box after melting.
  • the melt of the thermoplastic resin will be sprayed from the spinnerets C4 and C4' using high temperature and high-speed hot air.
  • the thin stream is blown into fiber bundles with a fiber diameter of ⁇ 10 ⁇ m, and the melt-blown fiber web 44, 45 is formed with the hot air flow, and then the melt-blown fiber web 44, 45 is formed on the wood pulp fiber web 43 containing the hot-melt adhesive material 42
  • the two sides meet at each other to form a multi-layer structure fiber web 46 with meltblown fiber webs 44 and 45 on both sides and a wood pulp fiber web 43 containing a hot melt adhesive 42 in the middle.
  • the multi-layer structure fiber web 46 is consolidated together by a hot air oven D4 and a pair of intermeshing hot rolls E4 to form the upper and lower layers of meltblown fiber webs 44 and 45, and the middle layer contains Wipes 47 of wood pulp fiber web 43 of hot-melt adhesive material 42.
  • the upper and lower layers are meltblown fiber webs 44 and 45, and the middle layer is made of hot melt adhesive material 42. Wipes 48 of wood pulp fiber web 43.
  • the present invention also discloses a wipe that can be made by the above-mentioned method for manufacturing wipes, which has a layered structure.
  • the upper and lower layers of the wipe 47 are meltblown fiber webs 44. 45, the middle layer is a wood pulp fiber web 43, the melt blown fiber of the melt blown fiber web 44, 45 is inserted into the wood pulp fiber web 43, the surface of the melt blown fiber web 44, 45 is attached with an adhesive, the
  • the wood pulp fiber web 43 contains a hot-melt adhesive material 42, which is a low-melting polyester fiber, ES short fiber, two-component spun-bonded long fiber or a mixture thereof, and the mixture is made of Low melting point polyester fiber, ES short fiber, two-component spunbond long fiber are mixed together or optionally mixed together.
  • the melt blown fiber web 44, 45 may be melt blown fiber containing low melting point resin on the fiber surface.
  • a layer of adhesive film 49, 50 is formed on the surface of the melt-blown fiber web 44, 45, which prevents the surface melt-blown fiber from fluffing and raising due to friction during use. It also further prevents the short fibers of the wood pulp in the middle layer from falling out, and the phenomenon of "fluffing" occurs during use. And the wood pulp fiber of the middle layer is added with hot-melt adhesive material 42.
  • the surface of the hot-melt adhesive material 42 starts to melt in the hot air oven D4, which fixes the wood pulp short fibers of the middle layer to a certain extent, so that the wood pulp short fibers It is difficult to move, so as to further prevent the formed wipes from shedding during use, and increase the abrasion resistance of the wipes.

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Abstract

一种擦拭巾（16，17，27，47，48）及其制造方法，所述擦拭巾的上、下两层为熔喷纤维网（13，14，23，24，44，45），中间层为木浆纤维网（12，21，43），其中，所述熔喷纤维网表面附着有胶粘剂，所述熔喷纤网的熔喷纤维（20，20'，31，32，33）穿插于木浆纤维网中。所述制造方法可用于制造本发明的吸水擦拭巾。所述擦拭巾由于熔喷纤维网表面附着有胶粘剂，在熔喷纤维网表面形成一层胶粘剂膜（18，19，28，29，48，49），使得在使用时既阻止了表面熔喷纤维因摩擦而起毛、起绒，而且也进一步防止了中间层木浆短纤维掉出，在使用过程中出现"掉毛"现象。

Description

一种擦拭巾及其制造方法 技术领域
本发明涉及擦拭巾技术领域，尤其涉及应用于个人护理、婴幼儿护理用的一种表面耐磨、防起毛的擦拭巾及其制造方法。
背景技术
擦拭巾由于携带及收纳相当的方便，且使用便利，因此受到广大消费者的喜爱。在日常生活中常常需要用到擦拭巾，例如当父母替婴儿更换尿布时，或是餐厅用餐时，或是化妆护理皮肤时。可见，擦拭巾在个人护理、婴幼儿护理方面应用越来越广泛。
擦拭巾可以是水刺无纺布制品，也可以是纺粘无纺布制品。较传统的布类擦拭巾，其生产方法方便，价格低廉，并且干湿均可使用。为了增加擦拭巾的吸湿性能，在擦拭巾中往往会添加木浆，来提高擦拭巾的吸湿去污能力。但是木浆纤维为天然短纤维，仅通过纺粘工艺或水刺工艺进行结网固定，在使用时，多次摩擦后使得木浆短纤维容易脱落，造成掉毛现象，掉出影响使用寿命。
发明内容
本发明的目的在于提供一种防止表面起毛、掉毛的擦拭巾及其制造方法，克服现有产品及生产方法的缺陷。
为实现上述目的，本发明的解决技术方案是：
一种擦拭巾，所述擦拭巾的上、下两层为熔喷纤维网，中间层为木浆纤维网，其中，所述熔喷纤维网表面附着有胶粘剂，所述熔喷纤网的熔喷纤维穿插于木浆纤维网中。
所述熔喷纤维网由纤维表面为高熔点树脂的单组份熔喷纤维、纤维表面含有低熔点树脂的熔喷纤维或两者的共混纤维。
所述高熔点树脂和低熔点树脂的熔点之差≥20℃。
所述纤维表面含有低熔点树脂的纤维为单组份熔喷纤维、双组份熔喷纤维或两者的共混纤维。
所述双组份熔喷纤维为双组份皮芯型熔喷纤维、双组份橘瓣型熔喷纤维或双组份并列型熔喷纤维。
所述胶粘剂为热熔胶或溶剂胶。
所述木浆纤维网的重量与所述擦拭巾总重量的百分比大于65%。
所述木浆纤维网中含有热熔胶粘物质。
所述热熔胶粘物质为低熔点聚酯纤维、ES短纤维、双组份纺粘长纤维或它们的混合物。
一种擦拭巾的制造方法，包括以下步骤：
（1）木浆通过开松辊开松打散，并在辅助气流的作用下通过喷管形成木浆纤维网；
（2）采用熔喷法工艺，将热塑性树脂加热，熔融，利用高温、高速热气流将从喷丝板中喷出的热塑性树脂的溶体细流吹散成纤维直径≤10μm的纤维束，伴随热气流形成熔喷纤维网，并与木浆纤维网的两个侧面处相交汇，形成两侧为熔喷纤维网，中间为木浆纤维网的多层结构纤维网；
（3）所述多层结构纤维网通过加热装置将纤维网固结在一起，形成上、下两层为熔喷纤维网，中间层为木浆纤维网的擦拭巾；
（4）通过辊涂或喷涂工艺，将胶粘剂涂敷在步骤（3）中形成的擦拭巾的两侧，形成表面附着有胶粘剂，上、下两层为熔喷纤维网，中间层为木浆纤维网的擦拭巾。
所述步骤（2）中，分别将两种熔点之差≥20℃的热塑性树脂加热，熔融，利用高温、高速热气流将从喷丝板中喷出的热塑性树脂的溶体细流吹散成纤维直径≤10μm的纤维束，伴随热气流形成的熔喷纤维网，其中所述熔喷纤维网含有纤维表面为高熔点树脂的纤维、纤维表面含有低熔点树脂的纤维或两者的共混纤维。
所述喷丝板上含有双组份喷丝孔。
所述双组份喷丝孔为皮芯型、橘瓣型或并列型。
所述加热装置为热风烘箱、热轧辊或两者相结合。
所述步骤（1）中，木浆通过开松辊开松打散，并与热熔胶粘物质混合后在辅助气流的作用下通过喷管形成含有热熔胶粘物质的木浆纤维网。
采用上述技术方案后，可应用本发明的擦拭巾制造方法制得本发明的擦拭巾，由于本发明的擦拭巾的熔喷纤维网的纤维纤度小，排布致密，有效防止了中间木浆短纤维的掉落。并且熔喷纤维网表面附着有胶粘剂，在熔喷纤维网表面形成一层胶粘剂膜，使得在使用时既阻止了表面熔喷纤维因摩擦而起毛、起绒，而且也进一步防止了中间层木浆短纤维掉出，在使用过程中出现'掉毛'现象。
附图说明
图1为本发明实施例1的擦拭布制造示意图；
图2为本发明实施例1的擦拭布剖面图；
图3为本发明实施例2的擦拭巾剖面图；
图4A为本发明的皮芯型熔喷纤维的截面图；
图4B为本发明的双组份并列型熔喷纤维的截面图；
图4C为本发明的双组份橘瓣型熔喷纤维的截面图；
图5为本发明实施例3的擦拭布制造示意图；
图6为本发明实施例3的擦拭布剖面图。
【符号说明】
【实施例1】
木浆11木浆纤维网12
熔喷纤维网13、14多层结构纤维网15
擦拭巾16、17胶粘剂膜18、19
开松辊A1喷管B1
喷丝板C1、C1'热轧辊E1
涂布辊F1
【实施例2】
纤维表面为高熔点树脂的单组份熔喷纤维20
纤维表面含有低熔点树脂的熔喷纤维20'
木浆纤维网21熔喷纤维网23、24
擦拭巾27胶粘剂28、29
皮芯型熔喷纤维31双组份并列型熔喷纤维32
双组份橘瓣型熔喷纤维33
芯层树脂31a皮层树脂31b
其中一种树脂32b、33b
另一种树脂32a、33a
【实施例3】
木浆41热熔胶粘物质42
木浆纤维网43熔喷纤维网44、45
多层结构纤维网46
擦拭巾47、48胶粘剂膜48、49
开松辊A4喷管B4
喷丝板C4、C4'热风烘箱D4
热轧辊E4喷涂装置F4。
具体实施方式
为了进一步解释本发明的技术方案，下面通过具体实施例来对本发明进行详细阐述。
实施例1
如图1所示，本发明揭示了一种擦拭巾的制造方法，包括下列步骤：
（1）将木浆11通过开松辊A1开松打散，并在辅助气流的作用下通过喷管B1形成木浆纤维网12。
（2）采用熔喷法工艺，将热塑性树脂加热，熔融，利用高温、高速热气流将从喷丝板C1、C1'中喷出的热塑性树脂的溶体细流吹散成纤维直径≤10μm的纤维束，伴随热气流形成的熔喷纤维网13、14，并与木浆纤维网12的两个侧面处相交汇，形成两侧为熔喷纤维网13、14，中间为木浆纤维网12的多层结构纤维网15，其中，所述熔喷纤维网13、14由纤维表面为高熔点树脂的单组份熔喷纤维组成。
（3）所述多层结构纤维网15通过一对啮合的热轧辊E1将纤维网固结在一起，形成上、下两层为熔喷纤维网13、14，中间层为木浆纤维网12的擦拭巾16。
（4）通过涂布辊F1进行辊涂工艺，将胶粘剂涂敷在擦拭巾16的两侧，形成表面附着有胶粘剂，上、下两层为熔喷纤维网13、14，中间层为木浆纤维网12的擦拭巾17，木浆纤维网12的重量与所述擦拭巾总重量的百分比为70%。
如图2所示，本发明还揭示了一种可应用上述擦拭巾的制造方法制成的擦拭巾，其为层状结构，所述擦拭巾17的上、下两层为熔喷纤维网13、14，中间层为木浆纤维网12，所述熔喷纤维网13、14的熔喷纤维穿插于木浆纤维网12中，所述熔喷纤维网13、14表面附着有胶粘剂，所述胶粘剂为热熔胶或溶剂胶。
因此，由于熔喷纤维网13、14表面附着有胶粘剂，在熔喷纤维网13、14表面形成一层胶粘剂膜18、19，使得在使用时既阻止了表面熔喷纤维因摩擦而起毛、起绒，而且也进一步防止了中间层木浆短纤维掉出，在使用过程中出现'掉毛'现象。
实施例2
如图3所示，本发明揭示了一种擦拭巾27，其为层状结构，擦拭巾的上、下两层为熔喷纤维网23、24，中间层为木浆纤维网21，其中，所述熔喷纤维网23、24表面附着有胶粘剂28、29，所述熔喷纤维网23、24的熔喷纤维穿插于木浆纤维网21中；熔喷纤维网23、24由纤维表面为高熔点树脂的单组份熔喷纤维20、纤维表面含有低熔点树脂的熔喷纤维20'共混组成。纤维表面含有低熔点树脂的熔喷纤维20'可以为单组份熔喷纤维、双组份熔喷纤维或两者的共混纤维。双组份熔喷纤维可以为皮芯型熔喷纤维31、双组份橘瓣型熔喷纤维33或双组份并列型熔喷纤维32，且如图4A至图4C所示，皮芯型熔喷纤维31中皮层树脂31b的熔点低于芯层树脂31a的熔点，双组份橘瓣型熔喷纤维33、双组份并列型熔喷纤维32的其中一种树脂32b、33b的熔点低于另一种树脂32a、33a的熔点。该双组份熔喷纤维是将两种熔点之差≥20℃的热塑性树脂加热，熔融，并且喷丝板上的喷丝孔含有双组份喷丝孔。
因此，由于熔喷纤维网23、24含有纤维表面含有低熔点树脂的熔喷纤维20'，该熔喷纤维中的低熔点树脂在热风烘箱中熔融，使得纤维之间会粘连在一起，既增加了擦拭巾的整体强度，也使得熔喷纤维排列更加致密，并且使得熔喷纤维网23、24表面附着的胶粘剂28、29结合力更强，从而更加有效的提高擦拭巾的耐磨性，不会出现表面起毛、起绒现象。
实施例3
如图5所示，本发明揭示了一种擦拭巾的制造方法，包括下列步骤：
（1）将木浆41通过开松辊A4开松打散，并与热熔胶粘物质42混合后在辅助气流的作用下通过喷管B4形成含有热熔胶粘物质42的木浆纤维网43。
（2）采用熔喷法工艺，将热塑性树脂分别加热，熔融后进入纺丝箱，在纺丝箱内利用高温、高速热气流将从喷丝板C4、C4'中喷出的热塑性树脂的溶体细流吹散成纤维直径≤10μm的纤维束，伴随热气流形成熔喷纤维网44、45，然后形成的熔喷纤维网44、45在含有热熔胶粘物质42的木浆纤维网43的两个侧面处相交汇，形成两侧是熔喷纤维网44、45，中间为含有热熔胶粘物质42的木浆纤维网43的多层结构纤维网46。
（3）所述多层结构纤维网46通过热风烘箱D4、一对啮合的热轧辊E4将纤维网固结在一起，形成上、下两层为熔喷纤维网44、45，中间层为含有热熔胶粘物质42的木浆纤维网43的擦拭巾47。
（4）通过喷涂装置F4，将胶粘剂喷涂在擦拭巾47的两侧，形成表面附着有胶粘剂，上、下两层为熔喷纤维网44、45，中间层为含有热熔胶粘物质42的木浆纤维网43的擦拭巾48。
如图6所示，本发明还揭示了一种可应用上述擦拭巾的制造方法制成的擦拭巾，其为层状结构，所述擦拭巾47的上、下两层为熔喷纤维网44、45，中间层为木浆纤维网43，所述熔喷纤维网44、45的熔喷纤维穿插于木浆纤维网43中，所述熔喷纤维网44、45表面附着有胶粘剂，所述木浆纤维网43中含有热熔胶粘物质42，所述热熔胶粘物质42为低熔点聚酯纤维、ES短纤维、双组份纺粘长纤维或它们的混合物，它们的混合物是由低熔点聚酯纤维、ES短纤维、双组份纺粘长纤维一起混合或者任选两种混合而成，所述熔喷纤维网44、45可以为纤维表面含有低熔点树脂的熔喷纤维。
因此，由于熔喷纤维网44、45表面附着有胶粘剂，在熔喷纤维网44、45表面形成一层胶粘剂膜49、50，使得在使用时既阻止了表面熔喷纤维因摩擦而起毛、起绒，而且也进一步防止了中间层木浆短纤维掉出，在使用过程中出现'掉毛'现象。并且中间层的木浆纤维添加有热熔胶粘物质42，在热风烘箱D4中热熔胶粘物质42表面开始熔融，在一定程度上将中间层的木浆短纤维固定，使得木浆短纤难以移动，从而进一步防止所形成的擦拭巾在使用时不会出现'掉毛'的现象，增加擦拭巾的耐磨性。

Claims (16)

  1. 一种擦拭巾，其特征在于：所述擦拭巾的上、下两层为熔喷纤维网，中间层为木浆纤维网，其中，所述熔喷纤维网表面附着有胶粘剂，所述熔喷纤网的熔喷纤维穿插于木浆纤维网中。
  2. 如权利要求1所述一种擦拭巾，其特征在于：所述熔喷纤维网由纤维表面为高熔点树脂的单组份熔喷纤维、纤维表面含有低熔点树脂的熔喷纤维或两者的共混纤维。
  3. 如权利要求2所述一种擦拭巾，其特征在于：所述高熔点树脂和低熔点树脂的熔点之差≥20℃。
  4. 如权利要求2所述一种擦拭巾，其特征在于：所述纤维表面含有低熔点树脂的纤维为单组份熔喷纤维、双组份熔喷纤维或两者的共混纤维。
  5. 如权利要求4所述一种擦拭巾，其特征在于：所述双组份熔喷纤维为双组份皮芯型熔喷纤维、双组份橘瓣型熔喷纤维或双组份并列型熔喷纤维。
  6. 如权利要求1所述一种擦拭巾，其特征在于：所述胶粘剂为热熔胶或溶剂胶。
  7. 如权利要求1所述一种擦拭巾，其特征在于：所述木浆纤维网的重量与所述擦拭巾总重量的百分比大于50%。
  8. 如权利要求1所述一种擦拭巾，其特征在于：所述木浆纤维网的重量与所述擦拭巾总重量的百分比为65%～80%。
  9. 如权利要求1所述一种擦拭巾，其特征在于：所述木浆纤维网中含有热熔胶粘物质。
  10. 如权利要求9所述一种擦拭巾，其特征在于：所述热熔胶粘物质为低熔点聚酯纤维、ES短纤维、双组份纺粘长纤维或它们的混合物。
  11. 一种如权利要求1所述擦拭巾的制造方法，其特征在于，包括以下步骤：
    （1）木浆通过开松辊开松打散，并在辅助气流的作用下通过喷管形成木浆纤维网；
    （2）采用熔喷法工艺，将热塑性树脂加热，熔融，利用高温、高速热气流将从喷丝板中喷出的热塑性树脂的溶体细流吹散成纤维束，纤维直径小于10um，伴随热气流形成熔喷纤维网，并与木浆纤维网的两个侧面处相交汇，形成两侧为熔喷纤维网，中间为木浆纤维网的多层结构纤维网；
    （3）所述多层结构纤维网通过加热装置将纤维网固结在一起，形成上、下两层为熔喷纤维网，中间层为木浆纤维网的擦拭巾；
    （4）通过辊涂或喷涂工艺，将胶粘剂涂敷在步骤（3）中形成的擦拭巾的两侧，形成表面附着有胶粘剂，上、下两层为熔喷纤维网，中间层为木浆纤维网的擦拭巾。
  12. 如权利要求11所述一种擦拭巾的制造方法，其特征在于：所述步骤（2）中，分别将两种熔点之差≥20℃的热塑性树脂加热，熔融，利用高温、高速热气流将从喷丝板中喷出的热塑性树脂的溶体细流吹散成纤维直径≤10μm的纤维束，伴随热气流形成的熔喷纤维网，其中所述熔喷纤维网含有纤维表面为高熔点树脂的纤维、纤维表面含有低熔点树脂的纤维或两者的共混纤维。
  13. 如权利要求11所述一种耐磨擦拭巾的制造方法，其特征在于：所述喷丝板上含有双组份喷丝孔。
  14. 如权利要求11所述一种耐磨擦拭巾的制造方法，其特征在于：所述双组份喷丝孔为皮芯型、橘瓣型或并列型。
  15. 如权利要求11所述一种耐磨擦拭巾的制造方法，其特征在于：所述加热装置为热风烘箱、热轧辊或两者相结合。
  16. 如权利要求11所述一种擦拭巾的制造方法，其特征在于：所述步骤（1）中，木浆通过开松辊开松打散，并与热熔胶粘物质混合后在辅助气流的作用下通过喷管形成含有热熔胶粘物质的木浆纤维网。
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