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WO2020147228A1 - 一种耐磨擦拭巾及其制造方法 - Google Patents

一种耐磨擦拭巾及其制造方法 Download PDF

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Publication number
WO2020147228A1
WO2020147228A1 PCT/CN2019/087396 CN2019087396W WO2020147228A1 WO 2020147228 A1 WO2020147228 A1 WO 2020147228A1 CN 2019087396 W CN2019087396 W CN 2019087396W WO 2020147228 A1 WO2020147228 A1 WO 2020147228A1
Authority
WO
WIPO (PCT)
Prior art keywords
fiber
melt
blown
wear
fiber web
Prior art date
Application number
PCT/CN2019/087396
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 US17/267,848 priority Critical patent/US20210172103A1/en
Priority to PL19910058.7T priority patent/PL3913125T3/pl
Priority to ES19910058T priority patent/ES2965296T3/es
Priority to EP19910058.7A priority patent/EP3913125B1/en
Publication of WO2020147228A1 publication Critical patent/WO2020147228A1/zh
Priority to US18/217,638 priority patent/US20230340708A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
    • A47K10/02—Towels
    • 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
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    • 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
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    • 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
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    • D01D5/0985—Melt spinning methods with simultaneous stretching by means of a flowing gas (e.g. melt-blowing)
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • D01D5/30—Conjugate filaments; Spinnerette packs therefor

Definitions

  • the invention relates to the technical field of wipes, in particular to a wear-resistant wipe with abrasion-resistant surface and anti-fuzzing used in 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.
  • Cigar invention patent application number 93118457.6 discloses a wear-resistant fiber non-woven composite structure, which is composed of the following two components (1) a meltblown fiber matrix with a first outer surface, a second outer surface and an inner part, and (2) At least one is incorporated into the matrix of meltblown fibers so that the concentration of meltblown fibers near each outer surface of the nonwoven structure is at least about 60% by weight, and the concentration of meltblown fibers in the inner part is less than about 40%. % (Weight) of other fiber materials.
  • This wipe provides useful strength and low lint characteristics and abrasion resistance that is at least about 25% greater than the abrasion resistance of a homogeneous mixture of the same fraction.
  • the meltblown layer formed by the meltblown fibers on the surface of the wipe is denser, which prevents other fiber materials from falling out during use to a certain extent, but the meltblown fibers are mostly formed by thermoplastic resins with higher melting points.
  • the melt-blown fiber is melted at a high temperature after passing through a hot roller, and then a hot-rolling point is formed under a certain pressure to consolidate the melt-blown fiber together.
  • the melt-blown fiber without adhesion is easy to fluff, which affects the compactness of the surface layer and makes the other layers of the middle layer.
  • the fiber falling out affects the service life.
  • the purpose of the present invention is to provide a wear-resistant and anti-fuzzing wear-resistant wipe and a manufacturing method thereof, which overcomes the defects of existing products and production methods.
  • a wear-resistant wipe The upper and lower layers of the wear-resistant wipe are melt-blown fiber webs, and the middle layer is a wood pulp fiber web, wherein the melt-blown fiber web contains a melted fiber surface with a high melting point resin.
  • the number percentage of the total fibers of the fiber-blown web is greater than 5%, and the melt-blown fibers of the melt-blown fiber web are interspersed with wood pulp fibers.
  • the melt blown fiber containing low melting point resin on the fiber surface is a single component low melting point melt blown fiber, a two component melt blown fiber or a mixture 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 percentage of the melt blown fiber containing low melting point resin on the fiber surface to the total fiber of the melt blown fiber web is 30% to 70%.
  • the weight of the wood pulp fiber web accounts for more than 50% of the total weight of the wear-resistant wipe.
  • the weight of the wood pulp fiber web accounts for 65%-80% of the total weight of the wear-resistant wipe.
  • the wood pulp fiber web contains a hot melt adhesive substance.
  • a method for manufacturing wear-resistant wipes includes the following steps:
  • thermoplastic resins with a melting point difference of ⁇ 20°C are separately heated, and then melted into the spinning box, where high temperature and high-speed hot air flow will be ejected from the spinneret.
  • the melt-blown stream of the thermoplastic resin is blown into fiber bundles with a fiber diameter of ⁇ 10 ⁇ m, thereby forming a melt-blown fiber web with hot air flow, wherein the melt-blown fiber contains melt-blown fibers with a high melting point resin on the fiber surface and the fiber surface Melt blown fiber containing low melting point resin, and the percentage of the number of melt blown fibers containing low melting point resin on the fiber surface to the total fiber of the melt blown fiber web is greater than 5%, and then the melt blown fiber web formed is in the wood pulp fiber
  • the two sides of the net intersect to form a multi-layer structure fiber net with melt blown fiber net on both sides and wood pulp fiber net in the middle;
  • the multi-layer structure fiber web is consolidated together by a heating device to form the upper and lower layers of melt blown fibers containing high melting point resin on the fiber surface and melt blown fibers containing low melting point resin on the fiber surface Melt-blown fiber web, the middle layer is a wear-resistant wipe with wood pulp fiber web.
  • the spinneret contains two-component spinneret holes.
  • the two-component spinneret holes on the spinneret are of 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 passes through the opening roller to loosen it, and mix with the hot-melt adhesive material to form wood pulp containing the hot-melt adhesive material through the nozzle under the action of the auxiliary airflow. Fiber web.
  • the wear-resistant wipe manufacturing method of the present invention can be used to prepare the wear-resistant wipes of the present invention, because the melt-blown fiber web of the wear-resistant wipes of the present invention contains melt-blown fibers whose surface is a high melting point resin.
  • the fiber and fiber surface contain low-melting resin melt-blown fiber, and the fiber surface contains low-melting resin melt-blown fiber and the total fiber of the melt-blown fiber web is greater than 5%.
  • the fiber surface The meltblown fiber containing low-melting resin melts in the heating device with the low-melting resin on the fiber surface, causing the fibers to stick together, which not only increases the overall strength of the wipe, but also increases the abrasion resistance of the wipe.
  • Figure 1 is a schematic diagram of the manufacture of the wear-resistant wipes in Example 1 of the present invention.
  • Figure 2 is a cross-sectional view of the wear-resistant wipe of embodiment 1 of the present invention.
  • Figure 3 is a schematic diagram of the manufacture of the wear-resistant wipes in Example 2 of the present invention.
  • Figure 4 is a cross-sectional view of the wear-resistant wipe of embodiment 2 of the present invention.
  • Figure 5A is a cross-sectional view of the sheath-core meltblown fiber of the present invention.
  • 5B is a cross-sectional view of the two-component side-by-side meltblown fiber of the present invention.
  • 5C is a cross-sectional view of the two-component orange petal type meltblown fiber of the present invention.
  • Figure 6 is a schematic view of the manufacture of the wear-resistant wipes of Example 3 of the present invention.
  • Fig. 7 is a cross-sectional view of a wear-resistant wipe of Example 3 of the present invention.
  • Multilayer structure fiber mesh 15 Wear-resistant wipes 16
  • Multilayer structure fiber mesh 25 Wear-resistant wipes 26
  • Sheath core type melt blown fiber 27 two-component side-by-side melt blown fiber 28
  • Multilayer structure fiber mesh 36 Wear-resistant wipes 37
  • the present invention discloses a method for manufacturing wear-resistant wipes, including the following steps:
  • the high melting point thermoplastic resin such as polypropylene PP
  • the low melting point thermoplastic resin such as high density polyethylene HDPE
  • the thermoplastic resin melt jets sprayed from the spinnerets C1 and C1' are blown into fiber bundles with a fiber diameter of ⁇ 10 ⁇ m, thereby forming melt-blown fiber webs 13, 14 with the hot air flow.
  • the melt-blown fiber webs 13, 14 include melt-blown fibers formed of a high-melting thermoplastic resin PP whose fiber surface is a high-melting resin and a single-component melt-blown fiber formed of a low-melting thermoplastic resin HDPE whose surface contains a low-melting resin Fiber, ie, single-component low-melting melt-blown fiber, and the single-component melt-blown fiber containing low-melting resin on the fiber surface is 40% of the total fiber of the melt-blown fiber web 13, 14, the high melting point
  • the difference between the melting point of the resin and the melting point of the low-melting resin is ⁇ 20°C, and then the meltblown fiber webs 13, 14 formed meet at the two sides of the wood pulp fiber web 12, forming a meltblown fiber web 13, 14 on both sides. 14.
  • In the middle is a multi-layer structure fiber web 15 of wood pulp fiber web 12.
  • the multi-layer structure fiber web 15 is consolidated by the hot air oven D1 to form a wipe 16 with the upper and lower layers of meltblown fiber webs 13, 14, and the middle layer of wood pulp fiber web 13 .
  • the present invention also discloses a wear-resistant wipe that can be made by the above-mentioned method for manufacturing wear-resistant wipes, which has a layered structure, and the upper and lower layers of the wear-resistant wipe 16 Are melt-blown fiber webs 13, 14, and the middle layer is wood pulp fiber web 12.
  • the melt-blown fiber webs 13 and 14 contain high-melting thermoplastic resin PP.
  • the surface of the fiber formed by the thermoplastic resin HDPE contains a single-component melt-blown fiber with a low-melting resin, the difference between the melting point of the high-melting resin and the melting point of the low-melting resin is ⁇ 20°C, and the fiber surface contains a single-component melt-blown fiber with a low-melting resin
  • the percentage of the number of fibers to the total fibers of the meltblown fiber webs 13 and 14 is 40%, and the meltblown fibers of the meltblown fiber webs 13 and 14 are inserted into the wood pulp fiber web 12.
  • Standard bedding standard felt with a square meter weight of 750 ⁇ 50g/m 2 , a thickness of 3 ⁇ 0.5mm and a diameter of 140mm.
  • the back material of the sample a polyurethane foam with a thickness of 3 ⁇ 0.5mm, a density of 0.04g/cm 3 and a diameter of 38 ⁇ 2mm.
  • Sampler A disc sampler with a sampling diameter of 140mm, used to sample the lower abrasive with a size of ⁇ 140mm.
  • Sampler A disc sampler with a sampling diameter of 38mm, used to sample upper abrasives with a size of ⁇ 38mm.
  • Sample pretreatment place the test sample at room temperature for 24 hours.
  • Abrasion resistance judgment Refer to the abrasion resistance rating picture to confirm the degree of abrasion resistance.
  • the wear-resistant wipe 16 of the present invention contains single-component melt-blown fibers with low-melting resin on the fiber surface, and single-component melt-blown fiber with low-melting resin on the fiber surface.
  • the percentage of the total number of fibers and the total fibers of the meltblown fiber webs 13, 14 is 40%.
  • the single-component meltblown fibers of melting resin are blended together, and when the meltblown fiber webs 13, 14 and wood pulp fiber web 12 pass through the hot air oven D1, under the action of hot air, the fibers in the meltblown fiber webs 13, 14
  • the surface of the single-component melt-blown fiber containing a low-melting resin on the surface begins to melt, causing the melt-blown fibers to stick together, thereby consolidating the multi-layer structure fiber web 15 together to form the wear-resistant wipe 16, so that both The overall strength of the wipes is increased, and the abrasion resistance of the wipes is increased, so that during the wiping process, there will be no surface fluffing and fuzzing.
  • the fiber density of the meltblown fiber webs 13 and 14 is small and the arrangement It is dense, and the fibers are adhered to each other, which prevents the short fibers of wood pulp in the middle layer from falling.
  • the present invention discloses a method for manufacturing wear-resistant wipes, including the following steps:
  • the high melting point thermoplastic resin and the low melting point thermoplastic resin are heated separately, and enter the spinning box after melting.
  • the high temperature and high-speed hot air will be used to remove the spinnerets C2 and C2'
  • the sprayed thermoplastic resin melt trickle is blown into fiber bundles with a fiber diameter of ⁇ 10 ⁇ m, thereby forming melt blown fiber webs 23 and 24 with hot air flow, wherein the spinneret holes on the spinnerets C2 and C2' contain Two-component spinneret holes, the two-component spinneret holes on the spinnerets C2, C2' are skin-core, orange-petal or side-by-side, and pass through the meltblown fiber mesh 23, 24.
  • the two-component meltblown fiber can be a core-sheath melt.
  • meltblown fiber webs 23, 24 intersect at the two sides of the wood pulp fiber web 22 to form a meltblown fiber web 23, 24 containing two-component meltblown fibers on both sides, and a wood pulp fiber web in the middle. 22 of the multi-layer structure fiber web 25.
  • the multi-layer structure fiber web 25 is consolidated by a pair of intermeshing hot rolls E2 to form the upper and lower layers of meltblown fiber webs 23 and 24 containing two-component meltblown fibers.
  • the middle layer is a wear-resistant wipe 26 of wood pulp fiber web 22.
  • the present invention also discloses a wear-resistant wipe that can be made by applying the above-mentioned method for manufacturing wear-resistant wipes, which has a layered structure, and the upper and lower layers of the wear-resistant wipe 26 Are melt-blown fiber webs 23, 24, the middle layer is wood pulp fiber web 22, the melt-blown fiber webs 23, 24 contain melt-blown fibers with high-melting resin on the fiber surface and two-component melt-blown fibers with low-melting resin on the fiber surface.
  • the difference between the melting point of the high-melting resin and the melting point of the low-melting resin is ⁇ 20°C
  • the two-component melt-blown fiber containing low-melting resin on the fiber surface may be a two-component sheath-core melt-blown fiber 27, Two-component orange petal type melt-blown fiber 28 or two-component side-by-side melt-blown fiber 29, the percentage of the number of two-component melt-blown fiber and the total fiber of the melt-blown fiber web 23, 24 is 50%, and the melt The meltblown fibers of the spray fiber webs 23 and 24 are inserted into the wood pulp fiber web 22.
  • the melt-blown fiber with high melting point resin on the fiber surface and the two-component melt blown fiber with low melting point resin on the fiber surface can be formed.
  • the hot-rolled area can form a molten hot-rolled spot under the action of the hot-rolling pressure, rather than hot-rolled Due to the effect of temperature in the area, the low-melting resin on the surface of the two-component melt-blown fiber in the melt-blown fiber webs 13, 14 starts to melt, causing the melt-blown fibers to stick together, thereby consolidating the multilayer structure fiber web 25
  • the wear-resistant wipes 26 are formed together, which not only increases the wear-resistant performance of the wipes, so that there will be no surface fluffing and lint during the wiping process; at the same time, it also increases the overall strength of the wipes. Conducive to multiple wipes.
  • the present invention discloses a method for manufacturing wear-resistant wipes, including the following steps:
  • the wood pulp 31 is loosened and dispersed by the opening roller A3, and mixed with the hot-melt adhesive material 32, and then forms a wood pulp fiber web 33 containing the hot-melt adhesive material through the nozzle B3 under the action of auxiliary airflow.
  • thermoplastic resin melt stream is blown into fiber bundles with a fiber diameter of ⁇ 10 ⁇ m, and the melt-blown fiber webs 34, 35 are formed with hot air flow, wherein the melt-blown fiber webs 34, 35 include fiber surfaces with high melting points.
  • the quantity percentage of the meltblown fiber containing low melting point resin and the total fiber of the meltblown fiber webs 34 and 35 is 20%, and the difference between the melting point of the low melting point resin and the melting point of the high melting point resin is ⁇ 20°C;
  • the sprayed fiber webs 34, 35 intersect at the two sides of the wood pulp fiber web 33 containing hot-melt adhesives to form melt-blown fiber webs 34, 35 on both sides, and wood pulp containing hot-melt adhesives in the middle.
  • the multi-layer fiber web 36 is consolidated by a hot-air oven D3 and a pair of intermeshing hot rolls E3 to form an upper and a lower layer containing single-component low-melting melt-blown fibers and two-component
  • the meltblown fiber webs 34 and 35 are meltblown fibers
  • the middle layer is a wear-resistant wipe 37 of the wood pulp fiber web 33 containing the hot melt adhesive material 32.
  • the present invention also discloses a wear-resistant wipe that can be made by the above-mentioned method for manufacturing wear-resistant wipes, which has a layered structure.
  • the upper and lower layers of the wear-resistant wipe 37 Are melt-blown fiber webs 34, 35, the middle layer is a wood pulp fiber web 33 containing a hot-melt adhesive material 32, the melt-blown fiber webs 34, 35 include melt-blown fibers with a high melting point resin on the fiber surface and a fiber surface containing Single-component melt-blown fiber of low-melting resin, the difference between the melting point of the high-melting resin and the melting point of the low-melting resin is ⁇ 20°C, the single-component melt-blown fiber can be a single-component low-melting melt-blown fiber and Two-component melt-blown fiber, and the single-component low-melting-point melt-blown fiber and the total fiber of the melt-blown fiber web 34, 35 have a quantity percentage of 20%, and the melt-blown fiber of the melt
  • the hot-melt adhesive material 32 is added to the wood pulp fiber web 33 of the middle layer, the surface of the hot-melt adhesive material 32 starts to melt in the hot air oven D3, which reduces the wood pulp in the middle layer to a certain extent.
  • the fiber fixation makes it difficult for the wood pulp short fibers to move, thereby preventing the formed wipes from shedding during use, thereby reducing the surface fluffing of the wipes and increasing the wear resistance.

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Abstract

一种耐磨擦拭巾（16、26、37）及其制造方法，耐磨擦拭巾（16、26、37）的上、下两层为熔喷纤维网（13、14、23、24、34、35），中间层为木浆纤维网（12、22、33），其中，熔喷纤维网（13、14、23、24、34、35）含有纤维表面为高熔点树脂的熔喷纤维和纤维表面含有低熔点树脂的熔喷纤维，低熔点树脂的熔点与高熔点树脂的熔点之差≥20℃，且纤维表面含有低熔点树脂的熔喷纤维与熔喷纤维网（13、14、23、24、34、35）的总纤维的数量百分比大于5％，熔喷纤维网（13、14、23、24、34、35）的熔喷纤维穿插于木浆纤维网（12、22、33）中。

Description

一种耐磨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、防起毛的耐磨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。
中国发明专利申请号为93118457.6公开了一种耐磨纤维无纺织复合结构物，它由下列两组份组成(1）具有第一外表面、第二外表面和里部的熔喷纤维基体，和（2）至少一种结合进熔喷纤维基体中使熔喷纤维在无纺织结构的每个外表面附近的浓度至少为约60%（重量），且熔喷纤维在里部的浓度小于约40%（重量）的其它纤维材料。这种擦拭布提供了有用的强度和低掉绒特性以及比相同级分的均匀混合物耐磨性大至少约25%的耐磨性。该擦拭布通过表面的熔喷纤维形成的熔喷层较致密，从而在一定程度上防止了里部其他纤维材料在使用过程中掉落出来，但是熔喷纤维多为熔点较高的热塑性树脂形成，在形成固结的熔喷层时，主要是通过热轧辊后在高温下将熔喷纤维熔融后，再在一定压力作用下形成热轧点，从而将熔喷纤维固结在一起，由于热轧点之外的其余部位的熔喷纤维之间是没有粘连的，所以在使用时，多次摩擦后使得没有粘连的熔喷纤维容易起毛，影响表面层的致密性，从而使得中间层的其他纤维掉出影响使用寿命。
发明内容
本发明的目的在于提供一种耐磨与防止起毛的耐磨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为：
一种耐磨擦拭巾，所述耐磨擦拭巾的上、下两层为熔喷纤维网，中间层为木浆纤维网，其中，所述熔喷纤维网含有纤维表面为高熔点树脂的熔喷纤维和纤维表面含有低熔点树脂的熔喷纤维，所述低熔点树脂的熔点与高熔点树脂的熔点之差≥20℃，且所述纤维表面含有低熔点树脂的熔喷纤维与所述熔喷纤维网的总纤维的数量百分比大于5%，所述熔喷纤维网的熔喷纤维有穿插于木浆纤维中。
所述纤维表面含有低熔点树脂的熔喷纤维为单组份低熔点熔喷纤维、双组份熔喷纤维或两者相混合。
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。
所述纤维表面含有低熔点树脂的熔喷纤维与所述熔喷纤维网的总纤维的数量百分比为30%～70%。
所述木浆纤维网的重量占耐磨擦拭巾总重量的百分比大于50%。
所述木浆纤维网的重量占耐磨擦拭巾总重量的百分比为65%-80%。
所述木浆纤维网含有热熔胶粘物质。
一种耐磨擦拭巾的制造方法，包括下列步骤：
（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，将两种熔点之差≥20℃的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，从而伴随热气流形成熔喷纤维网，其中，所述熔喷纤维中含有纤维表面为高熔点树脂的熔喷纤维和纤维表面含有低熔点树脂的熔喷纤维，且所述纤维表面含有低熔点树脂的熔喷纤维与所述熔喷纤维网的总纤维的数量百分比大于5%，然后形成的熔喷纤维网在木浆纤维网的两个侧面处相交汇，形成两侧是熔喷纤维网，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、下两层为含有纤维表面为高熔点树脂的熔喷纤维和纤维表面含有低熔点树脂的熔喷纤维的熔喷纤维网，中间层为木浆纤维网的耐磨擦拭巾。
所述喷丝板上含有双组份喷丝孔。
所述喷丝板上的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，将其开松打散，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，可应用本发明的耐磨擦拭巾制造方法制得本发明的耐磨擦拭巾，由于本发明的耐磨擦拭巾的熔喷纤维网含有纤维表面为高熔点树脂的熔喷纤维和纤维表面含有低熔点树脂的熔喷纤维，且所述纤维表面含有低熔点树脂的熔喷纤维与所述熔喷纤维网的总纤维的数量百分比大于5%，在制造过程中，纤维表面含有低熔点树脂的熔喷纤维在加热装置中纤维表面低熔点树脂熔融，使得纤维之间会粘连在一起，既增加了擦拭巾的整体强度，又增加了擦拭巾的耐磨擦性能，使得在擦拭过程中，不会出现表面起毛、起绒现象；同时熔喷纤维层的纤维纤度小，排布致密，且纤维之间有相互粘连，更加防止了中间层木浆短纤维的掉落。
附图说明
图1为本发明实施例1中耐磨擦拭巾的制造示意图；
图2为本发明实施例1的耐磨擦拭巾的剖面图；
图3为本发明实施例2中耐磨擦拭巾的制造示意图；
图4为本发明实施例2的耐磨擦拭巾的剖面图；
图5A为本发明的皮芯型熔喷纤维的截面图；
图5B为本发明的双组份并列型熔喷纤维的截面图；
图5C为本发明的双组份橘瓣型熔喷纤维的截面图；
图6为本发明实施例3的耐磨擦拭巾的制造示意图；
图7为本发明实例例3的耐磨擦拭巾的剖面图。
【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耐磨擦拭巾16
开松辊A1喷管B1
喷丝板C1、C1'
【实施例2】
木浆21木浆纤维网22
熔喷纤维网23、24
多层结构纤维网25耐磨擦拭巾26
开松辊A2喷管B2
喷丝板C2、C2'热轧辊E2
皮芯型熔喷纤维27双组份并列型熔喷纤维28
双组份橘瓣型熔喷纤维29
芯层树脂27a皮层树脂27b
其中一种树脂28b、29b
另一种树脂28a、29a
【实施例3】
木浆31热熔胶粘物质32
木浆纤维网33
熔喷纤维网34、35
多层结构纤维网36耐磨擦拭巾37
开松辊A3喷管B3
喷丝板C3、C3'热风烘箱D3
热轧辊E3。
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，本发明揭示了一种耐磨擦拭巾的制造方法，包括下列步骤：
（1）木浆11通过开松辊A1开松打散后，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，将高熔点热塑性树脂（如：聚丙烯PP）和低熔点热塑性树脂（如：高密度聚乙烯HDPE）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，从而伴随热气流形成熔喷纤维网13、14，其中，所述熔喷纤维网13、14包含由高熔点热塑性树脂PP形成的纤维表面为高熔点树脂的熔喷纤维和由低熔点热塑性树脂HDPE形成的纤维表面含有低熔点树脂的单组份熔喷纤维，即单组份低熔点熔喷纤维，并且纤维表面含有低熔点树脂的单组份熔喷纤维与所述熔喷纤维网13、14的总纤维的数量百分比为40%，所述高熔点树脂的熔点与低熔点树脂的熔点之差≥20℃，；然后形成的熔喷纤维网13、14在木浆纤维网12的两个侧面处相交汇，形成两侧是熔喷纤维网13、14，中间为木浆纤维网12的多层结构纤维网15。
（3）所述多层结构纤维网15通过热风烘箱D1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13的擦拭巾16。
如图2所示，本发明还揭示了一种可应用上述耐磨擦拭巾的制造方法制成的耐磨擦拭巾，其为层状结构，所述耐磨擦拭巾16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包含由高熔点热塑性树脂PP形成的纤维表面为高熔点树脂的熔喷纤维和由低熔点热塑性树脂HDPE形成的纤维表面含有低熔点树脂的单组份熔喷纤维，所述高熔点树脂的熔点与低熔点树脂的熔点之差≥20℃，纤维表面含有低熔点树脂的单组份熔喷纤维与所述熔喷纤维网13、14的总纤维的数量百分比为40%，所述熔喷纤维网13、14的熔喷纤维穿插于木浆纤维网12中。
耐磨性检测
参照标准GB/T13775-92《棉、麻、绢丝机织物耐磨试验方法》
检测仪器：YG(B)401E型马丁代尔耐磨仪
测试使用材料：
标准垫料：平方米重量为750±50g/m2,厚度为3±0.5mm，直径为140mm的标准毡。
试样背面材料：厚度为3±0.5mm，密度为0.04g/cm3,直径为38±2mm的聚氨酯泡沫塑料。
取样器：取样直径140mm的圆盘取样器，用于取样尺寸为φ140mm的下层磨料。
取样器：取样直径38mm的圆盘取样器，用于取样尺寸为φ38mm的上层磨料。
样品预处理：将测试样品置于室温下24H。
测试步骤：
1）检测仪器各个部件，确保仪器使用正常。
2）用直径144mm的取样器取φ140mm的下层磨料并将其覆盖在标准垫料上，然后在下层磨料上放置装样压锤，旋紧圆环夹，使磨料固定在试样台上。
3）用直径38mm的取样器取φ38mm的上层磨料的试样，通过取样器将试样装入重量200gA型摩擦头金属夹头内，金属夹与摩擦头之间衬垫一块直径38mm的聚氨酯泡沫塑料。
4）置试样夹头于摩擦平台上使芯轴穿过轴承插在试样夹头上，然后加上395g砝码（395g砝码重量+200g金属夹头重量产生的负荷为583.1CN）。
5）打开仪器开关，将转速设为50转/分钟、转数设定为60转。设定结束后，点击'启动'按钮，仪器开始运转，仪器设定的测试次数结束后，仪器停止。查看下层磨料的起毛状况。
6）耐磨性判定：参照耐磨性评级图片，进行耐磨性程度确认。
测试项目 市售擦拭巾1 市售擦拭巾2 本发明的耐磨擦拭巾
耐磨等级 3 4 2
由上表可以看出，本发明的耐磨擦拭巾16由于熔喷纤维网13、14含有纤维表面含有低熔点树脂的单组份熔喷纤维，纤维表面含有低熔点树脂的单组份熔喷纤维与所述熔喷纤维网13、14的总纤维的数量百分比为40%，在喷丝过程中，通过喷丝孔的排布形成纤维表面为高熔点树脂的熔喷纤维和纤维表面含有低熔点树脂的单组份熔喷纤维共混在一起，并且在熔喷纤维网13、14和木浆纤维网12通过热风烘箱D1时，在热风的作用下，熔喷纤维网13、14中的纤维表面含有低熔点树脂的单组份熔喷纤维表面开始熔融，使得熔喷纤维之间会粘连在一起，从而将多层结构纤维网15固结在一起形成所述耐磨擦拭巾16，这样既增加了擦拭巾的整体强度，又增加了擦拭巾的耐磨擦性能，使得在擦拭过程中，不会出现表面起毛、起绒现象；同时熔喷纤维网13、14的纤维纤度小，排布致密，且纤维之间有相互粘连，更加防止了中间层木浆短纤维的掉落。
实施例2
如图3所示，本发明揭示了一种耐磨擦拭巾的制造方法，包括下列步骤：
（1）木浆21通过开松辊A2开松打散后，在辅助气流的作用下通过喷管B2形成木浆纤维网22。
（2）采用熔喷法工艺，将高熔点热塑性树脂和低熔点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C2、C2'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，从而伴随热气流形成熔喷纤维网23、24，其中，所述喷丝板C2、C2'上的喷丝孔含有双组份喷丝孔，所述喷丝板C2、C2'上的双组份喷丝孔为皮芯型、橘瓣型或并列型，通过双组份喷丝孔的熔喷纤维网23、24含有纤维表面为高熔点树脂的熔喷纤维和纤维表面含有低熔点树脂的双组份熔喷纤维，如图5A至图5C所示，所述双组份熔喷纤维可以为皮芯型熔喷纤维27、双组份橘瓣型熔喷纤维28或双组份并列型熔喷纤维29，且所述皮芯型熔喷纤维27中皮层树脂27b的熔点与芯层树脂27a的熔点之差≥20℃，双组份橘瓣型熔喷纤维28和双组份并列型熔喷纤维29的其中一种树脂28b、29b的熔点与另一种树脂28a、29a的熔点之差≥20℃，并且双组份熔喷纤维与所述熔喷纤维网23、24的总纤维的数量百分比为50%。然后形成的熔喷纤维网23、24在木浆纤维网22的两个侧面处相交汇，形成两侧是含有双组份熔喷纤维的熔喷纤维网23、24，中间为木浆纤维网22的多层结构纤维网25。
（3）所述多层结构纤维网25通过一对啮合的热轧辊E2将纤维网固结在一起，形成上、下两层为含有双组份熔喷纤维的熔喷纤维网23、24，中间层为木浆纤维网22的耐磨擦拭巾26。
如图4所示，本发明还揭示了一种可应用上述耐磨擦拭巾的制造方法制成的耐磨擦拭巾，其为层状结构，所述耐磨擦拭巾26的上、下两层为熔喷纤维网23、24，中间层为木浆纤维网22，所述熔喷纤维网23、24含有纤维表面为高熔点树脂的熔喷纤维和纤维表面含有低熔点树脂的双组份熔喷纤维，所述高熔点树脂的熔点与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双组份熔喷纤维可以为双组份皮芯型熔喷纤维27、双组份橘瓣型熔喷纤维28或双组份并列型熔喷纤维29，双组份熔喷纤维与所述熔喷纤维网23、24的总纤维的数量百分比为50%，所述熔喷纤维网23、24的熔喷纤维穿插于木浆纤维网22中。
采用上述方案后，由于在喷丝过程中，通过双组份喷丝孔的排布可以将纤维表面为高熔点树脂的熔喷纤维和纤维表面含有低熔点树脂的双组份熔喷纤维在形成熔喷纤维时就共混在一起，并且在木浆纤维网12及熔喷纤维网13、14通过热轧辊时，热轧区域可以在热轧压力作用下形成熔融的热轧点，而非热轧区域由于温度的作用，熔喷纤维网13、14中的双组份熔喷纤维表面的低熔点树脂开始熔融，使得熔喷纤维之间会粘连在一起，从而将多层结构纤维网25固结在一起形成所述耐磨擦拭巾26，这样既增加了擦拭巾的耐磨擦性能，使得在擦拭过程中，不会出现表面起毛、起绒现象；同时也增加了擦拭巾的整体强度，有利于多次擦拭。
实施例3
如图6所示，本发明揭示了一种耐磨擦拭巾的制造方法，包括下列步骤：
（1）木浆31通过开松辊A3开松打散，并与热熔胶粘物质32混合后在辅助气流的作用下通过喷管B3形成含有热熔胶粘物质的木浆纤维网33。
（2）采用熔喷法工艺，将高熔点热塑性树脂和低熔点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C3、C3'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34、35，其中，所述熔喷纤维网34、35包含纤维表面为高熔点树脂的熔喷纤维和纤维表面含有低熔点树脂的熔喷纤维，所述纤维表面含有低熔点树脂的熔喷纤维即单组份低熔点熔喷纤维和双组份熔喷纤维，并且该纤维表面含有低熔点树脂的熔喷纤维与所述熔喷纤维网34、35的总纤维的数量百分比为20%，低熔点树脂的熔点与高熔点树脂的熔点之差≥20℃；然后将形成的熔喷纤维网34、35在含有热熔胶粘物质的木浆纤维网33的两个侧面处相交汇，形成两侧是熔喷纤维网34、35，中间为含有热熔胶粘物质的木浆纤维网33的多层结构纤维网36。
（3）所述多层纤维网36通过热风烘箱D3和一对啮合的热轧辊E3将纤维网固结在一起，形成上、下两层为含有单组份低熔点熔喷纤维和双组份熔喷纤维的熔喷纤维网34、35，中间层为含有热熔胶粘物质32的木浆纤维网33的耐磨擦拭巾37。
如图7所示，本发明还揭示了一种可应用上述耐磨擦拭巾的制造方法制成的耐磨擦拭巾，其为层状结构，所述耐磨擦拭巾37的上、下两层为熔喷纤维网34、35，中间层为含有热熔胶粘物质32的木浆纤维网33，所述熔喷纤维网34、35包含纤维表面为高熔点树脂的熔喷纤维和纤维表面含有低熔点树脂的单组份熔喷纤维，所述高熔点树脂的熔点与低熔点树脂的熔点之差≥20℃，所述单组份熔喷纤维即可为单组份低熔点熔喷纤维和双组份熔喷纤维，并且该单组份低熔点熔喷纤维与所述熔喷纤维网34、35的总纤维的数量百分比为20%，所述熔喷纤维网34、35的熔喷纤维穿插于木浆纤维网33中。
采用上述方案后，由于中间层的木浆纤维网33中添加有热熔胶粘物质32，在热风烘箱D3中热熔胶粘物质32表面开始熔融，在一定程度上将中间层的木浆短纤固定，使得木浆短纤难以移动，从而防止所形成的擦拭巾在使用时不会出现'掉毛'的现象，从而减少擦拭巾的表面起毛，增加了耐磨性能。

Claims (12)

  1. 一种耐磨擦拭巾，其特征在于：所述耐磨擦拭巾的上、下两层为熔喷纤维网，中间层为木浆纤维网，其中，所述熔喷纤维网含有纤维表面为高熔点树脂的熔喷纤维和纤维表面含有低熔点树脂的熔喷纤维，所述低熔点树脂的熔点与高熔点树脂的熔点之差≥20℃，且所述纤维表面含有低熔点树脂的熔喷纤维与所述熔喷纤维网的总纤维的数量百分比大于5%，所述熔喷纤维网的熔喷纤维有穿插于木浆纤维中。
  2. 如权利要求1所述一种耐磨擦拭巾，其特征在于：所述纤维表面含有低熔点树脂的熔喷纤维为单组份低熔点熔喷纤维、双组份熔喷纤维或两者相混合。
  3. 如权利要求2所述一种耐磨擦拭巾，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。
  4. 如权利要求1所述一种耐磨擦拭巾，其特征在于：所述纤维表面含有低熔点树脂的熔喷纤维与所述熔喷纤维网的总纤维的数量百分比为30%～70%。
  5. 如权利要求1所述一种耐磨擦拭巾，其特征在于：所述木浆纤维网的重量占耐磨擦拭巾总重量的百分比大于50%。
  6. 如权利要求1所述一种耐磨擦拭巾，其特征在于：所述木浆纤维网的重量占耐磨擦拭巾总重量的百分比为65%-80%。
  7. 如权利要求1所述一种耐磨擦拭巾，其特征在于：所述木浆纤维网含有热熔胶粘物质。
  8. 一种如权利要求1所述耐磨擦拭巾的制造方法，其特征在于，包括下列步骤：
    （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，将两种熔点之差≥20℃的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中喷出的热塑性树脂的溶体细流吹散成纤维直径≤1.0μm的纤维束，从而伴随热气流形成熔喷纤维网，其中，所述熔喷纤维中含有纤维表面为高熔点树脂的熔喷纤维和纤维表面含有低熔点树脂的熔喷纤维，且所述纤维表面含有低熔点树脂的熔喷纤维与所述熔喷纤维网的总纤维的数量百分比大于5%，然后形成的熔喷纤维网在木浆纤维网的两个侧面处相交汇，形成两侧是熔喷纤维网，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、下两层为含有纤维表面为高熔点树脂的熔喷纤维和纤维表面含有低熔点树脂的熔喷纤维的熔喷纤维网，中间层为木浆纤维网的耐磨擦拭巾。
  9. 如权利要求8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。
  10. 如权利要求9所述一种耐磨擦拭巾的制造方法，其特征在于：所述喷丝板上的双组份喷丝孔为皮芯型、橘瓣型或并列型。
  11. 如权利要求8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。
  12. 如权利要求8所述一种耐磨擦拭巾的制造方法，其特征在于：所述步骤（1）中，木浆通过开松辊，将其开松打散，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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