JPH0985870A - Wiping cloth - Google Patents

Wiping cloth

Info

Publication number
JPH0985870A
JPH0985870A JP7243412A JP24341295A JPH0985870A JP H0985870 A JPH0985870 A JP H0985870A JP 7243412 A JP7243412 A JP 7243412A JP 24341295 A JP24341295 A JP 24341295A JP H0985870 A JPH0985870 A JP H0985870A
Authority
JP
Japan
Prior art keywords
pulp
paper sheet
fibers
composite sheet
wiping cloth
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP7243412A
Other languages
Japanese (ja)
Inventor
Seiichi Ide
成一 井出
Osamu Kitao
修 北尾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
New Oji Paper Co Ltd
Original Assignee
Oji Paper Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oji Paper Co Ltd filed Critical Oji Paper Co Ltd
Priority to JP7243412A priority Critical patent/JPH0985870A/en
Publication of JPH0985870A publication Critical patent/JPH0985870A/en
Pending legal-status Critical Current

Links

Landscapes

  • Manufacturing Of Multi-Layer Textile Fabrics (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Nonwoven Fabrics (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Laminated Bodies (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a wiping cloth that compression collapse in the thickness direction of a sheet scarcely occurs, even if it is compressed and squeezed in a wet state, and has a composite sheet including high bulk, excellent flexibility, water retention characteristics, water absorbing characteristics and washing resistance as the cloth and particularly remarkably excellent wiping properties. SOLUTION: The wiping cloth comprises a paper sheet made of pulp fiber laminated on one side surface of a spun bonded nonwoven fabric, a composite sheet formed by passing high-pressure water column flow from the surface side of the paper sheet toward the bonded nonwoven fabric side and confounding the pulp fiber and the long fiber of the nonwoven fabric to integrate them and impregnated with synthetic resin, wherein the paper sheet contains 5 to 75wt.% of pulp fiber containing 90wt.% or more of α-cellulose content.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】 本発明は、工業用ワイパ
ー、ウェス、カウンタークロス、ふきん、雑巾等のため
の繰り返し使用可能な拭き取り性能に優れた拭き布に関
する。
TECHNICAL FIELD The present invention relates to a wiping cloth having excellent wiping performance which can be repeatedly used for industrial wipers, waste cloths, counter cloths, wipes, rags and the like.

【0002】[0002]

【従来の技術】 従来より、繰り返し使用可能な拭き布
として、セルロースパルプ繊維を嵩高に集積した後、合
成高分子の樹脂の水溶性エマルジョンを接着剤として塗
布或いは含浸させて含有せしめて乾燥させた乾式パルプ
シートが使用されている。しかしながら、この乾式パル
プシートの拭き取り性は良好であるが、使用されている
セルロースパルプ繊維が短繊維であるため湿潤強度が弱
く、水や薬剤を含有する水溶液を吸収して濡れた状態で
の使用の際や洗濯時に破れ易いという欠点がある。これ
を改善するためには、前記高分子の樹脂からなる接着剤
を多量に含有させ補強する必要があるが、短繊維のみで
構成されているため、たとえそのような接着剤で処理し
ても強度は十分に発現しない。更に、接着剤の含有量が
多いと、拭き布としての重要な特性である吸水性や保水
性が低下するとともに、柔軟性が悪化するという欠点が
新たに生じる。
2. Description of the Related Art Conventionally, as a wiping cloth that can be repeatedly used, cellulose pulp fibers are bulky accumulated, and then a water-soluble emulsion of a synthetic polymer resin is applied or impregnated as an adhesive to be contained and dried. Dry pulp sheets are used. However, although the dry-pulp sheet has good wiping-off property, the wet strength is weak because the cellulose pulp fibers used are short fibers, and it is used in a wet state by absorbing water or an aqueous solution containing a drug. It has the drawback of being easily torn during washing and washing. In order to improve this, it is necessary to contain a large amount of an adhesive composed of the polymer resin for reinforcement, but since it is composed of only short fibers, even if treated with such an adhesive. The strength is not sufficiently expressed. Further, if the content of the adhesive is large, water absorption and water retention, which are important characteristics as a wiping cloth, are lowered, and the softness is deteriorated.

【0003】一方、親水性繊維であるレーヨン繊維を集
積してウェブとした後、レーヨン繊維相互間を絡合させ
るため及び拭き取り性を向上させる目的でウェブに開孔
を設けるためにウェブに水柱流を施す方法(高圧水ジェ
ット交絡法ともいう)も知られている。しかしながら、
水柱流によって繊維同士の絡合と開孔を付与させるため
には、レーヨン繊維の集積量が多くなければならない。
即ち、レーヨン繊維の集積量の少ないウェブは、レーヨ
ン繊維相互間に比較的大きい間隙が形成されており、水
柱流を施しても、その水柱流はレーヨン繊維に衝突せず
に通過してしまい、その結果、水柱流によってレーヨン
繊維同士の絡合は勿論、ウェブへの開孔も施すことがで
きない。
On the other hand, after rayon fibers, which are hydrophilic fibers, are collected to form a web, a water column flow is applied to the web in order to entangle the rayon fibers with each other and to provide holes in the web for the purpose of improving wiping property. A method of applying (also called a high-pressure water jet entanglement method) is also known. However,
In order to provide the entanglement of fibers with each other and the formation of pores by the water column flow, a large amount of rayon fibers must be accumulated.
That is, in the web having a small amount of rayon fibers accumulated, a relatively large gap is formed between the rayon fibers, and even if a water column flow is applied, the water column flow passes without colliding with the rayon fibers, As a result, it is not possible to entangle the rayon fibers with each other by the water column flow and also to open the web.

【0004】このように、レーヨン繊維を用いる拭き布
の場合、レーヨン繊維の集積量を多くする必要がある
が、そうすると拭き布としては過剰品質を伴って嵩高な
ものとなり、必然的に製造コストも高いものとなるとい
う欠点がある。又、レーヨン繊維は親水性に優れている
ため、水を良く吸収して膨潤し、その剛性が極端に低下
し、洗濯時に繊維がほぐれ易くなるため、繊維同士を固
着するための高分子の樹脂からなる接着剤を用いる必要
があるが、レーヨン繊維の集積量が多い場合は、接着剤
の含有量も多くする必要がある。しかしながら、前記接
着剤の含有量を多くすると、拭き布として保水性が低下
するとともに、柔軟性が悪化するという新たな欠点が生
じる。
As described above, in the case of a wiping cloth using rayon fibers, it is necessary to increase the amount of rayon fibers accumulated. However, when this is done, the wiping cloth becomes bulky with excess quality and inevitably the manufacturing cost. It has the drawback of being expensive. In addition, since rayon fiber has excellent hydrophilicity, it absorbs water well and swells, its rigidity is extremely lowered, and the fiber easily disentangles during washing. Therefore, a polymer resin for fixing the fibers to each other. It is necessary to use an adhesive consisting of, but when the amount of rayon fibers accumulated is large, the content of the adhesive also needs to be large. However, if the content of the adhesive is increased, the water retention of the wiping cloth is lowered, and the softness is deteriorated.

【0005】湿潤時の強度を増す方法として、例えば特
開平6−146716号公報には、疎水性の連続長繊維
からなるスパンボンド不織布の上に紙シートを積層し、
紙シートの表面側から高圧水柱流を施してパルプ繊維と
スパンボンド不織布の長繊維とを交絡一体化させて複合
シートとした後、自己架橋型樹脂を所定量含有せしめ、
乾燥させて拭き布を製造する方法が開示されている。こ
の方法による複合シートからなる拭き布は、水を吸収し
難い疎水性長繊維が主体となって形態を維持しているた
め、湿潤強度が高く、濡れた状態での使用や洗濯時に破
れ易いという欠点を解消し、洗濯時のパルプ繊維の脱落
をも防止し得るというものである。
As a method for increasing the strength when wet, for example, in Japanese Patent Laid-Open No. 146716/1994, a paper sheet is laminated on a spunbonded nonwoven fabric made of continuous continuous hydrophobic fibers,
A high pressure water column flow is applied from the surface side of the paper sheet to form a composite sheet by confounding and integrating pulp fibers and long fibers of spunbonded nonwoven fabric, and then containing a predetermined amount of self-crosslinking resin,
A method of making a wipe by drying is disclosed. Since the wiping cloth composed of the composite sheet by this method is mainly composed of hydrophobic long fibers that are difficult to absorb water and maintains its shape, it has high wet strength and is easily torn when used in a wet state or washed. The drawbacks can be eliminated and the fall of pulp fibers during washing can be prevented.

【0006】しかしながら、前記の方法で得られる複合
シートからなる拭き布では、高圧水柱流によりパルプ繊
維とスパンボンド不織布を交絡一体化させて複合シート
とした後、乾燥効率の見地から絞り工程が設けられてお
り、湿潤状態で複合シートを圧縮して絞ると、水によっ
て膨潤し、柔軟化しているパルプ繊維は潰れ易くなり、
複合シートの厚み方向における厚みが減少する。ところ
が、このタイプの拭き布は毛細管現象によって吸水する
ものであるため、シート厚が薄くなり、絞りという圧縮
操作により複合シートの密度が大きくなると、特に拭き
取り性が大きく低下するという欠点が内在している。
However, in the wiping cloth made of the composite sheet obtained by the above-mentioned method, the pulp fiber and the spunbonded nonwoven fabric are entangled and integrated with each other by a high pressure water column flow to form a composite sheet, and then a squeezing step is provided from the viewpoint of drying efficiency. When the composite sheet is compressed and squeezed in a wet state, it swells with water and the softened pulp fiber is easily crushed,
The thickness of the composite sheet in the thickness direction is reduced. However, since this type of wiping cloth absorbs water by a capillary phenomenon, the sheet thickness becomes thin, and when the density of the composite sheet increases due to the compression operation called squeezing, there is an inherent disadvantage that the wiping property is greatly reduced. There is.

【0007】[0007]

【発明が解決しようとする課題】 本発明者等は、かか
る現状に鑑み、前記問題点を解決すべく鋭意研究を重
ね、複合シートからなる拭き布を製造する際に前記スパ
ンボンド不織布の上に積層する紙シートにαセルロース
含有率が高いパルプ繊維を特定量含有させてなる複合シ
ートからの拭き布は、複合シートを作製する際に湿潤状
態で圧縮絞りを行っても、又拭き布の耐洗濯性を改善す
る目的で前記の樹脂を含有させる際に、樹脂量を調節す
るために湿潤状態で絞り操作を行っても複合シートの厚
み方向における圧縮潰れを防止することができ、他の性
能を維持しながら、拭き取り性能を顕著に改善できるこ
とを見出し本発明を完成させるに至った。本発明の目的
は、複合シートからなる拭き布に樹脂を含有させる前に
湿潤状態で圧縮して絞るという操作を行っても、シート
の厚み方向における圧縮潰れが起こり難く、嵩高で拭き
布として優れた柔軟性、保水性、吸水性及び耐洗濯性を
有し、特に拭き取り性が顕著に優れた複合シートからな
る拭き布を提供することにある。
SUMMARY OF THE INVENTION In view of the present situation, the present inventors have conducted diligent research to solve the above problems, and apply the spunbonded non-woven fabric onto the spunbonded nonwoven fabric when manufacturing a wiping cloth made of a composite sheet. A wiping cloth made of a composite sheet in which a specific amount of pulp fibers having a high α-cellulose content is contained in a paper sheet to be laminated is a composite cloth sheet having a resistance to the wiping cloth even when compressed and squeezed in a wet state when the composite sheet is prepared. When the above resin is contained for the purpose of improving the washability, it is possible to prevent the compression crushing in the thickness direction of the composite sheet even if a squeezing operation is performed in a wet state in order to adjust the amount of the resin. The inventors have found that the wiping performance can be remarkably improved while maintaining the above, and have completed the present invention. The object of the present invention is that even if an operation of compressing and squeezing in a wet state before containing a resin in a wiping cloth made of a composite sheet, compression collapse in the thickness direction of the sheet hardly occurs, and it is bulky and excellent as a wiping cloth. Another object of the present invention is to provide a wiping cloth made of a composite sheet which has excellent flexibility, water retention, water absorption and washing resistance and which is particularly excellent in wiping-off property.

【0008】[0008]

【課題を解決するための手段】 本発明は、熱可塑性重
合体の樹脂組成物を溶融紡糸し、紡糸された長繊維フィ
ラメント群を捕集してウェブとした後、該ウェブに規則
的で断続的な自己融着区域を設けて得られるスパンボン
ド不織布の片面に、パルプ繊維からなる紙シートを積層
し、該紙シートの表面側からスパンボンド不織布側に向
けて高圧水柱流を貫通させ、パルプ繊維と不織布の長繊
維とを交絡一体化させて複合シートとした後、該複合シ
ートに合成樹脂を含有させてなる拭き布において、該紙
シートがαセルロース含有率が90重量%以上のパルプ
繊維を5〜75重量%含有することを特徴とする拭き布
である。
Means for Solving the Problems In the present invention, a resin composition of a thermoplastic polymer is melt-spun, a spun long fiber filament group is collected into a web, and the web is regularly and intermittently cut. On one side of the spunbonded non-woven fabric obtained by providing a typical self-bonding area, a paper sheet made of pulp fibers is laminated, and a high pressure water column flow is passed from the surface side of the paper sheet toward the spunbonded non-woven fabric side, In a wiping cloth obtained by intertwining fibers and long fibers of a non-woven fabric into a composite sheet and then containing a synthetic resin in the composite sheet, the paper sheet has pulp fibers having an α-cellulose content of 90% by weight or more. The cleaning cloth is characterized by containing 5 to 75% by weight.

【0009】本発明においては、まず疎水性で熱可塑性
の樹脂からなる連続長繊維が集積されてなる長繊維ウェ
ブからのスパンボンド不織布を準備する。例えば、この
ような不織布は、公知の押出し紡糸機において、熱可塑
性の樹脂を溶融紡糸し、紡出された連続長繊維フィラメ
ント群をエジェクターにより高速高圧エアーで延伸しな
がら引き取り、開繊し、捕集用の支持体面上に捕集して
ウェブとし、このウェブに熱圧着処理を施すことにより
得られる。長繊維としては、例えばポリオレフィン系長
繊維、ポリエステル系長繊維、ポリアミド系長繊維、ポ
リアクリル酸エステル系長繊維等を挙げることができ、
適宜この中から選択して用いられる。
In the present invention, first, a spunbonded non-woven fabric is prepared from a continuous fiber web in which continuous continuous fibers made of a hydrophobic thermoplastic resin are accumulated. For example, such a nonwoven fabric is melt-spun with a thermoplastic resin in a known extrusion spinning machine, and the spun continuous filament filament group is drawn by an ejector while being drawn with high-speed high-pressure air, opened, and captured. It is obtained by collecting on a support surface for collecting into a web, and subjecting this web to thermocompression bonding treatment. Examples of the long fibers include polyolefin long fibers, polyester long fibers, polyamide long fibers, polyacrylic acid ester long fibers, and the like.
It is appropriately selected from these and used.

【0010】本発明において、長繊維を使用する理由
は、長繊維よりなる長繊維ウェブは、短繊維よりなる短
繊維ウェブよりも、繊維間が絡合している場合、引張強
度や形態安定性に優れているからである。更に、長繊維
の場合、高圧水柱流を施しても、水柱流と共に繊維が流
出し難いからである。長繊維の繊度は、1〜7デニー
ル、好ましくは1〜4デニールである。長繊維の繊度が
7デニールを超えると、不織布の柔軟性が低下し、拭き
布として使用した場合の柔軟性も低下し、使用感が悪く
なる。逆に長繊維の繊度が1デニール未満になると、長
繊維の製造条件が厳密になって、長繊維、ひいては長繊
維ウェブを高速度で製造し難くなる。
In the present invention, the reason why the long fibers are used is that the long fiber web made of the long fibers is more entangled with each other than the short fiber web made of the short fibers when the fibers are entangled with each other. Because it is superior to. Furthermore, in the case of long fibers, even if a high pressure water column flow is applied, it is difficult for the fibers to flow out together with the water column flow. The fineness of the long fibers is 1 to 7 denier, preferably 1 to 4 denier. When the fineness of the long fibers exceeds 7 denier, the flexibility of the non-woven fabric is reduced, and the flexibility when used as a wiping fabric is also reduced, resulting in poor usability. On the other hand, when the fineness of the long fibers is less than 1 denier, the conditions for producing the long fibers become strict, and it becomes difficult to produce the long fibers and thus the long fiber web at a high speed.

【0011】長繊維として疎水性で熱可塑性を有する繊
維を用いる理由は、長繊維として疎水性のものを使用す
ると、親水性のものを使用した場合と比較して、水を吸
収して膨潤し難く、長繊維の湿潤強度が低下し難いから
である。長繊維の湿潤強度が低下し難いということは、
長繊維を含有する拭き布も湿潤強度が低下し難く、濡れ
た状態での使用の際や洗濯時に破れ易いという欠点を防
止しうるからである。前記長繊維ウェブからなるスパン
ボンド不織布の坪量は、5〜30g/m2、好ましくは
5〜20g/m2である。不織布の坪量が30g/m2
越えると、不織布の片面にパルプ繊維からなる紙シート
を積層して、該紙シート側から不織布側に向けて高圧水
柱流を施しても、紙シートを構成するパルプ繊維が不織
布の紙シートと当接していない面(積層体の裏面)に移
動し難くなり、厚み方向における吸水性に差が出てくる
ようになる。逆に、不織布の坪量が5g/m2未満で
は、不織布の形態安定性が低下し、得られる拭き布の湿
潤強度が低下する。更に、長繊維相互間の間隙が大きく
なって、高圧水柱流を施したときに、その間隙からパル
プ繊維が流失し、無駄になる上、使用済みの排水を回収
した場合、その中にパルプ繊維が大量に混入するので、
その処理にも困るようになる。
The reason why hydrophobic and thermoplastic fibers are used as long fibers is that when hydrophobic long fibers are used, they absorb water and swell as compared with the case where hydrophilic long fibers are used. This is because it is difficult and the wet strength of the long fibers does not easily decrease. It is difficult for the wet strength of long fibers to decrease,
This is because the wiping cloth containing long fibers also has a low wet strength, and can prevent the drawback of being easily broken during use in a wet state or during washing. The basis weight of the spunbonded nonwoven fabric composed of the long fiber web is 5 to 30 g / m 2 , and preferably 5 to 20 g / m 2 . When the basis weight of the non-woven fabric exceeds 30 g / m 2 , a paper sheet is formed even if a paper sheet made of pulp fiber is laminated on one side of the non-woven fabric and a high pressure water column flow is applied from the paper sheet side to the non-woven fabric side. It becomes difficult for the pulp fibers to move to the surface of the non-woven fabric that is not in contact with the paper sheet (the back surface of the laminated body), and the difference in water absorption in the thickness direction appears. On the contrary, when the basis weight of the nonwoven fabric is less than 5 g / m 2 , the morphological stability of the nonwoven fabric is reduced and the wet strength of the obtained wiping fabric is reduced. Furthermore, when the gap between the long fibers becomes large and the high pressure water column flow is applied, the pulp fiber is washed away from the gap and is wasted. Is mixed in a large amount,
You will also be in trouble with that process.

【0012】前記長繊維ウェブからなるスパンボンド不
織布は、加熱により長繊維相互間を散点状に多数点融着
されている。本発明において、スパンボンド不織布が好
適に用いられる理由は、不織布が、長繊維相互間が自己
融着した点融着部を持つために、形態安定性に優れると
共に、点融着部以外の部分においては、長繊維相互間が
自己融着されておらず、自由な状態で集積されているた
め、優れた柔軟性が得られると共にパルプ繊維と良好に
交絡し易いからである。
The spunbonded non-woven fabric made of the long fiber web is fused with the long fibers in a scattered manner by heating. In the present invention, the reason why the spunbonded non-woven fabric is preferably used is that the non-woven fabric has a point fusion part in which long fibers are self-fused to each other, and thus has excellent morphological stability and a part other than the point fusion part. In (1), since the long fibers are not self-fused to each other and are accumulated in a free state, excellent flexibility is obtained and the fibers are easily entangled with each other.

【0013】前記したようにして準備したスパンボンド
不織布の片面に、αセルロース含有率が90重量%以上
のパルプ繊維を5〜75重量%含有するパルプ繊維から
なる紙シートを積層する。本発明において用いられるα
セルロース含有率が90重量%以上のパルプ繊維は、針
葉樹材を公知のクラフト法、サルファイト法、ソーダ法
等で蒸解し、精選、漂白して得られる漂白パルプに公知
のアルカリ精製処理を施し、パルプ繊維に含有される微
量のリグニンやヘミセルロースを除去し、αセルロース
含有率を調節したパルプであり、特に溶解パルプやアル
カリマーセル化パルプが適している。漂白パルプは、通
常前記未晒パルプに塩素、アルカリ、次亜塩素酸塩、二
酸化塩素等の漂白薬品の組み合わせによる公知の多段漂
白シーケンスを適用して漂白され、この処理の間にリグ
ニンは除去され、それに伴ってヘミセルロースの一部も
除去されるが、αセルロース含有率を90重量%以上と
するには、得られた漂白パルプから更にヘミセルロース
を除去するためにアルカリで精製することが必要であ
る。
On one surface of the spunbonded nonwoven fabric prepared as described above, a paper sheet made of pulp fibers containing 5 to 75% by weight of pulp fibers having an α-cellulose content of 90% by weight or more is laminated. Α used in the present invention
Pulp fiber having a cellulose content of 90% by weight or more is prepared by cooking a softwood material by a known kraft method, a sulfite method, a soda method, etc., and performing a known alkali refining treatment on the bleached pulp obtained by careful selection and bleaching. It is a pulp in which a trace amount of lignin and hemicellulose contained in pulp fibers are removed and the α-cellulose content is adjusted, and dissolving pulp and alkali mercerized pulp are particularly suitable. Bleached pulp is usually bleached by applying a known multi-stage bleaching sequence to the unbleached pulp by a combination of bleaching agents such as chlorine, alkali, hypochlorite, chlorine dioxide, etc., and lignin is removed during this treatment. Along with this, part of hemicellulose is also removed, but in order to make the α-cellulose content of 90% by weight or more, it is necessary to purify with an alkali to further remove hemicellulose from the obtained bleached pulp. .

【0014】アルカリ精製の方法としては、例えば、前
記漂白パルプを0.5〜3重量%濃度の苛性ソーダのよ
うな希アルカリ溶液中に80〜140℃で浸漬処理し、
αセルロース含有率を90〜96重量%とする方法、3
〜25重量%濃度の苛性ソーダのような強アルカリ溶液
中に20〜40℃で浸漬処理し、αセルロース含有率を
96〜100重量%とする方法があるが、本発明で用い
られるαセルロース含有率が90重量%以上のパルプ繊
維は、αセルロース含有率が90重量%以上であれば良
く、特に製造の方法は限定されない。本発明におけるパ
ルプ繊維中のαセルロース含有率は、JIS P 81
01(溶解パルプの試験法)に記載の方法に基づき測定
した値であり、17.5(質量)%水酸化ナトリウム溶
液に不溶なセルロース重量の絶乾パルプ繊維重量に対す
る割合で示される。
As a method of alkali refining, for example, the bleached pulp is immersed in a dilute alkali solution such as caustic soda having a concentration of 0.5 to 3% by weight at 80 to 140 ° C.,
Method for adjusting α-cellulose content to 90 to 96% by weight, 3
There is a method of dipping at 20 to 40 ° C. in a strong alkaline solution such as caustic soda having a concentration of ˜25 wt% to make the α cellulose content of 96 to 100 wt%, but the α cellulose content used in the present invention is The pulp fiber having a content of 90% by weight or more has an α-cellulose content of 90% by weight or more, and the manufacturing method is not particularly limited. The α-cellulose content in the pulp fiber according to the present invention is determined according to JIS P 81
It is a value measured based on the method described in No. 01 (Test method for dissolving pulp), and is indicated by the ratio of the weight of cellulose insoluble in a 17.5 (mass)% sodium hydroxide solution to the weight of absolutely dry pulp fiber.

【0015】一方、αセルロース含有率が90重量%以
上のパルプと混合して用いられる、αセルロース含有率
が調整されていないパルプとしては、針葉樹材或いは広
葉樹材を公知のクラフト法、サルファイト法、ソーダ
法、ポリサルファイド法等で蒸解して得られる未晒パル
プ、更に必要に応じて漂白して得られる晒パルプ、叉は
前記針葉樹材からの砕木パルプ、サーモメカニカルパル
プ等の機械パルプを挙げることができ、これらのパルプ
は、単独で或いは混合して使用することができる。広葉
樹パルプを併用する場合の針葉樹パルプと広葉樹パルプ
の重量配合比は、針葉樹パルプ:広葉樹パルプ=10
0:0〜20:80、好ましくは100:0〜40:6
0の範囲である。広葉樹パルプが全パルプ量の80重量
%を越えると、高圧水柱流を施した際に、パルプの消失
量が増大するばかりでなく、絡合後の複合シートの柔軟
性も低下する。
On the other hand, as a pulp having an α-cellulose content not adjusted, which is used by mixing with a pulp having an α-cellulose content of 90% by weight or more, softwood or hardwood is a known kraft method or sulfite method. , Soda method, unbleached pulp obtained by digesting with a polysulfide method, bleached pulp obtained by further bleaching if necessary, or groundwood pulp from the softwood, mechanical pulp such as thermomechanical pulp These pulps can be used alone or as a mixture. When the hardwood pulp is used together, the weight mixing ratio of the softwood pulp and the hardwood pulp is as follows: softwood pulp: hardwood pulp = 10
0: 0 to 20:80, preferably 100: 0 to 40: 6
It is in the range of 0. If the hardwood pulp exceeds 80% by weight of the total pulp amount, not only the amount of pulp lost when a high-pressure water column flow is applied, but also the flexibility of the composite sheet after entanglement decreases.

【0016】前記αセルロース含有率が90重量%以上
に調整されたパルプ繊維を含有する紙シートは、αセル
ロース含有率が調整されていないパルプ繊維にαセルロ
ース含有率が調整されたパルプ繊維を配合した混合スラ
リーを用いて公知の湿式抄紙機で抄紙して、更にドライ
ヤーで乾燥して得られる。本発明において用いられる紙
シートは、αセルロース含有率が90重量%以上のパル
プ繊維を全パルプ繊維重量当り5〜75重量%含有す
る。前記含有率が5重量%未満では、高圧水柱流を施し
た後、複合シートの乾燥前で或いは耐洗濯性を付与する
ための合成高分子の樹脂を複合シートに含有させる際に
湿潤状態で絞られると、複合シートが厚み方向で圧縮変
形して復元せず、厚み方向での潰れが生じ、密度が高い
ものとなってしまう。一方、含有率が75重量%を越え
ると、吸水性や拭き取り性には問題は生じないが、抄紙
の際に地合崩れが生じ、紙シートの強度低下を引き起こ
し、配合量を多くした割には複合シートのシート厚みの
向上が得られず、高価なパルプ繊維を多く使用すること
になるので複合シートのコストが高くなり、得策ではな
い。
The above-mentioned paper sheet containing pulp fibers whose α-cellulose content is adjusted to 90% by weight or more is obtained by blending pulp fibers whose α-cellulose content is not adjusted with pulp fibers whose α-cellulose content is adjusted. It is obtained by making paper using a known wet paper machine using the mixed slurry prepared above, and further drying with a dryer. The paper sheet used in the present invention contains pulp fibers having an α-cellulose content of 90% by weight or more based on the total weight of pulp fibers in an amount of 5 to 75% by weight. When the content is less than 5% by weight, after the high pressure water column flow is applied, the composite sheet is squeezed in a wet state before the composite sheet is dried or when a synthetic polymer resin for imparting washing resistance is contained in the composite sheet. If so, the composite sheet is compressed and deformed in the thickness direction and is not restored, and the composite sheet is crushed in the thickness direction, resulting in high density. On the other hand, if the content exceeds 75% by weight, there is no problem in water absorbency and wiping-off property, but the formation collapses during papermaking, the strength of the paper sheet is reduced, and the compounding amount is increased in spite of the increased amount. The sheet thickness of the composite sheet cannot be improved, and a large amount of expensive pulp fiber is used, which increases the cost of the composite sheet and is not a good idea.

【0017】本発明に用いられる前記紙シートのJIS
P 8118による密度は、0.65g/cm3以下
である。紙シートの密度が0.65g/cm3を越える
と、この紙シートと不織布を積層体とし、その紙シート
の上から高圧水柱流を施した場合に、パルプ繊維の運動
が抑制されるので、長繊維とパルプ繊維との交絡が不十
分になり、交絡後の複合シートの柔軟性が低下する。し
かしながら、紙シートの密度を小さくしようとしても限
度があり、その下限はティシュペーパーのように柔らか
い状態の0.20g/cm3程度である。
JIS of the paper sheet used in the present invention
The density according to P 8118 is 0.65 g / cm 3 or less. When the density of the paper sheet exceeds 0.65 g / cm 3 , when the paper sheet and the non-woven fabric are made into a laminate and a high pressure water column flow is applied from above the paper sheet, the movement of the pulp fiber is suppressed, The entanglement of long fibers and pulp fibers becomes insufficient, and the flexibility of the composite sheet after entanglement decreases. However, there is a limit in reducing the density of the paper sheet, and the lower limit is about 0.20 g / cm 3 in a soft state like tissue paper.

【0018】この紙シートは、予め準備したスパンボン
ド不織布の片面に積層され、積層体とされるが、この時
にJIS P 8124によるスパンボンド不織布の坪
量と紙シートの絶乾坪量の比は、スパンボンド不織布:
紙シート=1:1〜1:19となるように調整する。ス
パンボンド不織布と紙シートの坪量比が1:1を越えて
紙シートの比が減少すると、長繊維の量に対して、相対
的にパルプ繊維の量が少なくなり、得られる拭き布の吸
水性や柔軟性が低下する。又、長繊維に対して、廉価な
パルプ繊維の量が少なくなることによって、得られる拭
き布自体の製造コストが高くなるので適さない。逆に、
スパンボンド不織布:紙シートの坪量比が1:19を越
えて、紙シートの比が増加すると、紙シートを構成する
パルプ繊維の全てが長繊維と強固に交絡し難くなり、そ
の結果得られた拭き布を水に湿潤させて使用した場合
に、パルプ繊維が脱落し易くなるので適さない。
This paper sheet is laminated on one side of a spunbonded nonwoven fabric prepared in advance to form a laminate. At this time, the ratio of the basis weight of the spunbonded nonwoven fabric according to JIS P 8124 to the absolute dry basis weight of the paper sheet is , Spunbond nonwoven:
Adjust so that paper sheet = 1: 1 to 1:19. When the basis weight ratio of spunbonded non-woven fabric and paper sheet exceeds 1: 1 and the ratio of paper sheet decreases, the amount of pulp fibers becomes relatively small with respect to the amount of long fibers, resulting in water absorption of the wipe. Sex and flexibility are reduced. In addition, the amount of inexpensive pulp fibers is smaller than that of long fibers, which increases the manufacturing cost of the obtained wiping cloth itself, which is not suitable. vice versa,
When the basis weight ratio of spunbonded non-woven fabric: paper sheet exceeds 1:19 and the ratio of the paper sheet increases, it becomes difficult for all of the pulp fibers constituting the paper sheet to be entangled firmly with the long fibers. When the wiping cloth is moistened with water and used, the pulp fibers easily fall off, which is not suitable.

【0019】前記紙シートをスパンボンド不織布の上に
積層し、積層体とした後、紙シートの表面からスパンボ
ンド不織布側に向けて高圧水柱流を施すが、この高圧水
柱流は、微細な孔径、例えば直径が0.01〜0.3m
mのノズル孔を通して高い水圧、例えば20〜180k
g/cm2の圧力で水を噴出させて得られるものであ
る。 この高圧水柱流を前記積層体に施すと、高圧水柱
流は、まず紙シートに衝突し、紙シートをスパンボンド
不織布上に密着させ、次いでこの密着した状態で、紙シ
ートの部分的な崩壊が生じ、その部分の紙シートを構成
するパルプ繊維を単離させ、パルプ繊維に曲げや捩れ等
の変形を起こさせると共に、パルプ繊維に運動エネルギ
ーを十分に与え、ランダムな運動を生じさせる。その結
果、これらの複合作用によってパルプ繊維とスパンボン
ド不織布の長繊維とが絡み合い、更に、長繊維同士も交
絡し、紙シートと不織布が一体化して複合シートが得ら
れるのである。
After the paper sheet is laminated on a spunbonded non-woven fabric to form a laminated body, a high-pressure water column flow is applied from the surface of the paper sheet toward the spunbonded non-woven fabric side. , For example, the diameter is 0.01-0.3m
High water pressure, for example 20 ~ 180k through m nozzle hole
It is obtained by ejecting water at a pressure of g / cm 2 . When this high-pressure water column flow is applied to the laminate, the high-pressure water column flow first collides with the paper sheet to bring the paper sheet into close contact with the spunbonded nonwoven fabric, and then, in this close contact state, partial collapse of the paper sheet occurs. Then, the pulp fibers constituting the paper sheet of that portion are isolated, the pulp fibers are deformed such as bent and twisted, and the pulp fibers are sufficiently given kinetic energy to cause random movement. As a result, the pulp fibers and the long fibers of the spunbonded non-woven fabric are entangled by the composite action of these, and the long fibers are also entangled with each other, and the paper sheet and the non-woven fabric are integrated to obtain a composite sheet.

【0020】本発明の拭き布は、この複合シートに洗濯
や揉み洗いに対する抵抗性(耐洗濯性)を付与するた
め、接着機能を有する合成高分子からなる樹脂を含有さ
せる。用いられる樹脂としては、加熱乾燥後に水不溶性
である必要がある。加熱乾燥後に樹脂が水に可溶性であ
る場合、洗濯や揉み洗い時に樹脂が溶出してパルプ繊維
の脱落が生じ、結果的に拭き布の吸水性や保水性を低下
させ、叉、拭き布を何回も繰り返し洗濯や揉み洗いを行
うと徐々に樹脂の強度低下が生じ、パルプ繊維が脱落す
るようになり、結果的に拭き布の吸水性や保水性が低下
するので、これを防ぐためには自己架橋型樹脂の使用が
適している。
The wiping cloth of the present invention contains a resin composed of a synthetic polymer having an adhesive function in order to impart resistance (washing resistance) to washing and rubbing and washing to the composite sheet. The resin used must be water-insoluble after heating and drying. If the resin is soluble in water after heating and drying, the resin elutes during washing or rubbing to cause the pulp fibers to fall off, resulting in a decrease in the water absorption or water retention of the wiping cloth. Repeatedly washing and rubbing repeatedly causes the resin strength to gradually decrease, causing the pulp fibers to fall off, resulting in a decrease in the water absorbency and water retention of the wiping cloth. The use of cross-linking resins is suitable.

【0021】本発明に用いられる前記樹脂のガラス転移
温度は、−50〜+20℃、好ましくは−45〜+10
℃である。樹脂のガラス転移温度が+20℃を超えて高
くなると、樹脂の剛性が高くなるため、結果的に、樹脂
を塗布した複合シートの柔軟性が減少するので好ましく
ない。逆に、樹脂のガラス転移温度が−50℃未満であ
ると、樹脂の粘着性が高くなり、樹脂を塗布した複合シ
ート表面のべとつきが生じるので拭き布として適さな
い。
The glass transition temperature of the resin used in the present invention is -50 to + 20 ° C, preferably -45 to +10.
° C. When the glass transition temperature of the resin is higher than + 20 ° C., the rigidity of the resin increases, and as a result, the flexibility of the resin-coated composite sheet decreases, which is not preferable. On the other hand, when the glass transition temperature of the resin is lower than -50 ° C, the adhesiveness of the resin increases and the surface of the composite sheet coated with the resin becomes sticky, which is not suitable as a wiping cloth.

【0022】本発明において使用される樹脂としては、
顔料塗工、各種の貼合わせに接着剤として用いられてい
る合成高分子からなる樹脂の水系エマルジョン、ラテッ
クス等の従来公知のものが使用でき、特に限定するもの
ではないが、例えば、ポリアクリル酸エステル、ポリメ
タクリル酸エステル、エチレン−酢酸ビニル共重合物、
スチレン−ブタジエン共重合物、ニトリル−ブタジエン
共重合物、ポリエステル樹脂、ポリウレタン樹脂等の水
系エマルジョン或いはラテックス類を挙げることができ
る。これらの樹脂は単独で使用しても良いし、二種類以
上の樹脂を混合して使用しても良く、更に、必要に応じ
て架橋剤、触媒等の助剤を添加して使用しても良い。樹
脂の使用に際しての形態は前記したごとく、水、溶剤等
の溶媒にエマルジョンの形で存在しても良いし、溶解し
た形で存在しても良く、更に複合シートに塗布した後に
加熱乾燥すると、自己架橋するとともに水不溶性とな
る、例えば自己架橋型のエチレンー酢酸ビニル共重合体
のエマルジョン、自己架橋型アクリル樹脂エマルジョン
等であっても良い。
The resin used in the present invention includes
Conventionally known materials such as an aqueous emulsion of a resin composed of a synthetic polymer used as an adhesive for pigment coating and various kinds of laminating, latex, etc. can be used, but not particularly limited, for example, polyacrylic acid. Ester, polymethacrylic acid ester, ethylene-vinyl acetate copolymer,
Examples thereof include styrene-butadiene copolymers, nitrile-butadiene copolymers, polyester resins, polyurethane resins, and other aqueous emulsions or latexes. These resins may be used alone, or two or more kinds of resins may be mixed and used, and further, a crosslinking agent, an auxiliary agent such as a catalyst may be added and used as necessary. good. As described above, the form of the resin used may be present in the form of an emulsion in a solvent such as water or a solvent, or may be present in the form of a solution, and may be heated and dried after being applied to a composite sheet, It may be self-crosslinking and water-insoluble, for example, a self-crosslinking ethylene-vinyl acetate copolymer emulsion or a self-crosslinking acrylic resin emulsion.

【0023】接着機能を有する合成高分子からなる樹脂
の塗布量は、複合シートを構成する紙シートの絶乾坪量
に対して2〜17重量%、好ましくは2.5〜15重量
%である。樹脂の塗布量が17重量%を越えると、紙シ
ートを構成するパルプ繊維の表面全体に樹脂皮膜が形成
されるので、紙シートの剛性が高くなり、結果的に、拭
き布の柔軟性が低下し、更に、樹脂は疎水性であるた
め、パルプ繊維の親水性を低下させ、拭き布の吸水性や
保水性を低下させるので適さない。本発明では、JIS
L 1096による吸水速度が1.5秒以内で示され
る吸水性であれば、実用的には問題ない。逆に、樹脂の
塗布量が2重量%未満では、パルプ繊維量に対して樹脂
量が不足するため、パルプ繊維を固定することができ
ず、洗濯時にパルプ繊維の脱落が生じてしまい、拭き布
として必要な吸水性や保水性を低下させるので、繰り返
し再使用ができないから適さない。
The coating amount of the synthetic polymer resin having an adhesive function is 2 to 17% by weight, preferably 2.5 to 15% by weight, based on the absolute dry basis weight of the paper sheet constituting the composite sheet. . When the coating amount of the resin exceeds 17% by weight, the resin film is formed on the entire surface of the pulp fibers constituting the paper sheet, so that the rigidity of the paper sheet is increased and, as a result, the flexibility of the wiping cloth is reduced. Moreover, since the resin is hydrophobic, it lowers the hydrophilicity of the pulp fiber and lowers the water absorption and water retention of the wiping cloth, which is not suitable. In the present invention, JIS
There is no problem in practical use as long as the water absorption rate according to L 1096 is within 1.5 seconds. On the other hand, when the coating amount of the resin is less than 2% by weight, the amount of the resin is insufficient with respect to the amount of the pulp fiber, so that the pulp fiber cannot be fixed, and the pulp fiber may fall off during washing, so that the wiping cloth It is not suitable because it reduces the water absorption and the water retention required, and cannot be reused repeatedly.

【0024】前記の接着機能を有する合成高分子からな
る樹脂をパルプ繊維と長繊維が絡合した複合シートに含
有させる手段としては、従来から公知の任意の手段を使
用することができる。具体的には、含浸、サイズプレ
ス、スプレー等による塗布方法、ロールコーター、コン
マコーター、スリットダイコーター等による塗工方式を
挙げることができ、更にグラビアコーター、ロータリー
スクリーン等による印刷等の手段で、複合シートの全体
に或いは複合シートの紙シート側に適宜選択して含有さ
せることができる。特に、この高圧水柱流を施した複合
シートを乾燥することなく、複合シートの水分を公知の
ロールプレスのような絞り機でJIS P 8127に
よる水分で15〜75重量%、好ましくは30〜70重
量%の範囲に調整した後、複合シートの紙シート側から
のみ、水不溶性で接着機能を有する樹脂をスプレー方式
にて塗布する方法が好適である。
As a means for incorporating the above-mentioned resin made of a synthetic polymer having an adhesive function into a composite sheet in which pulp fibers and long fibers are entangled, any conventionally known means can be used. Specifically, impregnation, size press, a coating method by spraying, a roll coater, a comma coater, a coating method by a slit die coater, and the like, further, such as a gravure coater, printing by a rotary screen, etc., It can be contained in the entire composite sheet or on the paper sheet side of the composite sheet by appropriately selecting it. In particular, without drying the composite sheet subjected to this high-pressure water column flow, the moisture content of the composite sheet is 15 to 75% by weight, preferably 30 to 70% by weight, according to JIS P 8127 by a squeezing machine such as a known roll press. A method in which a water-insoluble resin having an adhesive function is applied by a spray method only from the paper sheet side of the composite sheet after adjusting to the range of 10% is preferable.

【0025】湿潤状態で複合シートの紙シート側にスプ
レーすると、樹脂のシート内部への迅速な浸透が生じ、
紙シート側は勿論、スパンボンド不織布側にも均一に樹
脂を含有させることができ、吸水性、保水性、柔軟性、
拭き取り性等の性能を損なうことなく十分な耐洗濯性を
複合シートに付与することができる。この方法におい
て、複合シートの水分が75重量%を越えると、シート
内部に水分が過剰に存在するため、樹脂が紙シート側よ
り浸透してスパンボンド不織布側までに到達する時間が
長くなり、逆に、複合シートの水分が15重量%未満の
場合、スプレーにて塗布した樹脂のシート内部への浸透
が困難となり、スパンボンド不織布側まで樹脂が到達し
ないので、洗濯時にスパンボンド不織布側からのパルプ
繊維の脱落を防止するためには樹脂の塗布量を増やす
か、複合シートの両面に樹脂をスプレー塗布しなければ
ならなくなり、結果的に拭き布の柔軟性、吸水性及び保
水性が低下するので好ましくはない。又この方法では、
複合シートに樹脂を含有させる前に加熱乾燥をする必要
がなく、しかもオンラインで樹脂を含有させることがで
きるので熱効率と操業効率が極めて優れる。
Spraying the paper side of the composite sheet in the wet state results in rapid penetration of the resin into the sheet,
Not only the paper sheet side, but also the spunbonded nonwoven fabric side can be made to contain the resin uniformly, and water absorption, water retention, flexibility,
Sufficient washing resistance can be imparted to the composite sheet without impairing the performance such as wiping property. In this method, when the water content of the composite sheet exceeds 75% by weight, since the water content is excessive inside the sheet, it takes longer for the resin to permeate from the paper sheet side and reach the spunbonded nonwoven fabric side. In addition, when the water content of the composite sheet is less than 15% by weight, it becomes difficult for the resin applied by spraying to penetrate inside the sheet, and the resin does not reach the spunbonded nonwoven fabric side. In order to prevent the fibers from falling off, it is necessary to increase the coating amount of the resin or spray the resin on both sides of the composite sheet, and as a result, the softness, water absorption and water retention of the wiping cloth decrease. Not preferred. Moreover, in this method,
It is not necessary to heat and dry the resin before the resin is contained in the composite sheet, and since the resin can be contained online, the thermal efficiency and the operation efficiency are extremely excellent.

【0026】本発明で用いるαセルロース含有率が90
重量%以上のパルプ繊維は、残留ヘミセルロース量が少
なく、腰があり、この繊維を含有する紙シートは湿潤状
態で圧縮されても潰れ難く、非常に柔軟性の高いものと
なる。以上説明したように、αセルロースの含有率が9
0重量%以上のパルプ繊維を含有する紙シートとスパン
ボンド不織布との積層体に高圧水柱流を施し、繊維同士
を交絡一体化した後に得られる複合シートに、更に合成
高分子からなる樹脂を塗布或いは含浸により含有させ、
その後加熱処理されて得られる複合シートからなる拭き
布は、前記樹脂を含有させる前に圧縮を伴う絞り操作を
経た後でも嵩高で拭き布として優れた柔軟性、保水性、
吸水性及び耐洗濯性を有し、特に拭き取り性が顕著に優
れており、かつ使用済みの拭き布は機械的な洗濯或いは
手による揉み洗いによって汚れを除去した後も、シート
の厚み方向への潰れがなく、嵩高で、繰り返し再使用す
ることが可能である。この拭き布は、所望に応じて、水
やプロピレングリコール等の湿潤剤、アルコール類やパ
ラ安息香酸エステル等の抗菌剤、防かび剤、香料等の薬
剤等が付与されても良く、又は、そのような添加剤なし
で、工業ワイパー、ウェス、カウンタークロス、ふき
ん、雑巾等として好適に用いられる。
The α-cellulose content used in the present invention is 90.
Pulp fibers in an amount of not less than wt% have a small amount of residual hemicellulose and are elastic, and a paper sheet containing this fiber is hard to be crushed even when compressed in a wet state, and has very high flexibility. As described above, the content rate of α-cellulose is 9
A composite sheet obtained by subjecting a laminate of a paper sheet containing 0% by weight or more of pulp fibers and a spunbonded nonwoven fabric to a high-pressure water column flow to entangle and integrate the fibers with each other and further applying a resin made of a synthetic polymer Alternatively, it is contained by impregnation,
A wiping cloth made of a composite sheet obtained by being heat-treated thereafter is bulky and has excellent flexibility as a wiping cloth even after undergoing a squeezing operation involving compression before containing the resin, and water retention,
It has water absorbency and wash resistance, and is particularly excellent in wiping-off property, and the used wiping cloth does not spread in the thickness direction of the sheet even after removing stains by mechanical washing or rubbing by hand. It is crush-free, bulky, and can be reused repeatedly. This wiping cloth may be provided with a wetting agent such as water or propylene glycol, an antibacterial agent such as alcohols and parabenzoic acid ester, a fungicide, a chemical such as a fragrance, or the like, if desired. It is suitably used as an industrial wiper, a waste cloth, a counter cloth, a cloth, a rag, etc. without such additives.

【0027】[0027]

【実施例】 以下に実施例を挙げて本発明をより具体的
に説明するが、勿論本発明はこれらによって限定される
ものではない。尚、実施例及び比較例において%とある
ものは全て重量%を示す。
[Examples] The present invention will be described in more detail with reference to the following examples, but the present invention is not limited thereto. In the examples and comparative examples, all percentages indicate% by weight.

【0028】実施例1 ポリプロピレン長繊維が集積されてなり、かつこのポリ
プロピレン長繊維相互間が自己融着された点融着域を多
数持つスパンボンド不織布を準備した。このスパンボン
ド不織布を構成する長繊維の繊度は、2.3デニールで
あり、スパンボンド不織布の坪量は、14g/m2であ
った。点融着区域は、0.08mm2のものが37.5
個/cm2で、不織布全表面積当り3面積%であった。
次いで、市販の溶解パルプ(米国Ketchikan社
製、商品名:K−120−N、αセルロース含有率:9
0.7%)と針葉樹晒クラフトパルプを用いて、溶解パ
ルプの含有率が絶乾パルプ全重量当り25%の混合パル
プとし、この混合パルプスラリーを用いてJIS P
8209に準じて実験室用角型手抄きマシーンで紙シー
トを作製した。得られた紙シートのJIS P 812
4による坪量は95g/m2であり、JIS P 81
18による密度は0.43g/cm3であった。
Example 1 A spunbonded non-woven fabric was prepared in which polypropylene filaments were accumulated and which had a large number of point fusion zones in which the polypropylene filaments were self-bonded to each other. The fineness of the long fibers constituting this spunbonded nonwoven fabric was 2.3 denier, and the basis weight of the spunbonded nonwoven fabric was 14 g / m 2 . The spot fusion area is 37.5 for 0.08 mm 2.
The number of particles / cm 2 was 3 area% based on the total surface area of the nonwoven fabric.
Next, commercially available dissolving pulp (Ketchikan, USA, trade name: K-120-N, α-cellulose content: 9
0.7%) and bleached softwood kraft pulp to make a mixed pulp having a dissolved pulp content of 25% based on the total dry pulp weight, and using this mixed pulp slurry, JIS P
Paper sheets were made according to 8209 in a laboratory square handmade machine. JIS P 812 of the obtained paper sheet
No. 4 basis weight is 95 g / m 2 , and JIS P 81
The density according to 18 was 0.43 g / cm 3 .

【0029】次に、20cm×25cmの大きさに裁断
した紙シートを同じ大きさの前記スパンボンド不織布の
上に積層した。スパンボンド不織布:紙シートの絶乾坪
量比は1:6.2であった。次に、紙シートが上に位置
し、スパンボンド不織布が下に位置するようにして、積
層体を金網で形成された移送コンベア上に載置し、この
積層体を20m/分の速度で移送させながら、孔径0.
12mmのノズル孔が0.64mm間隔で千鳥状に並ん
でいる高圧水柱流噴出装置を用いて、50kg/cm2
の水圧で高圧水柱流を噴出させ、紙シートの表面から不
織布側に向けて前記高圧水柱流を通過させ、紙シートの
パルプ繊維とスパンボンド不織布の長繊維とが交絡一体
化された複合シートを得た。この複合シートを二軸で加
圧が可能なプレスロールで脱水し、JIS P 812
7による水分で70.7%とした後、120℃の送風式
乾燥器で乾燥し、JIS法による水分で2.0%とし
た。
Next, a paper sheet cut into a size of 20 cm × 25 cm was laminated on the spunbonded nonwoven fabric of the same size. The absolute dry basis weight ratio of the spunbond nonwoven fabric: paper sheet was 1: 6.2. Next, the laminated body was placed on a transfer conveyor formed of a wire mesh so that the paper sheet was on the upper side and the spunbonded nonwoven fabric was on the lower side, and the laminated body was transferred at a speed of 20 m / min. While making the hole diameter 0.
Using a high-pressure water column flow jetting device in which 12 mm nozzle holes are arranged in a staggered pattern at 0.64 mm intervals, 50 kg / cm 2
A high pressure water column flow is jetted by the water pressure of, and the high pressure water column flow is passed from the surface of the paper sheet toward the nonwoven fabric side, and a composite sheet in which pulp fibers of the paper sheet and long fibers of the spunbonded nonwoven fabric are entangled and integrated is formed. Obtained. This composite sheet is dehydrated with a press roll that can be pressurized by two axes, and then JIS P 812 is used.
After adjusting the water content according to No. 7 to 70.7%, it was dried with a blast dryer at 120 ° C., and the water content according to JIS method was adjusted to 2.0%.

【0030】その後、接着機能を有する合成高分子の樹
脂として自己架橋型アクリル樹脂のエマルジョン(日本
合成ゴム社製、商品番号:AE−948、ガラス転移温
度:−47℃)を用いて固形分濃度4.0%の接着剤液
を準備した。前記乾燥した複合シートをこの接着剤液に
浸漬した後、絞り機にて余剰の接着剤を絞り出し、その
後送風乾燥機にて、120℃で5分間保持し加熱乾燥を
行い、JIS法による水分で0.05%の複合シートか
らなる拭き布を得た。この拭き布へのアクリル樹脂の固
形分としての含有量は、絶乾ベースで4.0g/m
2(紙シート重量当り4.2%)であった。
Thereafter, a self-crosslinking acrylic resin emulsion (manufactured by Japan Synthetic Rubber Co., Ltd., product number: AE-948, glass transition temperature: -47 ° C.) was used as a synthetic polymer resin having an adhesive function to obtain a solid content concentration. A 4.0% adhesive solution was prepared. After immersing the dried composite sheet in this adhesive solution, the excess adhesive is squeezed out with a squeezing machine, and then it is heated and dried at 120 ° C. for 5 minutes with a blast dryer, and then dried with water according to the JIS method. A wipe made of 0.05% composite sheet was obtained. The content of the acrylic resin as a solid content in this wiping cloth was 4.0 g / m 2 on an absolute dry basis.
2 (4.2% based on the weight of the paper sheet).

【0031】得られた拭き布を次に示される試験法によ
り試験し、厚さ、柔軟性、吸水性、保水性、拭き取り性
及び耐洗濯性に対する品質を評価した。(1)厚さ 拭き布の厚さは、JIS L 1906に準拠して、荷
重10kpaで測定した。(2)柔軟性 拭き布の柔軟性を手触りによる官能で評価した。官能評
価は、次の5段階で行った。 5・・・極めて柔軟であった。 4・・・柔軟であった。 3・・・柔軟性は普通であった 2・・・柔軟性にやや劣っていた。 1・・・柔軟性に劣っていた。(3)吸水性 吸水性としてはJIS L 1096の6.26.1滴
下法に示された方法で測定した吸水速度にて評価した。
吸水性は、吸水速度が1.5秒以下であれば実用的に問
題ない。
The obtained wipes were tested by the test methods shown below to evaluate quality for thickness, flexibility, water absorption, water retention, wipeability and wash resistance. (1) Thickness The thickness of the wiping cloth was measured with a load of 10 kpa according to JIS L1906. (2) Softness The softness of the wiping cloth was evaluated by the sense of touch. The sensory evaluation was carried out in the following 5 stages. 5 ... It was extremely flexible. 4 ... It was flexible. 3 ... The flexibility was normal. 2 ... The flexibility was slightly inferior. 1 ... Inferior in flexibility. (3) Water absorption The water absorption was evaluated by the water absorption rate measured by the method described in the JIS L 1096 6.26.1 dropping method.
The water absorption is practically no problem if the water absorption speed is 1.5 seconds or less.

【0032】(4)保水性 保水性は、拭き布を10cm×10cmの大きさに断裁
して、その4枚を試料として用い、JIS P 812
4に従って試料の絶乾質量(W0)を測定した後、6リ
ットルの蒸留水が入れてある10リットル容量の容器内
に室温で試料を1分間浸漬し、次いで試料を水中から取
り出し、1分間水を滴り落とした後、その試料の質量
(W1)を測定し、保水率(%)={(W1−W0)/
W0}×100を求め、数値の高いものほど、保水性が
良好とした。保水率が400〜600%であれば実用に
適している。(5)拭き取り性 拭き取り性は、拭き布を10cm×10cmの大きさに
断裁して、その2枚を試料として用い、直径5cmで
1.6kgの円筒形重りの周囲に試料を2枚重ねて固定
する。30cm×50cmの大きさのゴムシート上に蒸
留水を5g載せ、前記試料を固定した円筒形重りにて前
記蒸留水を1回拭き取り、ゴムシート上に残った蒸留水
の重量を測定し、これを拭き取り残量として求め、数値
の小さいものを良好とした。拭き取り残量が0.5g以
下であれば実用的に問題はない。
(4) Water retention As for water retention, a wipe cloth was cut into a size of 10 cm × 10 cm, and four pieces thereof were used as a sample according to JIS P 812.
After measuring the absolute dry mass (W0) of the sample in accordance with No. 4, immerse the sample in a 10 liter container containing 6 liters of distilled water at room temperature for 1 minute, then remove the sample from water and remove it for 1 minute with water. After dripping, the mass (W1) of the sample was measured, and the water retention rate (%) = {(W1-W0) /
W0} × 100 was determined, and the higher the value, the better the water retention. When the water retention rate is 400 to 600%, it is suitable for practical use. (5) Wiping property The wiping property is obtained by cutting a wiping cloth into a size of 10 cm × 10 cm, using two of them as samples, and stacking two samples around a cylindrical weight of 5 cm in diameter and 1.6 kg. Fix it. 5 g of distilled water was placed on a rubber sheet having a size of 30 cm × 50 cm, the distilled water was wiped off once with a cylindrical weight to which the sample was fixed, and the weight of the distilled water remaining on the rubber sheet was measured. Was determined as the remaining amount of wiping, and the one with the smaller numerical value was regarded as good. If the remaining wipe amount is 0.5 g or less, there is no practical problem.

【0033】(6)耐洗濯性 耐洗濯性は、拭き布を10cm×10cmの大きさに断
裁して、その10枚を試料として使用し、試料の絶乾質
量(W0)を測定し、次に洗濯機(三洋電機社製、電機
洗濯機、SW−56型)に30リットルの水を入れ、標
準洗いにて10分間撹拌を行って洗濯を行い、その後試
料を取り出して手絞りで脱水した後、実験室用熱風循環
式乾燥機で105℃で60分間乾燥し、試料の絶乾質量
(W1)を測定し、洗濯前後の重量変化率(%)=
{(W0−W1)/W0}×100を求め、数値の小さ
いものほど耐洗濯性に優れている。重量変化率が3%未
満にあれば、実用的に問題はない。
(6) Washing resistance As for the washing resistance, a wipe cloth was cut into a size of 10 cm × 10 cm, 10 pieces of the cut piece were used as samples, and the absolute dry mass (W0) of the samples was measured. Into a washing machine (manufactured by Sanyo Denki Co., Ltd., electric washing machine, SW-56 type), 30 liters of water was put, and standard washing was performed for 10 minutes with stirring to wash, and then the sample was taken out and dehydrated by hand squeezing. After that, the sample was dried at 105 ° C. for 60 minutes in a laboratory hot air circulation dryer, and the absolute dry mass (W1) of the sample was measured, and the weight change rate (%) before and after washing =
{(W0-W1) / W0} × 100 was obtained, and the smaller the value, the better the washing resistance. If the weight change rate is less than 3%, there is no practical problem.

【0034】実施例2 針葉樹晒クラフトパルプ(αセルロース含有率:87.
5重量%)を固形分濃度17.5%の水酸化ナトリウム
溶液に液温20℃で1時間浸漬した後、液からパルプを
取り出し、水で洗浄した。洗浄は、洗浄液のpHが中性
になるまで繰り返し十分行い、αセルロース含有率が1
00%のアルカリマーセル化パルプを得た。次いで、得
られたアルカリマーセル化パルプと針葉樹晒クラフトパ
ルプを用いて、アルカリマーセル化パルプの含有率が絶
乾パルプ全重量当り60%の混合パルプとし、この混合
パルプスラリーを用いてJIS P 8209に準じて
実験室用角型手抄きマシーンで紙シートを作製した。得
られた紙シートの坪量は95g/m2であり、密度は
0.35g/cm3であった。前記紙シートを用いたこ
と以外は、実施例1と同様にして高圧水柱流を施し、更
にアクリル樹脂を含有させた後乾燥して複合シートから
なる拭き布を得、その品質を評価した。この拭き布への
アクリル樹脂の固形分としての含有量は、絶乾ベースで
4.1g/m2(紙シート重量当り4.3%)であっ
た。
Example 2 Softwood bleached kraft pulp (α-cellulose content: 87.
5% by weight) was immersed in a sodium hydroxide solution having a solid concentration of 17.5% at a liquid temperature of 20 ° C. for 1 hour, and then the pulp was taken out from the liquid and washed with water. The washing is repeatedly and sufficiently performed until the pH of the washing liquid becomes neutral, and the α-cellulose content is 1
A 00% alkaline mercerized pulp was obtained. Then, using the obtained alkali mercerized pulp and bleached softwood kraft pulp, a mixed pulp having a content of the alkali mercerized pulp of 60% based on the total dry pulp weight was used, and this mixed pulp slurry was subjected to JIS P 8209. A paper sheet was prepared using a square hand-made machine for laboratories. The basis weight of the obtained paper sheet was 95 g / m 2 , and the density was 0.35 g / cm 3 . A high pressure water column flow was applied in the same manner as in Example 1 except that the above-mentioned paper sheet was used, and an acrylic resin was further added, followed by drying to obtain a wiping cloth made of a composite sheet, and its quality was evaluated. The content of the acrylic resin as a solid content in this wiping cloth was 4.1 g / m 2 on an absolute dry basis (4.3% based on the weight of the paper sheet).

【0035】実施例3 ポリエチレンテレフタレート長繊維が集積されてなり、
かつこのポリエチレンテレフタレート長繊維相互間が自
己融着された点融着域を多数持つスパンボンド不織布を
準備した。このスパンボンド不織布を構成する長繊維の
繊度は、2.0デニールであり、スパンボンド不織布の
坪量は、12g/m2であった。点融着区域は、0.0
9mm2のものが110個/cm2で、不織布全表面積当
り10面積%であった。次いで、実施例2で調製したア
ルカリマーセル化パルプと針葉樹晒クラフトパルプを用
いて、アルカリマーセル化パルプの含有率が絶乾パルプ
全重量当り10%の混合パルプとし、この混合スラリー
を用いてJIS P 8209に準じて実験室用角型手
抄きマシーンで紙シートを作製した。得られた紙シート
の坪量は95g/m2であり、密度は0.48g/cm3
であった。次に、スパンボンド不織布の上に、前記紙シ
ートを積層し、積層体とした。不織布と紙シートの絶乾
坪量比は、不織布:紙シートが1:7.3であった。
Example 3 Polyethylene terephthalate filaments were accumulated,
In addition, a spunbonded non-woven fabric having a large number of point-fused regions in which the polyethylene terephthalate long fibers were self-fused between themselves was prepared. The fineness of the long fibers constituting this spunbonded nonwoven fabric was 2.0 denier, and the basis weight of the spunbonded nonwoven fabric was 12 g / m 2 . The spot fusion area is 0.0
The number of particles of 9 mm 2 was 110 / cm 2 , which was 10% by area based on the total surface area of the nonwoven fabric. Then, using the alkali mercerized pulp and the bleached softwood kraft pulp prepared in Example 2, a mixed pulp having a content of the alkali mercerized pulp of 10% based on the total weight of the absolutely dried pulp was used, and this mixed slurry was used to JIS P Paper sheets were made according to 8209 in a laboratory square handmade machine. The resulting paper sheet has a basis weight of 95 g / m 2 and a density of 0.48 g / cm 3.
Met. Next, the above-mentioned paper sheet was laminated on the spunbonded nonwoven fabric to form a laminate. The absolute dry basis weight ratio of the non-woven fabric and the paper sheet was 1: 7.3 for the non-woven fabric: paper sheet.

【0036】その後、紙シートが上に位置し、不織布が
下に位置するようにして、金網で形成された移送コンベ
ア上に積層体を載置し、この積層体を15m/分の速度
で移送させながら、孔径0.15mmのノズル孔が1m
m間隔で並んでいる高圧水柱流噴出装置を用いて、75
kg/cm2の水圧で高圧水柱流を噴出させ、前記紙シ
ートの表面から不織布側に向けて高圧水柱流を通過さ
せ、パルプ繊維と長繊維とを交絡させ、紙シートと不織
布が一体化された複合シートを得た。この複合シートを
二軸で加圧が可能なプレスロールで脱水し、JIS法に
よる水分で73.2%の湿潤状態にある複合シートを得
た。次に、自己架橋型エチレン・酢酸ビニル・アクリル
共重合体エマルジョン(住友化学社製、商品番号:S−
900、ガラス転移温度:−20℃)を固形分濃度40
%に希釈した後、3kg/cm2の圧力で湿潤状態の複
合シートの表面(紙シート側)へ噴霧して、樹脂の含有
量が5.5g/m2(紙シート重量当り5.8%)とな
るように調整した後、120℃に保持された送風式乾燥
器で1分間加熱乾燥を行い、JIS法による水分で0.
07%の複合シートからなる拭き布を得、実施例1と同
様にしてその品質を評価した。
After that, the laminated body was placed on a transfer conveyor formed of a wire mesh so that the paper sheet was on the upper side and the non-woven fabric was on the lower side, and the laminated body was transferred at a speed of 15 m / min. While making the nozzle hole with a hole diameter of 0.15 mm 1 m
Using a high-pressure water column flow jetting device lined up at m intervals, 75
A high-pressure water column flow is jetted with a water pressure of kg / cm 2 , and the high-pressure water column flow is passed from the surface of the paper sheet toward the non-woven fabric side to entangle pulp fibers and long fibers to integrate the paper sheet and the non-woven fabric. Obtained a composite sheet. This composite sheet was dehydrated with a press roll capable of being biaxially pressed to obtain a composite sheet in a wet state of 73.2% with water according to the JIS method. Next, a self-crosslinking ethylene / vinyl acetate / acrylic copolymer emulsion (manufactured by Sumitomo Chemical Co., Ltd., product number: S-
900, glass transition temperature: -20 ° C) with a solid concentration of 40
% And then sprayed onto the surface of the wet composite sheet (paper sheet side) at a pressure of 3 kg / cm 2 to give a resin content of 5.5 g / m 2 (5.8% based on the weight of the paper sheet). ), And then heat-dried for 1 minute with a blower dryer maintained at 120 ° C.
A wiping cloth composed of a composite sheet of 07% was obtained, and its quality was evaluated in the same manner as in Example 1.

【0037】比較例1 針葉樹晒クラフトパルプ100%のパルプスラリーを用
いてJIS P 8209に準じて実験室用各型手抄き
マシーンで紙シートを作製した。得られた紙シートの坪
量は95g/m2、密度は0.53g/cm3であった。
前記シートを用いたこと以外は、実施例3と同様にして
高圧水柱流を施した後、スプレーにて樹脂を含有させ、
複合シートからなる拭き布を得、実施例1と同様にして
その品質を評価した。
Comparative Example 1 A paper sheet was prepared by using a pulp slurry of 100% bleached softwood kraft pulp in accordance with JIS P 8209 with each type of laboratory handmade machine. The obtained paper sheet had a basis weight of 95 g / m 2 and a density of 0.53 g / cm 3 .
A high-pressure water column flow was applied in the same manner as in Example 3 except that the above-mentioned sheet was used, and then a resin was added by spraying,
A wiping cloth made of a composite sheet was obtained, and its quality was evaluated in the same manner as in Example 1.

【0038】比較例2 実施例2で調製したアルカリマーセル化パルプと針葉樹
晒クラフトパルプを用いて、アルカリマーセル化パルプ
の含有率が絶乾パルプ全重量当り3%の混合パルプと
し、この混合スラリーを用いてJIS P 8209に
準じて実験室用角型手抄きマシーンで、坪量95g/m
2、密度0.49g/cm3の紙シートを作製したこと以
外は、実施例3と同様にして高圧水柱流を施した後、ス
プレーにて樹脂を含有させ、複合シートからなる拭き布
を得、実施例1と同様にしてその品質を評価した。
Comparative Example 2 Using the alkali mercerized pulp and bleached softwood kraft pulp prepared in Example 2, a mixed pulp having an alkali mercerized pulp content of 3% based on the total dry pulp weight was prepared, and this mixed slurry was used. Using a square hand-made machine for laboratory according to JIS P 8209, basis weight 95g / m
2 , except that a paper sheet having a density of 0.49 g / cm 3 was prepared, a high pressure water column flow was applied in the same manner as in Example 3, and then a resin was added by spraying to obtain a wiping cloth made of a composite sheet. The quality was evaluated in the same manner as in Example 1.

【0039】実施例と比較例で得られた評価結果を表1
に示した。
Table 1 shows the evaluation results obtained in Examples and Comparative Examples.
It was shown to.

【0040】[0040]

【表1】 [Table 1]

【0041】表1から分かるように、本発明により得ら
れる複合シートからなる拭き布は、厚さが大きく、柔軟
性、保水性及び耐洗濯性の性能が優れ、とりわけ吸水性
と拭き取り性が顕著に優れている(実施例1〜3)。こ
れに対して、αセルロース含有率の低い(87.5%)
パルプ繊維のみからなる紙シートを用いた場合(比較例
1)やαセルロース含有率が90%以上のパルプ繊維の
配合率が低い場合(比較例2)は、拭き布の厚さが小さ
くなり、柔軟性、吸水性、保水性が相体的に悪くなり、
拭き取り性は顕著に悪化する。
As can be seen from Table 1, the wiping cloth made of the composite sheet obtained by the present invention has a large thickness and is excellent in flexibility, water retention and washing resistance, and particularly water absorption and wiping properties are remarkable. Is excellent (Examples 1 to 3). On the other hand, low α-cellulose content (87.5%)
When a paper sheet consisting of only pulp fibers is used (Comparative Example 1) or when the blending ratio of pulp fibers having an α-cellulose content of 90% or more (Comparative Example 2) is small, the thickness of the wiping cloth becomes small, Flexibility, water absorption, and water retention become poor relative to each other,
Wipeability is markedly deteriorated.

【0042】[0042]

【発明の効果】 以上説明したごとく、本発明は、圧縮
潰れに抵抗を有し、嵩高で、拭き布として優れた柔軟
性、吸水性、保水性及び耐洗濯性を有し、特に拭き取り
性が顕著に優れており、工業用ワイパー、ウェス、カウ
ンタークロス、ふきん、雑巾等として好適な拭き布を提
供できるという効果を奏する。
As described above, the present invention has resistance to compression crushing, is bulky, and has excellent flexibility, water absorption, water retention and washing resistance as a wiping cloth, and in particular, has a wiping property. It is remarkably excellent and has the effect of providing a wiping cloth suitable as an industrial wiper, waste cloth, counter cloth, cloth, rag, or the like.

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 FI 技術表示箇所 D06M 15/00 D06M 15/00 17/00 D01D 5/098 // D01D 5/098 D06M 17/00 G ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI Technical display location D06M 15/00 D06M 15/00 17/00 D01D 5/098 // D01D 5/098 D06M 17/00 G

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 熱可塑性重合体の樹脂組成物を溶融紡糸
し、紡糸された長繊維フィラメント群を捕集してウェブ
とした後、該ウェブに規則的で断続的な自己融着区域を
設けて得られるスパンボンド不織布の片面に、パルプ繊
維からなる紙シートを積層し、該紙シートの表面側から
スパンボンド不織布側に向けて高圧水柱流を貫通させ、
パルプ繊維と不織布の長繊維とを交絡一体化させて複合
シートとした後、該複合シートに合成樹脂を含有させて
なる拭き布において、該紙シートがαセルロース含有率
が90重量%以上のパルプ繊維を5〜75重量%含有す
ることを特徴とする拭き布。
1. A resin composition of a thermoplastic polymer is melt-spun, a spun filament fiber group is collected to form a web, and the web is provided with regular and intermittent self-fusion zones. On one side of the spunbonded nonwoven fabric obtained as described above, a paper sheet made of pulp fibers is laminated, and a high pressure water column flow is passed through from the surface side of the paper sheet toward the spunbonded nonwoven fabric side,
In a wiping cloth obtained by entangled and integrating pulp fibers and long fibers of a non-woven fabric into a composite sheet, the composite sheet contains a synthetic resin, and the paper sheet contains pulp having an α-cellulose content of 90% by weight or more. A wiping cloth comprising 5 to 75% by weight of fibers.
JP7243412A 1995-09-21 1995-09-21 Wiping cloth Pending JPH0985870A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7243412A JPH0985870A (en) 1995-09-21 1995-09-21 Wiping cloth

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7243412A JPH0985870A (en) 1995-09-21 1995-09-21 Wiping cloth

Publications (1)

Publication Number Publication Date
JPH0985870A true JPH0985870A (en) 1997-03-31

Family

ID=17103487

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7243412A Pending JPH0985870A (en) 1995-09-21 1995-09-21 Wiping cloth

Country Status (1)

Country Link
JP (1) JPH0985870A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004338384A (en) * 2003-04-02 2004-12-02 Reifenhaeuser Gmbh & Co Mas Fab Manufacturing method for fiber laminated body
JP2005330608A (en) * 2004-05-18 2005-12-02 Kao Corp Sheet substrate for wet sheet
JP2007527472A (en) * 2003-10-02 2007-09-27 レイヨニーア ティーアールエス ホールディングス インコーポレイテッド Cross-linked cellulose fiber and method for producing the same
JP2018202124A (en) * 2017-05-31 2018-12-27 大王製紙株式会社 Pulp-mixed nonwoven fabric wipe, and method of manufacturing the same
JP2019063221A (en) * 2017-09-29 2019-04-25 大王製紙株式会社 Nonwoven fabric duster and manufacturing method of the same
WO2022069689A1 (en) 2020-10-02 2022-04-07 Teknoweb Materials S.R.L. Spunlace composite web comprising staple fibers, short absorbent fibers and binder

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004338384A (en) * 2003-04-02 2004-12-02 Reifenhaeuser Gmbh & Co Mas Fab Manufacturing method for fiber laminated body
JP2007527472A (en) * 2003-10-02 2007-09-27 レイヨニーア ティーアールエス ホールディングス インコーポレイテッド Cross-linked cellulose fiber and method for producing the same
JP4787163B2 (en) * 2003-10-02 2011-10-05 レイヨニーア ティーアールエス ホールディングス インコーポレイテッド Cross-linked cellulose fiber and method for producing the same
JP2005330608A (en) * 2004-05-18 2005-12-02 Kao Corp Sheet substrate for wet sheet
JP2018202124A (en) * 2017-05-31 2018-12-27 大王製紙株式会社 Pulp-mixed nonwoven fabric wipe, and method of manufacturing the same
JP2019063221A (en) * 2017-09-29 2019-04-25 大王製紙株式会社 Nonwoven fabric duster and manufacturing method of the same
WO2022069689A1 (en) 2020-10-02 2022-04-07 Teknoweb Materials S.R.L. Spunlace composite web comprising staple fibers, short absorbent fibers and binder

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