JP2000334869A - Production of laminate of spun bonded material and paper - Google Patents

Production of laminate of spun bonded material and paper

Info

Publication number
JP2000334869A
JP2000334869A JP11180494A JP18049499A JP2000334869A JP 2000334869 A JP2000334869 A JP 2000334869A JP 11180494 A JP11180494 A JP 11180494A JP 18049499 A JP18049499 A JP 18049499A JP 2000334869 A JP2000334869 A JP 2000334869A
Authority
JP
Japan
Prior art keywords
paper
resin
bonded material
spun bonded
laminate
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
JP11180494A
Other languages
Japanese (ja)
Inventor
Takeshi Tsukagoshi
壮 塚越
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.)
K S T KK
Original Assignee
K S T KK
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 K S T KK filed Critical K S T KK
Priority to JP11180494A priority Critical patent/JP2000334869A/en
Publication of JP2000334869A publication Critical patent/JP2000334869A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined

Landscapes

  • Laminated Bodies (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

PROBLEM TO BE SOLVED: To make a tear hard to generate and to improve air permeability and hand by spraying a hot-melt resin on at least the single surface of a synthetic resin spun bonded material or paper by a melt blowing method and laminating paper or a synthetic resin spun bonded material to the resin applied single surface of the spun bonded material or paper. SOLUTION: A hot-melt resin is sprayed on at least the single surface of a synthetic resin spun bonded material or paper by a melt blowing method and paper or a synthetic resin spun bonded material is laminated to the resin applied single surface of the spun bonded material or paper. The basis wt. of the spun bonded material is pref. 7-50 g/m2 and that of the paper is pref. about 15-50 g/m2. As a method for laminating the spun bonded material and the paper by the hot-melt resin, the melt blowing method is optimum. As the hot-melt resin, a polyolefinic resin such as polyethylene, copolymerized polyethylene represented, for example, by an ethylene/vinyl acetate copolymer or the like, synthetic rubber, a polyamide resin or a polyester resin is pref.

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、障子紙、包装紙、
フィルターなどに好適に使用することのできるスパンボ
ンドと紙との積層体の製造方法に関するものである。TECHNICAL FIELD The present invention relates to shoji paper, wrapping paper,
The present invention relates to a method for producing a laminate of spunbond and paper which can be suitably used for a filter or the like.

【０００２】[0002]

【従来の技術】通常の紙は、一般に非常に破れやすいも
のであり、これを改善するために種々の工夫がなされて
きた。たとえば、天然のパルプ１００％からなる紙に代
わってパルプに強度の大きいレーヨンや合成繊維を混抄
し、ポリビニルアルコール系接着繊維あるいはオレフィ
ン系溶融繊維をバインダー繊維として用いて紙の強度を
向上させる方法が提案されているが、未だ充分とはいえ
ない。2. Description of the Related Art Ordinary paper is generally very fragile, and various attempts have been made to improve this. For example, a method of mixing high-strength rayon or synthetic fiber into pulp instead of paper made of 100% natural pulp and using polyvinyl alcohol-based adhesive fiber or olefin-based molten fiber as a binder fiber to improve the strength of the paper is known. Proposed, but not yet sufficient.

【０００３】ポリエチレンの押し出しラミネート法によ
って２枚の紙の間にポリエチレン薄層を存在させて紙の
積層体の強度を向上させる方法も提案されているが、こ
の場合には中心部分にフィルム状ポリエチレンが存在す
ることになるので、紙が本来有している通気性が著しく
損なわれるという欠点がある。[0003] A method of improving the strength of a paper laminate by providing a thin layer of polyethylene between two sheets of paper by extrusion lamination of polyethylene has also been proposed. However, there is a disadvantage that the air permeability inherent in the paper is significantly impaired.

【０００４】ネット状に形成されたホットメルトウェブ
を２枚の紙の間にはさんで、熱プレスによって紙の積層
体を作り、紙力の増強を図ることも提案されているが、
この場合には、ホットメルトウェブが高価なうえ、充分
な紙力の向上が得られないという欠点がある。[0004] It has also been proposed to sandwich a hot melt web formed in a net shape between two sheets of paper to form a paper laminate by hot pressing to increase paper strength.
In this case, the hot melt web is disadvantageous in that it is expensive and sufficient paper strength cannot be improved.

【０００５】この他、芯がポリエステルで、鞘がポリエ
チレンである繊維からなるスパンボンド（ユニチカ株式
会社製エルベス）を２枚の紙の間にはさんで熱カレンダ
ーによって三者を一体化する方法も試みられている。し
かし、この方法は、熱カレンダーに基づく通気性の低下
や紙の表面のてかり（光沢）を招くので、好ましくな
い。そのうえ、三者間がはがれ易く、剥離強度が不満足
となる欠点がある。[0005] In addition, there is also a method in which a spunbond (Elves manufactured by Unitika Ltd.) made of a fiber whose core is made of polyester and whose sheath is made of polyethylene is sandwiched between two sheets of paper to integrate the three members by a heat calendar. Attempted. However, this method is not preferable because it causes a decrease in air permeability based on the thermal calendar and a shine (gloss) on the surface of the paper. In addition, there is a drawback that the three members are easily peeled off and the peel strength becomes unsatisfactory.

【０００６】[0006]

【発明が解決しようとする課題】本発明は、このような
従来技術の欠点を改善し、破れにくく、しかも通気性が
あり、風合の良い紙とスパンボンドとの積層体を安価に
製造することのできる製造方法を提供することを目的と
するものである。SUMMARY OF THE INVENTION The present invention solves the above-mentioned drawbacks of the prior art, and makes it possible to produce a laminated body of paper and spunbond which is resistant to tearing, has good air permeability, and has a good feeling at low cost. It is an object of the present invention to provide a manufacturing method capable of performing the following.

【０００７】[0007]

【問題点を解決するための手段】本発明は、上記目的を
達成するものであって、合成樹脂製スパンボンドまたは
紙の少なくとも片面にメルトブローン法によりホットメ
ルト樹脂を吹きつけ、紙または合成樹脂製スパンボンド
を積層し、貼り合わせることを特徴とするスパンボンド
と紙との積層体の製造方法である。Means for Solving the Problems The present invention has been accomplished to achieve the above object, and a hot melt resin is sprayed on at least one surface of a synthetic resin spun bond or paper by a melt blown method to form a paper or synthetic resin. A method for producing a laminate of spunbond and paper, characterized by laminating and bonding spunbond.

【０００８】[0008]

【発明の実施の形態】以下、本発明を詳細に説明する。
本発明に用いられる合成樹脂製スパンボンドは、ポリプ
ロピレンなどのポリオレフィン系樹脂、ポリエチレンテ
レフタレートなどのポリエステル系樹脂、ナイロンなど
のポリアミド系樹脂からなる繊維で形成した不織布を樹
脂や再熱溶融により結合したものである。このスパンボ
ンドには、メルトブローン不織布が積層されていてもよ
い。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail.
The synthetic resin spunbond used in the present invention is obtained by bonding a nonwoven fabric formed of fibers made of a polyolefin resin such as polypropylene, a polyester resin such as polyethylene terephthalate, or a polyamide resin such as nylon by resin or reheat melting. It is. Melt blown nonwoven fabric may be laminated on this spun bond.

【０００９】これらのスパンボンドの目付は、７〜５０
ｇ／ｍ２の範囲が好ましく、特に１０〜３０ｇ／ｍ２の
ものが好ましい。スパンボンドの目付が７ｇ／ｍ２未満
の場合には、紙の補強効果が充分に得られない傾向があ
り、またスパンボンドの目付が５０ｇ／ｍ２を越える場
合には、コストが高くなる傾向がある。The basis weight of these spunbonds is 7 to 50.
ranges preferably g / m 2, particularly preferably those of 10 to 30 g / m 2. If the basis weight of the spun bond is less than 7 g / m 2 , the effect of reinforcing the paper tends to be insufficient, and if the basis weight of the spun bond exceeds 50 g / m 2 , the cost tends to be high. There is.

【００１０】本発明に用いられる紙は、通常の紙でよい
が、スパンボンドと貼り合わされて使用されるので、紙
の目付は通常その用途に用いられる紙の目付の半分程度
でよい。本発明に用いられる紙の目付は、１５〜５０ｇ
／ｍ２程度でよい。目付が１５ｇ／ｍ２の紙は入手し難
いし、目付が１５ｇ／ｍ２を越える紙は不経済である。The paper used in the present invention may be ordinary paper. However, since the paper is used after being bonded to a spun bond, the basis weight of the paper may be about half that of the paper usually used for the purpose. The basis weight of the paper used in the present invention is 15 to 50 g.
/ M 2 . Paper basis weight 15 g / m 2 is to difficult to obtain, paper basis weight exceeds 15 g / m 2 is uneconomical.

【００１１】本発明において、スパンボンドと紙とをホ
ットメルト樹脂によって貼りつける方法としては、メル
トブローン法が最適である。ホットメルト樹脂によって
貼りつける方法としては、コーター方式、ホィール方
式、粉体を用いる方式がほかに考えられが、これらは生
産速度が充分でなかったり、多くの樹脂量を要したり、
得られる積層体の品質などの点でいずれも好ましいもの
ではない。本発明においては、溶融樹脂を空気流により
吹きとばしてスパンボンドまたは紙に網状に塗布するメ
ルトブローン法が経済性、あるいは得られた積層体の通
気性、風合などの点で最適である。In the present invention, a melt blown method is most suitable as a method for attaching a spun bond and paper with a hot melt resin. Other methods of applying the hot melt resin include a coater method, a wheel method, and a method using powder.However, these methods do not have a sufficient production speed or require a large amount of resin.
Neither is preferable in terms of the quality of the obtained laminate. In the present invention, a melt blown method in which a molten resin is blown off by an air stream to apply it to a spunbond or paper in a net shape is optimal in terms of economy, air permeability and feeling of the obtained laminate.

【００１２】本発明に用いられるホットメルト樹脂とし
ては、各種のものを用いることができるが、たとえばポ
リエチレンやエチレンと酢酸ビニルとの共重合物に代表
される共重合ポリエチレンなどのポリオレフィン系樹
脂、合成ゴム系、ポリアミド系樹脂、ポリエステル系樹
脂などが好適に用いられる。As the hot melt resin used in the present invention, various ones can be used. For example, polyolefin resins such as polyethylene and copolymerized polyethylene represented by a copolymer of ethylene and vinyl acetate; Rubber-based, polyamide-based resins, polyester-based resins, and the like are preferably used.

【００１３】これらの樹脂は、スパンボンドと紙と貼り
合わせに際して、１〜１５ｇ／ｍ２の範囲、より好適に
は２〜１０ｇ／ｍ２の範囲で接着面に塗布される。樹脂
の塗布量が１ｇ／ｍ２未満の場合には、充分な接着強度
が得られず、反対に１５ｇ／ｍ２を越える場合には、不
経済であると同時に積層体の通気性や風合を損なうおそ
れがある。These resins are applied to the bonding surface in the range of 1 to 15 g / m 2 , more preferably in the range of 2 to 10 g / m 2 at the time of bonding the spun bond and the paper. When the coating amount of resin is less than 1 g / m 2 is not sufficient adhesive strength is obtained, if in excess of 15 g / m 2 Conversely, and breathable at the same time the laminate to be uneconomical feeling May be impaired.

【００１４】紙とスパンボンドとの貼り合わせ方法は、
紙またはスパンボンドの面にホットメルト樹脂をメルト
ブローン法によって連続的または非連続的に塗布し、そ
の塗布面を中心にして両者を接着する。スパンボンドの
両側に紙を接着する場合には、先ず紙とスパンボンドを
貼り合わせて２層の積層体を形成して、巻き取った後、
この２層の積層体のスパンボンド側に同様にしてホット
メルト樹脂を塗布し、その塗布面に紙を貼りつけて３層
の積層体を形成するか、紙にホットメルト樹脂を塗布
し、これを２層の積層体のスパンボンド側に貼りつけて
３層の積層体を形成するか、あるいはスパンボンドの両
側にホットメルト樹脂を連続的に塗布し、スパンボンド
の上下より同時に紙を供給し、一工程で３層の積層体を
形成する方法がある。スパンボンドの上下に接着される
紙は全く同一のものであってもよいし、それぞれ異なる
ものであってもよい。The method of bonding paper and spunbond is as follows.
A hot melt resin is continuously or discontinuously applied to the surface of paper or spunbond by a melt blown method, and the two are adhered around the application surface. When adhering paper to both sides of the spun bond, firstly, the paper and the spun bond are attached to form a two-layer laminate, and after winding,
A hot melt resin is applied to the spun bond side of the two-layer laminate in the same manner, and a paper is stuck to the coated surface to form a three-layer laminate, or the hot melt resin is applied to the paper. Is bonded to the spun bond side of the two-layer laminate to form a three-layer laminate, or hot melt resin is continuously applied to both sides of the spun bond, and paper is supplied simultaneously from above and below the spun bond. There is a method of forming a three-layer laminate in one step. The papers bonded on the upper and lower sides of the spun bond may be completely the same or may be different from each other.

【００１５】[0015]

【実施例】次に、実施例により本発明を具体的に説明す
る。Next, the present invention will be described specifically with reference to examples.

【００１６】実施例１ パルプ１００％からなる目付２０ｇ／ｍ２の紙に１７０
℃で溶融したノガワケミカル社製エチレン酢酸ビニル共
重合系樹脂ＤＨ６８５をメルトブローン法により空気温
度１７５℃、空気圧１．２ｋｇ／ｃｍ２の条件下で４ｇ
／ｍ２塗布し、その塗布面に目付２０ｇ／ｍ２のポリプ
ロピレンスパンボンドを連続的に供給して積層し、両者
を回転するロールの間にはさんで軽く圧力を加えて両者
を接着させ、８０ｍ／分の速度で巻きとった。得られた
２層の積層体のスパンボンド側に上記と同様の紙に上記
と同様にして塗布し、貼り合わせて３層が一体となった
積層体を得た。この積層体を電気掃除機のゴミ袋に用い
たところ、風合が良いので、装着性もよく、通気性に優
れており、極めて破れにくいものであった。Example 1 170 g of paper having a basis weight of 20 g / m 2 consisting of 100% pulp
4 g of ethylene vinyl acetate copolymer resin DH685 manufactured by Nogawa Chemical Co., Ltd. melted at 175 ° C. under the conditions of air temperature of 175 ° C. and air pressure of 1.2 kg / cm 2 by melt blown method.
/ M 2 is applied, and a polypropylene spun bond having a basis weight of 20 g / m 2 is continuously supplied to the application surface and laminated, and both are adhered by applying light pressure between rolls rotating between the two, The film was wound at a speed of 80 m / min. On the spun bond side of the obtained two-layer laminate, the same paper as above was applied in the same manner as described above, and bonded to obtain a three-layer integrated laminate. When this laminate was used for a garbage bag of a vacuum cleaner, it had a good feel, was easy to mount, was excellent in air permeability, and was extremely resistant to tearing.

【００１７】実施例２ パルプ１００％からなる目付１８ｇ／ｍ２の障子紙用の
紙に１８０℃で溶融したノ宇部興産社製オレフィン系樹
脂ＵＴ−２３３０をメルトブローン法により空気温度１
９０℃、空気圧１ｋｇ／ｃｍ２の条件下で４ｇ／ｍ２塗
布し、その塗布面に目付２０ｇ／ｍ２のポリプロピレン
スパンボンドを連続的に供給して積層し、両者を回転す
るロールの間にはさんで軽く圧力を加えて両者を接着さ
せ、８０ｍ／分の速度で巻きとった。つぎに、上記と同
様の紙のうえに、上記と同様にしてホットメルト樹脂を
塗布し、その塗布面に上記で得られた紙とスパンボンド
との積層体のスパンボンド側がくるように連続的に供給
し、回転するロールの間にはさんで軽く圧力をかけてス
パンボンドを中心層とし、両側に紙が配置された三層よ
りなる積層体を得た。この積層体は層間の剥離もなく、
障子紙として用いたところ、てかりもなく、少々の刺激
では破れることもなく、風合や通気性も満足できるもの
であった。Example 2 An olefin resin UT-2330 manufactured by Nobe Kosan Co., Ltd., which was melted at 180 ° C. on paper for a shoji paper made from 100% pulp and having a basis weight of 18 g / m 2 , was heated at an air temperature of 1 by a melt blown method.
4 g / m 2 is applied under the conditions of 90 ° C. and air pressure of 1 kg / cm 2 , and a polypropylene spun bond having a basis weight of 20 g / m 2 is continuously supplied to the application surface to be laminated, and the two are rotated between rolls. The two were glued together by applying light pressure, and wound at a speed of 80 m / min. Next, on the same paper as above, a hot melt resin is applied in the same manner as described above, and the hot melt resin is continuously applied so that the spun bond side of the laminate of the paper and the spun bond obtained above comes to the coated surface. And a light pressure was applied between the rotating rolls to obtain a laminate consisting of three layers, with the spunbond as the central layer and paper on both sides. This laminate has no delamination between layers,
When used as shoji paper, it was dazzling, did not break with a slight stimulus, and had a satisfactory feel and air permeability.

【００１８】実施例３ パルプ１００％からなる目付１８ｇ／ｍ２の紙を用い、
実施例１と同様にして１７０℃で溶融したノガワケミカ
ル社製エチレン酢酸ビニル共重合系樹脂ＤＨ６８５をメ
ルトブローン法により５ｇ／ｍ２塗布し、その塗布面に
目付１６ｇ／ｍ２のポリエステルスパンボンドを連続的
に供給して積層し、両者を回転するロールの間にはさん
で軽く圧力を加えて両者を接着させ、８０ｍ／分の速度
で巻きとった。得られた二層の積層体は充分な接着強度
を有しており、しかも優れた風合、破れにくさ、通気性
も有しており、花の包装資材として好適のものであっ
た。Example 3 Using a paper made of 100% pulp and having a basis weight of 18 g / m 2 ,
In the same manner as in Example 1, 5 g / m 2 of an ethylene vinyl acetate copolymer resin DH685 manufactured by Nogawa Chemical Co., which was melted at 170 ° C., was applied by a melt blown method, and a polyester spun bond having a basis weight of 16 g / m 2 was continuously applied to the applied surface. The two were rolled up and rolled, and both were adhered by applying a slight pressure between the rotating rolls and wound at a speed of 80 m / min. The obtained two-layer laminate had sufficient adhesive strength, and also had excellent feeling, resistance to tearing, and air permeability, and was suitable as a flower packaging material.

【００１９】[0019]

【発明の効果】本発明によれば、従来技術の欠点を改善
し、破れにくく、しかも通気性があり、風合の良い紙と
スパンボンドとの積層体を安価に製造することのできる
製造方法を提供することができる。特に、スパンボンド
を中心層とし、その両面に紙をホットメルト樹脂によっ
て接着した三層の積層体は障子紙として極めて好適であ
る。According to the present invention, there is provided a method for improving the drawbacks of the prior art, making it possible to produce a laminated body of paper and spunbond which is resistant to tearing, has good air permeability, and has a good feeling at low cost. Can be provided. In particular, a three-layer laminate in which a spun bond is used as a central layer and paper is adhered to both surfaces thereof with a hot melt resin is extremely suitable as shoji paper.

フロントページの続き Ｆターム(参考） 4F100 AK01A AK01B AK07 AK68G BA02 BA03 BA06 BA10A BA10B BA13 CB03 DG02 DG10A DG10B DG15A DG15B EC031 EC032 EH461 EH462 EJ191 EJ192 EJ941 EJ942 GB08 GB15 GB56 JD02 JK03 JL00 4F211 AA03 AA24 AA29 AC03 AD08 AD09 AD16 AD17 AG01 AG03 AG20 AH03 AH48 AH81 TA04 TC05 TJ13 TN43 TN48 TN49 TN60 TQ03 Continued on the front page F-term (reference) 4F100 AK01A AK01B AK07 AK68G BA02 BA03 BA06 BA10A BA10B BA13 CB03 DG02 DG10A DG10B DG15A DG15B EC031 EC032 EH461 EH462 EJ191 EJ192 EJ941 EJ942 GB08 A03A03A AG03 AG20 AH03 AH48 AH81 TA04 TC05 TJ13 TN43 TN48 TN49 TN60 TQ03

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 合成樹脂製スパンボンドまたは紙の少な
くとも片面にメルトブローン法によりホットメルト樹脂
を吹きつけ、紙または合成樹脂製スパンボンドを積層
し、貼り合わせることを特徴とするスパンボンドと紙と
の積層体の製造方法。A hot melt resin is sprayed on at least one surface of a synthetic resin spun bond or paper by a melt blown method, and the paper or synthetic resin spun bond is laminated and bonded. A method for manufacturing a laminate.
JP11180494A 1999-05-25 1999-05-25 Production of laminate of spun bonded material and paper Pending JP2000334869A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11180494A JP2000334869A (en) 1999-05-25 1999-05-25 Production of laminate of spun bonded material and paper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11180494A JP2000334869A (en) 1999-05-25 1999-05-25 Production of laminate of spun bonded material and paper

Publications (1)

Publication Number Publication Date
JP2000334869A true JP2000334869A (en) 2000-12-05

Family

ID=16084231

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11180494A Pending JP2000334869A (en) 1999-05-25 1999-05-25 Production of laminate of spun bonded material and paper

Country Status (1)

Country Link
JP (1) JP2000334869A (en)

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