JPH0566193B2 - - Google Patents
Info
- Publication number
- JPH0566193B2 JPH0566193B2 JP19741886A JP19741886A JPH0566193B2 JP H0566193 B2 JPH0566193 B2 JP H0566193B2 JP 19741886 A JP19741886 A JP 19741886A JP 19741886 A JP19741886 A JP 19741886A JP H0566193 B2 JPH0566193 B2 JP H0566193B2
- Authority
- JP
- Japan
- Prior art keywords
- coating
- layer
- web
- bottom layer
- water
- 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.)
- Expired - Fee Related
Links
- 238000000576 coating method Methods 0.000 claims description 80
- 239000011248 coating agent Substances 0.000 claims description 61
- 239000007788 liquid Substances 0.000 claims description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 239000008199 coating composition Substances 0.000 claims description 7
- 239000010410 layer Substances 0.000 description 78
- 239000011324 bead Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000011229 interlayer Substances 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 108010010803 Gelatin Proteins 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 239000003945 anionic surfactant Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 229920000159 gelatin Polymers 0.000 description 2
- 239000008273 gelatin Substances 0.000 description 2
- 235000019322 gelatine Nutrition 0.000 description 2
- 235000011852 gelatine desserts Nutrition 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005499 meniscus Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 229920001747 Cellulose diacetate Polymers 0.000 description 1
- 229920002284 Cellulose triacetate Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- ILJSQTXMGCGYMG-UHFFFAOYSA-N triacetic acid Chemical compound CC(=O)CC(=O)CC(O)=O ILJSQTXMGCGYMG-UHFFFAOYSA-N 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は写真用フイルム、印画紙等の写真感光
材料、写真製版材料、感圧記録紙，感熱記録紙等
記録材料の製造において、連続走行する長尺可撓
性支持体（以下ウエブと言う）に液状塗布組成物
を塗布する方法に関し、更に詳しくは二層以上の
塗布液膜を重畳した状態にして、連続走行してい
るウエブに施す多層同時塗布方法に関するもので
ある。Detailed Description of the Invention [Industrial Field of Application] The present invention is applicable to continuous running in the production of recording materials such as photographic film and photographic paper, photolithographic materials, pressure-sensitive recording paper, and heat-sensitive recording paper. Regarding a method of applying a liquid coating composition to a long flexible support (hereinafter referred to as a web), more specifically, a method of applying a liquid coating composition to a continuously running web with two or more coating liquid films superimposed on each other. The present invention relates to a multilayer simultaneous coating method.
従来、多層同時塗布方法のスライドホツパー塗
布装置等における高速塗布方法として、特公昭56
−20534号公報に開示された次のような塗布方法
がある。
Conventionally, as a high-speed coating method using slide hopper coating equipment for multi-layer simultaneous coating method,
There is the following coating method disclosed in Japanese Patent No.-20534.
即ち、この塗布方法は高速塗布性向上という目
的を達成するために、最下層に１〜8cpsの低粘度
液を用い湿潤被覆度がウエブ面１m2当り２〜12cm3
を塗布し、且つメニスカスで生ずる渦動が、最下
層と直ぐ上の層との混合だけで、更にその上の層
には影響しない様にして、塗布速度を増加させる
方法である。 That is, in order to achieve the purpose of improving high-speed coating, this coating method uses a low viscosity liquid of 1 to 8 cps as the bottom layer and has a wet coverage of 2 to 12 cm 3 per 1 m 2 of the web surface.
In this method, the coating speed is increased by applying the vortices generated by the meniscus so that the vortex generated by the meniscus only mixes the bottom layer and the layer directly above it, and does not affect the layer above it.
又特開昭54−1350号公報にはウエブに対する次
の層として100秒-1のずり速度で20ないし200cps
の粘度及び100000秒-1のずり速度で10cps以下の
粘度を有する疑似塑性液体の希薄性キヤリア層を
適用する方法が提案されている。即ち、この塗布
方法は前述した（特公昭56−20534号公報）如き
ビード部の不安定性を改良するために最下層に低
剪断速度下では高粘度を有し、且つ高剪断速度下
では低粘度を有する疑似塑性液体を使用するよう
にしたものであつた。 In addition, Japanese Patent Application Laid-Open No. 1350/1983 discloses that the next layer to the web is 20 to 200 cps at a shear rate of 100 sec -1 .
A method is proposed to apply a dilute carrier layer of a pseudoplastic liquid with a viscosity of less than 10 cps at a viscosity of 100000 s and a shear rate of 100000 s . That is, in order to improve the instability of the bead portion as described above (Japanese Patent Publication No. 56-20534), this coating method uses a layer that has a high viscosity under low shear rates and a low viscosity under high shear rates in the bottom layer. It was designed to use a pseudoplastic liquid having .
上記のような塗布方法によるときは、最下層を
形成する塗布液は非ニユートン性流動を示す性質
をもつている。又この場合塗布液としては特殊な
組成物を選び調液することを必要としていた。
When using the above coating method, the coating liquid forming the bottom layer has a property of exhibiting non-Newtonian flow. Further, in this case, it was necessary to select and prepare a special composition for the coating liquid.
本発明は従来塗布方法の有する上記欠点を除去
し、最下層とすぐその上の層とのあいだで層間混
合が生ずることなく、又、最下層に特殊で且つ、
高価な組成物を添加することなく、乾燥時間の増
加を最小限に抑制しながら高速安定塗布を可能な
らしめる新規な多層同時塗布方法を提供すること
を目的とする。 The present invention eliminates the above-mentioned drawbacks of conventional coating methods, eliminates interlayer mixing between the bottom layer and the layer immediately above it, and also provides special coating for the bottom layer.
The object of the present invention is to provide a novel multilayer simultaneous coating method that enables high-speed and stable coating while minimizing the increase in drying time without adding expensive compositions.
本発明者は低粘度液を最下層に用いて高速塗布
を実施する方法について鋭意実験検討を行つた結
果、最下層にニユートン流動である水を用い且つ
その湿潤塗布量がウエブ面１m2当り２cm3以下とい
う超薄層にすると驚くべきことに高速塗布適性が
失われないばかりか、ビードにおける渦動による
最下層とすぐ上の層との間層間混合が生じないこ
とを見い出した。
The inventor of the present invention conducted intensive experimental studies on a method of high-speed coating using a low viscosity liquid as the bottom layer, and found that the bottom layer was water with Newtonian flow and the wet coating amount was 2 cm per 1 m 2 of the web surface. Surprisingly, it has been found that when the layer is made as ultra-thin as 3 or less, the suitability for high-speed coating is not lost, and interlayer mixing between the bottom layer and the layer immediately above due to swirling in the bead does not occur.
更に、驚くべきことには、当業者にはよく知ら
れているところのスライドホツパー塗布装置にお
いて高速塗布を行つた場合発生する数mmピツチで
ウエブ走行方向に通つた非常に規則的な塗布故障
（特開昭60−255172号参照）に対しても、本発明
の方法では画期的な効果があることを見出した。 Moreover, it is surprising that the very regular coating failures occurring in the direction of web travel, at intervals of a few millimeters, occur during high-speed coating in slide hopper coating equipment, which is well known to those skilled in the art. (Refer to Japanese Patent Application Laid-Open No. 60-255172), it has been found that the method of the present invention has an epoch-making effect.
即ち本発明は、二層以上の塗布液膜を、重畳し
た状態にして、連続走行しているウエブに施す多
層同時塗布方法において、前記ウエブに隣接する
最下層塗布液膜が水で形成され、その湿潤塗布量
がウエブ面１m2当り２cm3以下であり、前記最下層
の上に隣接する層の塗布層が最下層よりも厚く、
且つ高い粘度の水溶性塗布液組成物から形成され
ることを特徴とする多層同時塗布方法である。 That is, the present invention provides a multilayer simultaneous coating method in which two or more coating liquid films are superimposed and applied to a continuously running web, in which the lowest layer coating liquid film adjacent to the web is formed of water, The wet coating amount is 2 cm 3 or less per 1 m 2 of the web surface, and the coating layer of the layer adjacent to the bottom layer is thicker than the bottom layer,
In addition, this is a multilayer simultaneous coating method characterized in that the coating composition is formed from a water-soluble coating composition with high viscosity.
本発明で使用する塗布液は、主として水溶性塗
布液組成物であり、例えば写真感光材料製造にお
いては少量の有機溶媒を含む感光乳剤層、下塗
層，保護層，バツク層，アンチハレーシヨン層等
の塗布液があげられる。 The coating liquid used in the present invention is mainly a water-soluble coating composition, and for example, in the production of photographic materials, it is used to form a photosensitive emulsion layer, an undercoat layer, a protective layer, a back layer, and an antihalation layer containing a small amount of an organic solvent. Coating liquids such as
又本発明に使用される支持体としては、紙，プ
ラスチツクフイルム，レジンコーテイツド紙，合
成紙，金属等が包含される。 Supports used in the present invention include paper, plastic film, resin coated paper, synthetic paper, metal, and the like.
プラスチツクフイルムの材質はたとえば、ポリ
エチレン，ポリプロピレン等のポリオレフイン、
ポリ酢酸ビニル，ポリ塩化ビニル，ポリスチレン
等のビニル重合体、６，６−ナイロン，６−ナイ
ロン等のポリアミド、ポリエチレンテレフタレー
ト，ポリエチレン−２，６−ナフタレート等のポ
リエステル、ポリカーボネイト、セルローストリ
アセテート，セルロースダイアセテート等のセル
ロースアセテート等が使用される。また、レジン
コーテイツド紙に用いる樹脂としては、ポリオレ
フインが代表的であるが、必らずしもこれに限定
されない。又金属ウエブとしては例えばアルミニ
ウム帯状物があげられる。 Examples of plastic film materials include polyolefins such as polyethylene and polypropylene;
Vinyl polymers such as polyvinyl acetate, polyvinyl chloride, and polystyrene, polyamides such as 6,6-nylon and 6-nylon, polyesters such as polyethylene terephthalate and polyethylene-2,6-naphthalate, polycarbonate, cellulose triacetate, and cellulose diacetate. Cellulose acetate and the like are used. Furthermore, although polyolefin is a typical resin used for resin-coated paper, it is not necessarily limited thereto. The metal web may be, for example, an aluminum strip.
本発明で使用される最下層の水は、一般的には
蒸留水が用いられる。その湿潤塗布量はウエブ面
１m2当り２cm3以下が望ましい。 Distilled water is generally used as the water in the bottom layer in the present invention. The wet coating amount is preferably 2 cm 3 or less per 1 m 2 of web surface.
最下層の水の層の上に隣接する層の塗布量は最
下層よりも５倍以上厚く、且つ15倍以上高い粘度
のものが望ましい。 The coating amount of the layer adjacent to the bottom water layer is preferably 5 times or more thicker and 15 times or more higher in viscosity than the bottom layer.
本発明の実施態様を図によつて説明する。 Embodiments of the present invention will be described with reference to the drawings.
第１図は、本発明の塗布方法の１実施態様であ
る３層同時塗布用のスライドホツパー型塗布装置
の側面断面図である。 FIG. 1 is a side sectional view of a slide hopper type coating device for simultaneous three-layer coating, which is an embodiment of the coating method of the present invention.
図において１はバツクアツプロール、２はウエ
ブ、３はビード部、４，７，１０，１３はスライ
ド面、５，８，１１はスロツト、６，９，１２は
マニホールド、１４は最下層を形成する水の膜、
１５は第１層を形成する塗布液膜、１６は第２層
を形成する塗布液膜である。ウエブ２は図示しな
い搬送手段により、バツクアツプロール１の周上
を矢印方向に連続して移送される。 In the figure, 1 is the back-up roll, 2 is the web, 3 is the bead part, 4, 7, 10, 13 are the slide surfaces, 5, 8, 11 are the slots, 6, 9, 12 are the manifolds, and 14 is the bottom layer. a film of water,
15 is a coating liquid film forming the first layer, and 16 is a coating liquid film forming the second layer. The web 2 is continuously transported along the circumference of the backup roll 1 in the direction of the arrow by a transport means (not shown).
一方、最下層を形成する水１４は送液ポンプに
よつて送液されマニホールド６によつてホツパー
の幅一杯にひろがり、ついでスロツト５を通過し
てスライド面４の上に出てここからスライド面４
上を重力により自然流下しビード３を形成し支持
体２の上に塗布される。この際水の湿潤塗布量は
ウエブ面１m2当たり２cm3以下に調整される。同様
に最下層上に製品としての第１及び第２の層を形
成する他の塗布液１５及び１６も、夫々マニホー
ルド９，１２及びスロツト８，１１を通過してス
ライド面７及び１０の上に流出し、ここからスラ
イド面７及び１０上を重力により自然流下し、
夫々塗布膜１５，１６を形成し、且つ最下層を形
成する水の膜１４と共に重量した状態でビード３
を形成し支持体２の上に塗布される。 On the other hand, water 14 forming the bottom layer is sent by a liquid pump and spread across the entire width of the hopper by the manifold 6, then passes through the slot 5 and emerges above the slide surface 4, from where it flows into the slide surface. 4
It flows down by gravity on the top, forms a bead 3, and is applied onto the support 2. At this time, the wet application amount of water is adjusted to 2 cm 3 or less per 1 m 2 of the web surface. Similarly, the other coating liquids 15 and 16 that form the first and second layers as products on the bottom layer also pass through the manifolds 9, 12 and the slots 8, 11, respectively, onto the slide surfaces 7 and 10. It flows down from here on the slide surfaces 7 and 10 by gravity,
The beads 3 are coated with coating films 15 and 16, respectively, and are weighed together with the water film 14 forming the bottom layer.
is formed and coated on the support 2.
又第２図は本発明の塗布方法の他の１実施態様
である３層同時塗布用エクストルージヨン型塗布
装置の側面断面図である。 FIG. 2 is a side sectional view of an extrusion type coating device for simultaneous three-layer coating, which is another embodiment of the coating method of the present invention.
図において２１はバツクアツプロール、２２は
ウエブ、２４，２５，２６はスロツト、２７，２
８，２９はマニホールド、３０は最下層を形成す
る水の膜、３１は製品の第１層を形成する塗布液
膜、３２は第２層を形成する塗布液膜である。ウ
エブ２２は図示しない搬送手段によりバツクアツ
プロール２１の周上を矢印の方向に連続して移送
される。 In the figure, 21 is a back-up roll, 22 is a web, 24, 25, 26 are slots, 27, 2
8 and 29 are manifolds, 30 is a water film forming the bottom layer, 31 is a coating liquid film forming the first layer of the product, and 32 is a coating liquid film forming the second layer. The web 22 is continuously transported along the circumference of the backup roll 21 in the direction of the arrow by a transport means (not shown).
一方最下層を形成する水の膜３０は送液ポンプ
によつて送液されマニホールド２７によつてホツ
パーの幅方向に拡がりスロツト２４を通過して押
し出され、支持体２２の上に塗布される。この際
水の湿潤塗布量はウエブ面１m2当たり２cm3以下に
調整される。同様に第１層及び第２層を形成する
他の塗布液膜３１，３２も夫々マニホールド２
８，２９及びスロツト２５，２６を通過して押し
出され、最下層を形成する水の膜３０と共に支持
体２２の上に塗布される。 On the other hand, the water film 30 forming the bottom layer is fed by a liquid pump, spread in the width direction of the hopper by the manifold 27, pushed out through the slot 24, and applied onto the support 22. At this time, the wet application amount of water is adjusted to 2 cm 3 or less per 1 m 2 of the web surface. Similarly, other coating liquid films 31 and 32 forming the first layer and the second layer are also applied to the manifold 2.
8, 29 and slots 25, 26 and is applied onto the support 22 with a film of water 30 forming the bottom layer.
本発明は前記ウエブに隣接する最下層塗布膜を
水で形成させその湿潤塗布量がウエブ面１m2当り
２cm3以下にすることにより、支持体と塗布液の濡
れがよくなりビード部の渦動による塗布液の混合
を心配することなく又最下層に起因する塗布スジ
等の発生もなく均質な塗布品質を得ることが出
来、塗布速度を著しく増大することが出来るので
ある。
In the present invention, the lowermost coating film adjacent to the web is formed with water and the wet coating amount is 2 cm 3 or less per 1 m 2 of the web surface, thereby improving the wetting of the coating solution with the support, which is caused by swirling of the bead portion. It is possible to obtain uniform coating quality without worrying about mixing of coating liquids and without the occurrence of coating streaks caused by the bottom layer, and the coating speed can be significantly increased.
本発明による効果を一層明確にするために、実
施例をあげる。
Examples will be given to further clarify the effects of the present invention.
本発明による塗布方法と従来の塗布方法との比
較実験を、第１図に示すスライドホツパー型塗布
装置を使用して、下記の条件で行つた。尚使用し
たウエブは18cm巾のトリアセテートセルロース
（TAC）ベースである。 A comparative experiment between the coating method according to the present invention and a conventional coating method was conducted using a slide hopper type coating apparatus shown in FIG. 1 under the following conditions. The web used was an 18 cm wide triacetate cellulose (TAC) based web.
比較例 １
第１層：40℃で粘度60cpsを示すアニオン系界
面活性剤を含むアンチハレーシヨン液を流量
75c.c.／cm・min
第２層：40℃で粘度20cpsを示すアニオン系界面
活性剤を含むゼラチン液を流量75c.c.／cm・
min
の条件で多層同時塗布を行つた。Comparative example 1 1st layer: Antihalation liquid containing anionic surfactant with a viscosity of 60 cps at 40°C was flowed.
75c.c./cm・min 2nd layer: Gelatin solution containing an anionic surfactant with a viscosity of 20cps at 40°C at a flow rate of 75c.c./cm・min.
Simultaneous multilayer coating was performed under conditions of min.
上記のように塗布したところ、塗布速度は
105m／minになると均質な塗布面状が得られな
くなつた。 When applied as above, the application speed was
At 105 m/min, it became impossible to obtain a homogeneous coated surface.
実施例 １
最下層：40℃で粘度0.65cpsを示す水を流量２
c.c.／cm・min
第１層：比較例−１の層構成の第１層と同じ
第２層：比較例−１の層構成の第２層と同じ
上記のような条件で多層同時塗布したところ塗
布速度が341m／minまで均質な塗布面状が得ら
れた。Example 1 Bottom layer: Water with a viscosity of 0.65 cps at 40°C at a flow rate of 2
cc/cm・min 1st layer: Same as the 1st layer with the layer structure of Comparative Example-1 2nd layer: Same as the 2nd layer with the layer structure of Comparative Example-1 Simultaneous multi-layer coating under the above conditions A uniform coated surface was obtained up to a coating speed of 341 m/min.
比較例 ２
第１層：40℃で粘度60cpsを示すアンチハレーシ
ヨン液を流量57.6c.c.／cm・min
第２層：40℃で粘度8cpsを示すゼラチン液を流量
38.4c.c.／cm・min
上記のような条件で多層同時塗布したところ、
塗布速度が90m／minで数mmピツチでウエブ走行
方向に通つた非常に規則的な塗布スジが発生し均
質な塗布面状が得られなくなつた。Comparative Example 2 1st layer: Antihalation liquid with viscosity of 60 cps at 40°C at flow rate of 57.6cc/cm・min 2nd layer: Gelatin liquid with viscosity of 8 cps at 40°C at flow rate
38.4cc/cm・min When multiple layers were applied simultaneously under the above conditions,
At a coating speed of 90 m/min, very regular coating streaks running in the web running direction occurred at several mm intervals, making it impossible to obtain a homogeneous coated surface.
実施例 ２
最下層：40℃で粘度0.65cpsを示す水を流量２
c.c.／cm・min
第１層：比較例−２の層構成の第１層と同じ
第２層：比較例−２の層構成の第２層と同じ
上記のように塗布したところ、塗布速度が
300m／minまで前述のスジ故障は発生せず、均
質な塗布面状が得られた。Example 2 Bottom layer: Water with a viscosity of 0.65 cps at 40°C at a flow rate of 2
cc/cm・min 1st layer: Same as the 1st layer with the layer structure of Comparative Example-2 2nd layer: Same as the 2nd layer with the layer structure of Comparative Example-2 When coated as above, the coating speed was
The above-mentioned streak failure did not occur up to 300 m/min, and a uniform coated surface was obtained.
本発明は最下層塗布膜を水で形成させその湿潤
塗布量がウエブ面１m2当たり２cm3以下にし、前記
最下層の上に隣接する層の塗布量が最下層よりも
厚く、且つ高い粘度の水溶性塗布液組成物で形成
することにより、ウエブと最下層膜との濡れがよ
くビードも安定し、その上の層との層間混合を生
じることなく、又最下層に起因する塗布スジ等の
発生もなく塗布速度を著しく上昇させることが出
来た。
In the present invention, the bottom layer coating film is formed with water so that the wet coating amount is 2 cm 3 or less per 1 m 2 of the web surface, and the coating amount of the layer adjacent to the bottom layer is thicker than the bottom layer and has a high viscosity. By using a water-soluble coating composition, the wetting of the web and the bottom layer film is good, the bead is stable, there is no interlayer mixing with the layer above it, and there are no coating streaks caused by the bottom layer. It was possible to significantly increase the coating speed without any occurrence.
第１図は本発明塗布方法の一実施例である。三
層同時塗布用のスライドホツパー型塗布装置の側
面断面図である。第２図は本発明の塗布方法によ
る三層同時塗布用エクストルージヨン型塗布装置
の側面断面図である。
１，２１……バツクアツプロール、２，２２…
…ウエブ、３，３０……ビード部、４，７，１０
……スライド面、５，８，１１，２４，２５，２
６，……スロツト、６，９，１２，２７，２８，
２９，……マニホールド、１４，３０……最下層
を形成する水の膜、１５，３１……第１層を形成
する塗布液膜、１６，３２……第２層を形成する
塗布液膜。
FIG. 1 shows an embodiment of the coating method of the present invention. FIG. 2 is a side sectional view of a slide hopper type coating device for simultaneous three-layer coating. FIG. 2 is a side sectional view of an extrusion type coating device for simultaneous three-layer coating according to the coating method of the present invention. 1,21... Backup Prowl, 2,22...
...Web, 3,30...Bead part, 4,7,10
...Slide surface, 5, 8, 11, 24, 25, 2
6, ... slot, 6, 9, 12, 27, 28,
29,... Manifold, 14, 30... Water film forming the bottom layer, 15, 31... Coating liquid film forming the first layer, 16, 32... Coating liquid film forming the second layer.
Claims (1)
て、連続走行しているウエブに施す多層同時塗布
方法において、前記ウエブに隣接する最下層塗布
液膜が水で形成され、その湿潤塗布量がウエブ面
１m2当り２cm3以下であり、前記最下層の上に隣接
する層の塗布量が最下層よりも厚く、且つ高い粘
度の水溶性塗布液組成物から形成されることを特
徴とする多層同時塗布方法。1. In a multilayer simultaneous coating method in which two or more coating liquid films are superimposed and applied to a continuously running web, the lowest layer coating liquid film adjacent to the web is formed of water, and its wet coating amount is is 2 cm 3 or less per 1 m 2 of the web surface, and the coating amount of the layer adjacent to the bottom layer is thicker than the bottom layer, and is formed from a water-soluble coating composition with a higher viscosity. Multilayer simultaneous coating method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19741886A JPS6354975A (en) | 1986-08-25 | 1986-08-25 | Simultaneous multi-layer coating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19741886A JPS6354975A (en) | 1986-08-25 | 1986-08-25 | Simultaneous multi-layer coating method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6354975A JPS6354975A (en) | 1988-03-09 |
| JPH0566193B2 true JPH0566193B2 (en) | 1993-09-21 |
Family
ID=16374186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19741886A Granted JPS6354975A (en) | 1986-08-25 | 1986-08-25 | Simultaneous multi-layer coating method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6354975A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2646251B2 (en) | 1987-10-20 | 1997-08-27 | 富士写真フイルム株式会社 | Multilayer simultaneous coating method and apparatus |
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| US8012909B2 (en) | 2007-03-27 | 2011-09-06 | Fujifilm Corporation | Heat-sensitive transfer image-forming method |
| US20080254382A1 (en) | 2007-03-27 | 2008-10-16 | Fujifilm Corporation | Heat-sensitive transfer sheet and image-forming method |
| JP2008238736A (en) | 2007-03-28 | 2008-10-09 | Fujifilm Corp | Thermal transfer image accepting sheet |
| JP2008238737A (en) | 2007-03-28 | 2008-10-09 | Fujifilm Corp | Thermal transfer image receiving sheet and its manufacturing method |
| JP2008238740A (en) | 2007-03-28 | 2008-10-09 | Fujifilm Corp | Thermal transfer recording material and its manufacturing method |
| EP1974948A3 (en) | 2007-03-29 | 2012-02-08 | FUJIFILM Corporation | Image-forming method using heat-sensitive transfer system |
| US8129309B2 (en) | 2007-03-29 | 2012-03-06 | Fujifilm Corporation | Heat-sensitive transfer sheet for use in heat-sensitive transfer system and image-forming method using heat-sensitive transfer system |
| JP4878327B2 (en) | 2007-03-30 | 2012-02-15 | 富士フイルム株式会社 | Thermal transfer image-receiving sheet and method for producing the same |
| JP2008246929A (en) | 2007-03-30 | 2008-10-16 | Fujifilm Corp | Thermosensitive transfer image receiving sheet and plannar condition modifying agent |
| JP2008273641A (en) | 2007-04-25 | 2008-11-13 | Fujifilm Corp | Cardboard cylinder for heat-sensitive transfer image-receiving sheet, roll shape machined article and image forming method of the sheet |
| JP4921287B2 (en) | 2007-08-29 | 2012-04-25 | 富士フイルム株式会社 | Thermal transfer image-receiving sheet and method for producing the same |
| EP2042334A3 (en) | 2007-09-27 | 2009-10-28 | Fujifilm Corporation | Method of producing heat-sensitive transfer image-receiving sheet |
| DE602008002538D1 (en) | 2007-12-28 | 2010-10-28 | Fujifilm Corp | Method for imaging by means of heat-sensitive transmission system |
| JP2011062892A (en) | 2009-09-16 | 2011-03-31 | Fujifilm Corp | Thermal transfer image-receiving sheet |
| JP2011148285A (en) | 2009-12-25 | 2011-08-04 | Fujifilm Corp | Method of forming image using heat-sensitive transfer image-receiving sheet having lenticular lens |
-
1986
- 1986-08-25 JP JP19741886A patent/JPS6354975A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6354975A (en) | 1988-03-09 |
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