JPH01100542A - Photographic paper - Google Patents
Photographic paperInfo
- Publication number
- JPH01100542A JPH01100542A JP25809687A JP25809687A JPH01100542A JP H01100542 A JPH01100542 A JP H01100542A JP 25809687 A JP25809687 A JP 25809687A JP 25809687 A JP25809687 A JP 25809687A JP H01100542 A JPH01100542 A JP H01100542A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- photographic paper
- polyethylene
- support
- base
- 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
Links
- 239000004698 Polyethylene Substances 0.000 claims abstract description 53
- 229920000573 polyethylene Polymers 0.000 claims abstract description 52
- -1 polyethylene Polymers 0.000 claims abstract description 45
- 239000000839 emulsion Substances 0.000 claims abstract description 17
- 238000001125 extrusion Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 5
- 238000010030 laminating Methods 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 40
- 239000003795 chemical substances by application Substances 0.000 description 9
- 238000001816 cooling Methods 0.000 description 6
- 238000005507 spraying Methods 0.000 description 6
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 238000007664 blowing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000011261 inert gas Substances 0.000 description 4
- 238000003475 lamination Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000003851 corona treatment Methods 0.000 description 2
- 208000028659 discharge Diseases 0.000 description 2
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000004700 high-density polyethylene Substances 0.000 description 2
- 229920001684 low density polyethylene Polymers 0.000 description 2
- 239000004702 low-density polyethylene Substances 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 238000012369 In process control Methods 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 238000010965 in-process control Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000013054 paper strength agent Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
- G03C1/775—Photosensitive materials characterised by the base or auxiliary layers the base being of paper
- G03C1/79—Macromolecular coatings or impregnations therefor, e.g. varnishes
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Physics & Mathematics (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は写真用印画紙に関する。更に詳しくは、本発明
は写真用乳剤を塗設するポリエチレン層と支持体の間の
剥離強度が低い写真用印画紙に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to photographic paper. More particularly, the present invention relates to a photographic paper having a low peel strength between a polyethylene layer coated with a photographic emulsion and a support.
（従来の技術）
一般に写真用印画紙（以下単に「印画紙」と呼ぶ）は支
持体上にポリエチレン層を積層し、更に乳剤層を塗設し
た構造を有しており、通常、支持体とポリエチレン層と
の剥離を防止するために、支持体にコロナ放電処理、グ
ロー放電処理、火炎処理等の表面処理をするか、支持体
表面にアンカー剤を塗布したり、溶融ポリエチレンにオ
ゾンを吹き付けて支持体とポリエチレン層と、の密着を
高める事が行われている。(Prior art) Photographic paper (hereinafter simply referred to as "photographic paper") generally has a structure in which a polyethylene layer is laminated on a support, and an emulsion layer is further coated. To prevent separation from the polyethylene layer, the support may be surface treated by corona discharge treatment, glow discharge treatment, flame treatment, etc., or an anchoring agent may be applied to the surface of the support, or ozone may be sprayed onto the molten polyethylene. Efforts have been made to increase the adhesion between the support and the polyethylene layer.
一方、印画紙の用途が拡大されつつある現在、焼き付は
現像処理した印画紙を、ポストカード、ノート、名刺、
テレフォンカード、ＩＤカード等（以下テレフォンカー
ド等とする）に、シールやワッペンの様に貼って用いる
ことのできる印画紙の出現が待たれていた。On the other hand, as the uses of photographic paper are expanding, printing can be used to print developed photographic paper on postcards, notebooks, business cards, etc.
The appearance of photographic paper that can be used like a sticker or patch on telephone cards, ID cards, etc. (hereinafter referred to as "telephone cards, etc.") has been awaited.
しかしながら、一般の印画紙には破損および折り曲げ防
止のために、支持体として厚手の紙が用いられているた
め、焼付け、および現像処理した印画紙をテレフォンカ
ード等に貼付けると厚ぼったくなり、特に、テレフォン
カードでは、テレフォンカード機本体のカード挿入口に
テレフォンカードが入らないという使用上の欠点が生ず
る。However, because ordinary photographic paper uses thick paper as a support to prevent damage and bending, when printed and developed photographic paper is attached to a telephone card, etc., it becomes thick and thick, especially when A disadvantage of using a telephone card is that the telephone card cannot be inserted into the card insertion slot of the telephone card machine body.
このような欠点を解決するために支持体である紙を薄く
しようとしても、紙を薄くするには限度がある上、薄い
紙はラミネートの際切断しやすいという欠点もある。又
、紙を薄くすると印画紙の腰が弱くなり、高速現像処理
機やミニラボ現像処理機等で処理する場合に、ジャミン
グ等によるしわが発生するという欠点が生ずる。Even if an attempt is made to make the paper that is the support thinner in order to solve these drawbacks, there is a limit to how thin the paper can be made, and there is also the drawback that thin paper is easy to cut during lamination. Further, if the paper is made thinner, the photographic paper becomes stiffer, which causes the disadvantage that wrinkles may occur due to jamming or the like when processing in a high-speed processing machine, a minilab processing machine, or the like.
そこで特公昭６１−３４６５９には、印西紙が支持体上
にポリエチレン層と乳剤層とが積層された構造を有して
いる点に着眼し、支持体とポリエチレン層との間に剥離
を容易にする物質（以下「剥離剤ｊと呼ぶ）を支持体表
面に塗布した後ポリエチレン層と積層することによって
、支持体とポリエチレン層が現像処理迄は剥がれること
のない剥離強度を持たせた上で、現像処理後には容易に
剥離することのできる印画紙を得ることが開示されてい
る。Therefore, in Japanese Patent Publication No. 61-34659, they focused on the fact that Inzai paper has a structure in which a polyethylene layer and an emulsion layer are laminated on a support, and created a structure that facilitates peeling between the support and the polyethylene layer. By applying a substance (hereinafter referred to as "release agent j") to the surface of the support and then laminating it with the polyethylene layer, the support and polyethylene layer have a peel strength that will not peel off until development processing. It is disclosed to obtain a photographic paper which can be easily peeled off after processing.
（発明が解決しようとする問題点）
確かにこの方法によれば、印画紙を貼った後のテレフォ
ンカード等の厚みを薄くすることができるが、剥離剤を
支持体に塗る際に剥離剤の濃度を厳密に管理しないと目
標の剥離強度が得られないため製造工程が煩雑になると
いう欠点に加えて、剥離剤の塗布液が不安定であるため
凝集物が生じ、これが支持体に転写して乳剤側のポリエ
チレン層の面を粗すという欠点があった。(Problem to be solved by the invention) It is true that according to this method, it is possible to reduce the thickness of telephone cards, etc. after pasting photographic paper, but when applying the release agent to the support, In addition to the drawback that the target peel strength cannot be obtained unless the concentration is strictly controlled, which complicates the manufacturing process, the release agent coating solution is unstable, resulting in aggregates that are transferred to the support. This had the disadvantage that the surface of the polyethylene layer on the emulsion side was roughened.
従って本発明の目的は、剥離剤を用いることなしに、現
像処理迄は支持体とポリエチレン層が剥がれず現像処理
後は支持体とポリエチレン層とを容易に剥がすことがで
きる印画紙であって、剥離した後の乳剤層を有するポリ
エチレン層を、シールやワッペンの様に貼り付けること
のできる印画紙を提供することにある。Therefore, an object of the present invention is to provide a photographic paper in which the support and the polyethylene layer do not peel off until the development process, and the support and the polyethylene layer can be easily peeled off after the development process, without using a release agent, It is an object of the present invention to provide a photographic paper to which a polyethylene layer having an emulsion layer after peeling can be attached like a sticker or a patch.
（問題点を解決するための手段）
本発明の上記の目的は、支持体上に直接ポリエチレン層
を積層し、更に写真乳剤層を塗設した写真用印画紙にお
いて、前記支持体とポリエチレン層との剥離強度が５乃
至３００ｇ重であることを特徴とする写真用印画紙によ
って達成された。(Means for Solving the Problems) The above object of the present invention is to provide a photographic paper in which a polyethylene layer is directly laminated on a support and a photographic emulsion layer is further coated. This was achieved by a photographic paper characterized by a peel strength of 5 to 300 g weight.
以下に本発明に係る写真用印画紙につき、更に詳しく説
明する。The photographic paper according to the present invention will be explained in more detail below.
本発明に用いる支持体としては、針葉樹、広葉樹から得
られる天然パルプあるいはポリエチレン、ポリプロピレ
ンを繊維状にした合成パルプ等を主原料とした上で、必
要に応じ、種々のサイズ剤、紙力剤、填料、定着剤等の
添加された原紙、及びコート紙や塩ビ、ポリエステル等
のプラスチックフィルムも使用できる。The support used in the present invention is mainly made of natural pulp obtained from softwood or hardwood, or synthetic pulp made from polyethylene or polypropylene fibers, and, if necessary, various sizing agents, paper strength agents, etc. Base paper to which fillers, fixing agents, etc. have been added, coated paper, and plastic films such as vinyl chloride and polyester can also be used.
本発明に係る写真用のポリエチレン層に用いるポリエチ
レンは高密度ポリエチレン、低密度ポリエチレン及びそ
の混合物である。これらの樹脂層の厚さは通常１５〜５
０μである。また、これらの樹脂層には、必要に応じて
顔料、蛍光増白剤、酸化防止剤が添加される。The polyethylene used in the photographic polyethylene layer according to the present invention is high density polyethylene, low density polyethylene and mixtures thereof. The thickness of these resin layers is usually 15 to 5
It is 0μ. Furthermore, pigments, optical brighteners, and antioxidants are added to these resin layers as necessary.
写真用印画紙の乳剤を塗布する側のポリエチレン層は、
表面加工の異なる冷却ロールやエンボスロールにより光
沢面、絹目面、マット面等の形状が付与されるが、いず
れの表面形状であっても、次に記載する製造方法を採用
することにより、支持体とポリエチレン層との間の剥離
強度を５〜３００ｇ重とすることができる。この場合の
剥離強度は、引張り試験機を用い、巾１５ｍ／ｍ、剥離
角度９０°Ｌとして測定する。The polyethylene layer on the side of photographic paper that is coated with emulsion is
Cooling rolls and embossing rolls with different surface treatments give a glossy surface, silky surface, matte surface, etc., but regardless of the surface shape, it can be supported by adopting the manufacturing method described below. The peel strength between the body and the polyethylene layer can be between 5 and 300 g weight. The peel strength in this case is measured using a tensile tester at a width of 15 m/m and a peel angle of 90°L.
支持体とポリエチレン層との剥離強度を十分にするため
に、通常、印画紙支持体に積層するポリエチレンの押出
温度は３１０℃以上である。しかしながら本発明におい
ては、積層するポリエチレンの押出温度を２８０〜３０
５℃、好ましくは２８５〜３００°Ｃとする。押出湯度
が２８０℃以下になると、ラミネートの際ポリエチレン
のドローダウン性が悪化し、膜切れを起こす。２８０〜
２８５℃では、ウェッブのテンション変動、ポリエチレ
ンの吐出量の変動により膜切れする場合があるのでこれ
らの変動を極力無くすように工程制御に注意する必要が
ある。膜切れを防ぐためにラミネートのスピードを下げ
ることは、生産性が著しく悪くなるので好ましくない。In order to ensure sufficient peel strength between the support and the polyethylene layer, the extrusion temperature of the polyethylene laminated onto the photographic paper support is usually 310° C. or higher. However, in the present invention, the extrusion temperature of the laminated polyethylene is set at 280 to 30
The temperature is 5°C, preferably 285-300°C. When the extrusion temperature is below 280°C, the drawdown properties of polyethylene deteriorate during lamination, causing film breakage. 280～
At 285° C., film breakage may occur due to fluctuations in web tension and polyethylene discharge amount, so care must be taken in process control to eliminate these fluctuations as much as possible. Reducing the laminating speed in order to prevent film breakage is undesirable because it significantly reduces productivity.
一方、押出温度が３０５℃を越えると支持体とポリエチ
レン層の間の剥離強度が大きくなり、ポリエチレン層を
剥がす際に乳剤を塗布したポリエチレン層が伸びたり、
切れたりするので本発明の目的を達成することができな
い。３００〜３０５℃の押出温度では、目標の剥離強度
を得ることができるものの、ラミネートや乳剤塗布後の
経時で剥離強度が上限を越える為、本製品の寿命が著し
く短かくなる。On the other hand, if the extrusion temperature exceeds 305°C, the peel strength between the support and the polyethylene layer increases, and when the polyethylene layer is peeled off, the polyethylene layer coated with the emulsion may stretch.
The object of the present invention cannot be achieved because the material may break. At an extrusion temperature of 300 to 305°C, the target peel strength can be obtained, but the peel strength exceeds the upper limit with time after lamination or emulsion coating, and the life of the product is significantly shortened.
本発明においては、ポリエチレン層をラミネートする直
前で支持体と押出された溶融ポリエチレンのラミネート
部に、Ｈｅ、Ｎｅ、Ａｒ、Ｎｚ等の不活性ガスか冷却エ
アーを吹き付けることによって、積層するポリエチレン
の温度を２８５〜３００°Ｃに制御しても良い。吹き付
ける温度が３０℃以下であれば不活性ガスの種類が異な
っても剥離強度を下げる効果に殆ど差が見られない。In the present invention, the temperature of the polyethylene to be laminated is controlled by blowing an inert gas such as He, Ne, Ar, or Nz or cooling air onto the support and the extruded molten polyethylene laminate immediately before laminating the polyethylene layer. may be controlled at 285 to 300°C. If the spraying temperature is 30° C. or lower, there is almost no difference in the effect of lowering peel strength even if the type of inert gas is different.
冷却エアーは剥離強度を下げる効果があるが、この場合
エアーの除湿をしないと冷却ロールが結露してラミネー
ト後の面状を著しく損なう。Cooling air has the effect of lowering the peel strength, but in this case, if the air is not dehumidified, dew condensation will occur on the cooling roll, significantly impairing the surface quality after lamination.
不活性ガス、冷却エアー等の吹付は量としては０、 ２
〜０． ６ （ｎ？／分・１ｍ中）が好ましい。The amount of spraying of inert gas, cooling air, etc. is 0, 2.
~0. 6 (n?/min/1m) is preferable.
吹付は量が０． ８ （ｒｒｆ／分・１ｍ中）を越える
とラミネートするポリエチレン層が乱される為、巾方向
でのポリエチレンの厚みが不均一となり巻きとったロー
ルに厚みムラによる筋が発生したり、印画紙の解像力が
不均一になる。また吹付は量が０、 ２ （ｒｒｒ／分
・１ｍ中）以下では吹付けの効果が殆ど見られない。又
、不活性ガス、冷却エアー等を吹付ける装置としては、
公知のガス吹付は装置の中から適宜選択し、若しくは適
宜設計することができる。The amount of spraying is 0. If the speed exceeds 8 (rrf/min/1 m), the polyethylene layer to be laminated will be disturbed, resulting in uneven thickness of the polyethylene in the width direction, which may cause streaks on the wound roll due to uneven thickness, and Resolution becomes uneven. Further, when the spraying amount is less than 0.2 (rrr/min/1 m), the spraying effect is hardly seen. In addition, as a device for blowing inert gas, cooling air, etc.
Known gas spraying devices can be appropriately selected from among the devices or designed as appropriate.
本発明の印画紙をシールやワッペンとして使う際、乳剤
層を保護する為に粘着性のある透明のフィルムで乳剤層
表面を保護しても良い。この保護層は本印画紙を貼る前
に設けても、貼った後に設けても良い。When the photographic paper of the present invention is used as a sticker or patch, the surface of the emulsion layer may be protected with an adhesive transparent film to protect the emulsion layer. This protective layer may be provided before or after the photographic paper is pasted.
上記の如くして作製した写真用印画紙は、支持体とポリ
エチレン層との間の剥離強度が５〜３００ｇ重であるの
で、現像処理の間は支持体とポリエチレン層との剥離を
生ずることなく現像処理をすることができる一方、シー
ルやワッペンとして使用するために剥離しようとすれば
、容易に、支持体から乳剤層を塗布したポリエチレン層
を剥離することができる。従って、剥離したポリエチレ
ン層をテレフォンカード等に貼りつけても殆ど厚みが増
大しないので実際の使用に差し支えることがない、特に
、剥離強度を１５〜２００ｇ重とした場合には、上記剥
離作業をより容易とする一方、現像処理に十分耐えるこ
とができるので好ましい。The photographic paper produced as described above has a peel strength between the support and the polyethylene layer of 5 to 300 g, so there is no peeling between the support and the polyethylene layer during the development process. While it can be subjected to development processing, if it is to be peeled off for use as a sticker or patch, the polyethylene layer coated with the emulsion layer can be easily peeled off from the support. Therefore, even if the peeled polyethylene layer is pasted on a telephone card or the like, the thickness will hardly increase, so there is no problem with actual use.Especially when the peel strength is 15 to 200 g, the above peeling operation is not necessary. This is preferable because it is easier to use and can withstand development processing sufficiently.
（発明の効果）
以上詳述した如く、本発明の写真用印画紙は積層するポ
リエチレン層の温度を制御して直接支持体にラミネート
し、剥離剤等を使用することなく、両者の間の剥離剤強
度を５〜３００ｇ重にするものであるので、製造工程が
簡略化されるのみならず、剥離されるポリエチレン層の
平滑性等の品質も良い上、厚みも十分薄いので、ワッペ
ンやシール等として使用するのに好適である。(Effects of the Invention) As detailed above, the photographic paper of the present invention can be laminated directly onto a support by controlling the temperature of the laminated polyethylene layer, and can be peeled off between the two without using a release agent or the like. Since the strength of the agent is 5 to 300 g, it not only simplifies the manufacturing process, but also has good quality such as smoothness of the polyethylene layer to be peeled off, and is thin enough to be used for patches, stickers, etc. suitable for use as a
実見■
以下に、本発明を実施例により更に詳述するが、本発明
はこれによって限定されるものではない。EXPERIMENTAL EXAMPLES The present invention will be explained in more detail below with reference to Examples, but the present invention is not limited thereto.
秤量１５０ｇ／ｎ（の原紙を毎分５０ｍで走行させ、裏
面に溶融押出機を用いて、高密度ポリエチレン（密度０
．９６０、ＭＩ＝１３°）を樹脂厚さが２８μｍとなる
ように溶融押出塗布した。A base paper with a weight of 150 g/n was run at a speed of 50 m/min, and high-density polyethylene (density 0
．． 960, MI=13°) was applied by melt extrusion so that the resin thickness was 28 μm.
次いで、原紙のおもて面に溶融押出機を用いて酸化チタ
ンを１０重景％含有した低密度ポリエチレン（密度０．
９２３、ＭＩ−７）を樹脂厚みが２８μｍとなるように
溶融押出塗布し、マット面の樹脂層を形成した。Next, low-density polyethylene containing 10% titanium oxide (density 0.5%) was applied to the front surface of the base paper using a melt extruder.
923, MI-7) was applied by melt extrusion to a resin thickness of 28 μm to form a resin layer with a matte surface.
表面をコロナ放電処理した後、印画紙用の乳剤を塗布し
た。After corona discharge treatment of the surface, an emulsion for photographic paper was applied.
ポリエチレン押出温度、ガス吹きつけ量及び吹きつけガ
スの種類を変えた場合に、得られる印画紙の支持体とポ
リエチレン層（ＰＥ層）との剥離強度を測定した所、第
１表の結果が得られた。When the peel strength between the support of the resulting photographic paper and the polyethylene layer (PE layer) was measured when the polyethylene extrusion temperature, gas blowing amount, and blowing gas type were changed, the results shown in Table 1 were obtained. It was done.
何れの場合も剥離強度は５〜３００ｇ重であり、剥離し
てワッペンやシール等として使用する事ができたが、剥
離強度が特に１５〜２００ｇ重の場合に、剥離作業が容
易となることが確認された。In both cases, the peel strength was 5 to 300 g, and it was possible to peel it off and use it as a patch or sticker, but it was found that peeling was easier, especially when the peel strength was 15 to 200 g. confirmed.
第１表Table 1
Claims (1)
乳剤層を塗設した写真用印画紙において、前記支持体と
ポリエチレン層との剥離強度が５乃至３００ｇ重である
ことを特徴とする写真用印画紙。 ２）剥離強度が１５〜２００ｇ重である、特許請求の範
囲第１項に記載の写真用印画紙。[Scope of Claims] 1) A photographic photographic paper in which a polyethylene layer is directly laminated on a support and a photographic emulsion layer is further coated, and the peel strength between the support and the polyethylene layer is 5 to 300 g-force. Photographic paper characterized by: 2) The photographic paper according to claim 1, which has a peel strength of 15 to 200 g weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25809687A JPH01100542A (en) | 1987-10-13 | 1987-10-13 | Photographic paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25809687A JPH01100542A (en) | 1987-10-13 | 1987-10-13 | Photographic paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01100542A true JPH01100542A (en) | 1989-04-18 |
Family
ID=17315453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25809687A Pending JPH01100542A (en) | 1987-10-13 | 1987-10-13 | Photographic paper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01100542A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53125823A (en) * | 1977-04-11 | 1978-11-02 | Fuji Photo Film Co Ltd | Photosensitive paper |
-
1987
- 1987-10-13 JP JP25809687A patent/JPH01100542A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53125823A (en) * | 1977-04-11 | 1978-11-02 | Fuji Photo Film Co Ltd | Photosensitive paper |
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