JPH0648360B2 - Support for photographic paper - Google Patents
Support for photographic paperInfo
- Publication number
- JPH0648360B2 JPH0648360B2 JP62012834A JP1283487A JPH0648360B2 JP H0648360 B2 JPH0648360 B2 JP H0648360B2 JP 62012834 A JP62012834 A JP 62012834A JP 1283487 A JP1283487 A JP 1283487A JP H0648360 B2 JPH0648360 B2 JP H0648360B2
- Authority
- JP
- Japan
- Prior art keywords
- support
- fatty acid
- higher fatty
- paper
- resin
- 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
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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は写真印画紙用支持体に関するものであり、更に
詳しくは原紙の両面を樹脂で被覆した写真印画紙用支持
体において、印画紙端部の裁断面からの現像処理液（以
下現像液と記す）の浸み込みによるエッヂ汚れを防止し
た写真印画紙用支持体に関するものである。Description: TECHNICAL FIELD The present invention relates to a photographic printing paper support, and more particularly to a photographic printing paper support in which both sides of a base paper are coated with a resin. The present invention relates to a support for photographic printing paper, which prevents edge stains due to penetration of a developing solution (hereinafter referred to as a developing solution) from the cut surface of a part.
（従来技術） 従来印画紙用支持体としては、紙の片面に硫酸バリウム
を主体とするバライタ層を被覆した、いわゆるバライタ
紙が使用されていたが、最近では現像樹脂の自動化迅速
化を図る為に原紙の両面を樹脂で被覆した防水印画紙が
使用される様になってきた。しかしながら上記防水印画
紙を使用した場合でも、印画紙端部の切断面からの現像
液の浸透は防止できない。端部の切断面から浸透した現
像液は短時間の写真処理では除去できず、熱あるいは経
時により茶色に変色し、写真のエッヂ部の汚れとなり、
写真としての価値を著しく損う。このエッヂ汚れを防止
する為に原紙層に高いサイズ性を付与する方法が試みら
れている。(Prior Art) Conventionally, as a support for photographic paper, so-called baryta paper in which one side of paper is coated with a baryta layer mainly composed of barium sulfate was used, but recently, in order to speed up automation of developing resin. In addition, waterproof photographic printing paper has been used in which both sides of the base paper are coated with resin. However, even when the above waterproof photographic paper is used, it is not possible to prevent the permeation of the developing solution from the cut surface of the edge of the photographic paper. The developer that has penetrated from the cut surface of the edge cannot be removed by a short time photographic processing, and it turns brown due to heat or aging, and becomes a stain on the edge part of the photograph.
Remarkably loses its value as a photograph. In order to prevent this edge stain, a method of giving a high sizing property to the base paper layer has been attempted.
しかし、一般的なサイズ剤である高級脂肪酸又はその塩
とその定着剤である塩化アルミや硫酸バンド等を用いて
も十分なサイズ性が得られないのが現状である。However, under the present circumstances, sufficient sizing properties cannot be obtained even when a higher fatty acid or a salt thereof which is a general sizing agent and an aluminum chloride or a sulfuric acid band which is a fixing agent thereof are used.
（発明が解決しようとする問題点） したがって本発明はの目的は、サイズ剤として高級脂肪
酸又は高級脂肪酸塩を用いて、高いサイズ性も持たせ、
樹脂被覆された写真印画紙用支持体の端部へ現像液が浸
み込んで発生するエッヂ汚れを防止する事である。(Problems to be Solved by the Invention) Therefore, an object of the present invention is to use a higher fatty acid or a higher fatty acid salt as a sizing agent to impart high sizing property,
The purpose of this is to prevent the edge stain of the edge of the resin-coated support for photographic printing paper, which is caused when the developer penetrates.
（問題点を解決するための手段および作用） 本発明者は、前述の欠点を克服する為鋭意研究の結果、
原紙の両面を樹脂で被覆した写真印画紙用支持体におい
て該原紙中に高級脂肪酸又は高級脂肪酸塩とポリ水酸化
アルミニウムを含有することにより、上記目的を達成す
るに至った。(Means and Actions for Solving Problems) The present inventor has conducted extensive studies to overcome the above-mentioned drawbacks,
The above object has been achieved by containing a higher fatty acid or higher fatty acid salt and polyaluminum hydroxide in the photographic paper support in which both sides of the base paper are coated with a resin.
本発明に使用される高級脂肪酸又は高級脂肪酸塩として
は、その炭素数が１２〜２２のものが好ましい。炭素数
が１２よりも小さい脂肪酸又はその塩は、サイズ性が低
く現像液の侵入を防止できない。炭素数が２２以上の脂
肪酸又はその塩は水溶性が低下し、実用的でない。The higher fatty acid or higher fatty acid salt used in the present invention preferably has 12 to 22 carbon atoms. A fatty acid or a salt thereof having a carbon number of less than 12 has a small size and cannot prevent the invasion of a developing solution. Fatty acids having 22 or more carbon atoms or salts thereof have poor water solubility and are not practical.
高級脂肪酸又は高級脂肪酸塩の添加量は対パルプ絶乾重
量当り0.5〜2.0重量％である事が望ましい。The higher fatty acid or higher fatty acid salt is preferably added in an amount of 0.5 to 2.0% by weight based on the dry weight of pulp.
0.5重量％よりも少ないと、サイズ性が低く、現像液の
侵入を防止できない。2.0重量％よりも多く添加して
も、サイズ性の向上が認められないばかりか、経済的に
も不利である。If it is less than 0.5% by weight, the size property is low and the invasion of the developer cannot be prevented. Even if added in an amount of more than 2.0% by weight, improvement in size is not recognized, and it is economically disadvantageous.
本発明に使用されるポリ水酸化アルミニウムとしては
｛Al(OH)3｝ｎ・AlCl3の構造を持ち、ｎ＝２０±１であ
るものが好ましい。高級脂肪酸（塩）に対するポリ水酸
化アルミニウムの比率は１／２０〜２／１、好ましくは
１／１０〜１／１である。この範囲より少なくても、多
くても十分なサイズ性が得られず、現像液の侵入を防止
できない。The polyaluminum hydroxide used in the present invention is preferably one having a structure of {Al (OH) 3 } n.AlCl 3 and n = 20 ± 1. The ratio of polyaluminum hydroxide to the higher fatty acid (salt) is 1/20 to 2/1, preferably 1/10 to 1/1. If the amount is smaller or larger than this range, sufficient size cannot be obtained and the invasion of the developing solution cannot be prevented.
高級脂肪酸（塩）とポリ水酸化アルミニウムの系にさら
に陽イオン系湿潤力増強剤を加えると、さらに一段とサ
イズ性が高くなり、現像液の侵入が小さくなる。When a cationic wetting power enhancer is further added to the system of higher fatty acid (salt) and polyaluminum hydroxide, the size is further enhanced and the penetration of the developing solution is reduced.
本発明に使用される陽イオン系湿潤力増強剤としては、
ポリアミンポリアミドエピクロルヒドリンが好ましく、
その添加量は、対パルプ絶乾重量当り0.1〜1.0重量％で
あることが好ましく、0.1重量％より少ないとサイズ性
の改善効果は小さく、又1.0重量％より多く添加しても
その効果に改善は見られない。As the cationic wetting power enhancer used in the present invention,
Polyamine polyamide epichlorohydrin is preferred,
The amount of addition is preferably 0.1 to 1.0% by weight based on the absolute dry weight of pulp. If it is less than 0.1% by weight, the effect of improving the sizing property is small, and if it is added in excess of 1.0% by weight, the effect is improved. Can't be seen.
本発明により製造される原紙に於て使用するパルプは、
通常の製紙で用いられるパルプは勿論のこと合成パルプ
も用いることが出来る。又、内添薬品としては、前記サ
イズ剤、定着剤、湿潤力増強剤の他に乾強力増強剤、充
填剤、等通常の製紙で使われているものを用いることが
できる。The pulp used in the base paper produced by the present invention is
Not only pulp used in ordinary papermaking but also synthetic pulp can be used. As the internal chemicals, in addition to the above-mentioned sizing agent, fixing agent, wetting power enhancer, dry strength enhancer, filler, and the like used in ordinary papermaking can be used.
更に、この紙は、表面にサイズ剤を施すことができる。In addition, the paper can be surface sized.
本発明に使用される樹脂としては、ポリオレフィン樹脂
や電子線により硬化する樹脂を用いることができる。ポ
リオレフィン樹脂としては、ポリエチレン、ポリプロピ
レン等が好ましい。又樹脂に酸化チタン、アルミナ等の
白色顔料、青色顔料、通常樹脂に混合される安定剤、酸
化防止剤、分散剤、滑剤等を加えても良い。As the resin used in the present invention, a polyolefin resin or a resin curable by an electron beam can be used. The polyolefin resin is preferably polyethylene, polypropylene or the like. Further, a white pigment such as titanium oxide or alumina, a blue pigment, a stabilizer, an antioxidant, a dispersant, a lubricant and the like which are usually mixed with the resin may be added to the resin.
本発明により製造される樹脂被覆紙は、走行する原紙上
にポリオレフィン樹脂の場合は加熱溶融した樹脂を流延
するいわゆる押出コーティング法によって製造され、そ
の両面が樹脂により被覆される。又電子線により硬化す
る樹脂の場合はグラビアコーター、ブレードコーター等
一般に用いられるコーターにより樹脂を塗布した後、電
子線を照射し、樹脂を硬化させて被覆する。The resin-coated paper produced according to the present invention is produced by a so-called extrusion coating method in which a heat-melted resin is cast on a running base paper in the case of a polyolefin resin, and both surfaces thereof are coated with the resin. In the case of a resin that is cured by an electron beam, the resin is applied by a commonly used coater such as a gravure coater or a blade coater, and then the resin is irradiated with an electron beam to cure and coat the resin.
本発明により製造される写真印画紙用支持体は、カラー
印画紙用紙、白黒印画紙用紙、写植印画紙用紙、複写印
画紙用紙等に使用される。The support for photographic printing paper produced according to the present invention is used for color printing paper, black-and-white printing paper, typesetting printing paper, copy printing paper and the like.
（発明の実施例） 以下に実施例を挙げ本発明の詳細な説明を行う。(Examples of the Invention) The present invention will be described in detail below with reference to Examples.
なお、本発明は実施例に限定されるものではない。The present invention is not limited to the examples.
木材パルプ（ＬＢＫＰ／ＮＢＫＰ＝１／１）繊維をビー
ターにより、カナダ標準濾水度で３５０mlまで叩解し、
表１に示す内添配合に従って、通常の抄紙法により１６
０ｇ／m2の紙を抄紙した。Wood pulp (LBKP / NBKP = 1/1) fibers were beaten with a beater to 350 ml with Canadian standard freeness,
According to the internal addition formulation shown in Table 1, 16 by the ordinary papermaking method.
Paper of 0 g / m 2 was made.
次にこの原紙の表面に酸化チタン１０％を含む低密度ポ
リエチレンを、裏面には低密度ポリエチレン／高密度ポ
リエチレン＝１／１をそれぞれ樹脂温度３３０℃で押出
塗工機により３０μｍの厚さにコーティングし、写真印
画紙用支持体を得た。エッヂ汚れの評価は次の方法によ
り行った。すなわち、巾8.25cmに裁断した写真印画紙用
支持体を連続自動現像機（ＦＣ製作所製、カラーロール
プロセッサー）によって現像処理した。処理を終わった
支持体端部の裁断面からの現像液の浸み込み深さを拡大
鏡を用いて読み取った。その結果を第１表に示す。Next, the surface of this base paper is coated with low-density polyethylene containing 10% titanium oxide, and the back surface is coated with low-density polyethylene / high-density polyethylene = 1/1 at a resin temperature of 330 ° C. with an extrusion coater to a thickness of 30 μm. Then, a support for photographic printing paper was obtained. The edge stain was evaluated by the following method. That is, a photographic printing paper support cut into a width of 8.25 cm was developed by a continuous automatic developing machine (FC Co., Ltd., color roll processor). The penetration depth of the developer from the cut surface of the end of the support after the processing was read using a magnifying glass. The results are shown in Table 1.
第１表の結果より明らかな様に本発明により製造された
支持体はエッヂ汚れが改良され、写真印画紙用支持体と
して優れていることがわかる。As is clear from the results shown in Table 1, the support produced according to the present invention has improved edge stain and is excellent as a support for photographic printing paper.
Claims (4)
支持体において、該原紙中に高級脂肪酸又は高級脂肪酸
塩とポリ水酸化アルミニウム及び陽イオン系湿潤力増強
剤としてポリアミドエピクロルヒドリン樹脂を６．０よ
り高いpH領域で含有することを特徴とする写真印画紙用
支持体。1. A support for photographic printing paper, wherein both sides of a base paper are coated with a resin, wherein a higher fatty acid or higher fatty acid salt, polyaluminum hydroxide, and a polyamide epichlorohydrin resin as a cationic wetting power enhancer are added to the base paper. A support for photographic printing paper, characterized in that it is contained in a pH range higher than 0.0.
２〜２２である特許請求の範囲第１項記載の写真印画紙
用支持体。2. The higher fatty acid or higher fatty acid salt has 1 carbon atom.
The support for photographic printing paper according to claim 1, which is 2 to 22.
３｝ｎ・ＡｌＣｌ３の構造でｎ＝２０±１である特許請
求の範囲第１項記載の写真印画紙用支持体。3. Polyaluminum hydroxide is {A1 (OH)
The support for photographic printing paper according to claim 1, wherein the structure of 3 } n.AlCl 3 is n = 20 ± 1.
脂肪酸又は高級脂肪酸塩の添加量に対して、その比率が
１／２０〜２／１である特許請求の範囲第１項記載の写
真印画紙用支持体。4. A photographic print according to claim 1, wherein the amount of polyaluminum hydroxide added is 1/20 to 2/1 with respect to the amount of higher fatty acid or higher fatty acid salt added. Support for paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62012834A JPH0648360B2 (en) | 1987-01-21 | 1987-01-21 | Support for photographic paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62012834A JPH0648360B2 (en) | 1987-01-21 | 1987-01-21 | Support for photographic paper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63180949A JPS63180949A (en) | 1988-07-26 |
| JPH0648360B2 true JPH0648360B2 (en) | 1994-06-22 |
Family
ID=11816405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62012834A Expired - Fee Related JPH0648360B2 (en) | 1987-01-21 | 1987-01-21 | Support for photographic paper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0648360B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114673025B (en) | 2016-06-01 | 2023-12-05 | 艺康美国股份有限公司 | High-efficiency strength scheme for papermaking in high-charge-demand systems |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5647996A (en) * | 1979-09-20 | 1981-04-30 | Chiyou Lsi Gijutsu Kenkyu Kumiai | Semiconductor memory device |
| IT1163643B (en) * | 1983-07-01 | 1987-04-08 | Prodeco Spa | PROCEDURE FOR PAPER COLLATION, IN PARTICULAR IN THE PRESENCE OF A SENSITIVE CHARGE IN THE ACID ENVIRONMENT |
| JPS6116884A (en) * | 1984-07-02 | 1986-01-24 | Mitsubishi Paper Mills Ltd | Ink jet recording paper |
-
1987
- 1987-01-21 JP JP62012834A patent/JPH0648360B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63180949A (en) | 1988-07-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |