JPS63306442A - Base for photographic paper - Google Patents
Base for photographic paperInfo
- Publication number
- JPS63306442A JPS63306442A JP14295587A JP14295587A JPS63306442A JP S63306442 A JPS63306442 A JP S63306442A JP 14295587 A JP14295587 A JP 14295587A JP 14295587 A JP14295587 A JP 14295587A JP S63306442 A JPS63306442 A JP S63306442A
- Authority
- JP
- Japan
- Prior art keywords
- tensile strength
- pulp
- paper
- strength
- zero distance
- 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.)
- Granted
Links
- 229920005672 polyolefin resin Polymers 0.000 claims abstract description 7
- 239000011247 coating layer Substances 0.000 claims abstract description 5
- 239000000835 fiber Substances 0.000 abstract description 19
- 239000000123 paper Substances 0.000 description 39
- 238000000034 method Methods 0.000 description 8
- 239000004372 Polyvinyl alcohol Substances 0.000 description 4
- -1 alkyl ketene dimer Chemical compound 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920002401 polyacrylamide Polymers 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 241000208140 Acer Species 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 1
- 240000000731 Fagus sylvatica Species 0.000 description 1
- 235000010099 Fagus sylvatica Nutrition 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 229920006317 cationic polymer Polymers 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000006081 fluorescent whitening agent Substances 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000013054 paper strength agent Substances 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical compound [SiH3]O SCPYDCQAZCOKTP-UHFFFAOYSA-N 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000012756 surface treatment agent Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004078 waterproofing Methods 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Paper (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、写真印画紙用支持体に関し、更に詳しくは、
パルプを用いた原紙の画面にポリオレフィン樹脂被覆層
を設けた写真印画紙用支持体に関する。Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a support for photographic paper, and more specifically,
The present invention relates to a support for photographic paper in which a polyolefin resin coating layer is provided on the screen of base paper using pulp.
（従来の技術）
写真印画紙は、現像所等においてプリントされ液体現像
される。その印画紙の原紙の原料にはパルプを使用する
が、原紙には防水性の点からポリオレフィン樹脂被覆層
等が画面に設けられる。又写真印画紙は、通常ロール状
となっており、プリントされ現像処理されたのち、所定
のサイズに裁断される。(Prior Art) Photographic paper is printed and liquid-developed in a photo lab or the like. Pulp is used as the raw material for the base paper of the photographic paper, and the screen of the base paper is coated with a polyolefin resin coating layer for waterproofing purposes. Furthermore, photographic paper is usually in the form of a roll, and after being printed and developed, it is cut into a predetermined size.
（発明が解決しようとする問題点）
しかしながら、従来のロール状写真印画紙は、裁断後の
切り口にパルプ繊維が多く露出するという外観不足が散
見され、この場合には写真としての美麗さが損なわれ、
その価値が低下するという問題があった。また、これを
改善する方法として、従来、紙匹中のサイズ剤に対する
強度剤の量を１゜８倍以上にする方法、或いは写真印画
紙用支持体の原紙に特定の長さ以下の繊維からなるパル
プを使用する方法（特公昭５６−５４６２８号）等が提
案されているものの、必ずしもロール状写真印画紙の切
り口の外観を改善する方法として有効であるとは言えず
、又、強度剤の使用量を多くする場合にはコスト的に不
利となるなどの問題点があった。(Problems to be Solved by the Invention) However, conventional rolled photographic paper sometimes suffers from a lack of appearance in that many pulp fibers are exposed at the cut end after cutting, and in this case, the beauty of the photograph is impaired. Re,
The problem was that its value was decreasing. In addition, as a method to improve this, conventional methods include increasing the amount of strength agent to sizing agent in the paper web by 1.8 times or more, or adding fibers of less than a certain length to the base paper of the support for photographic paper. Although methods have been proposed such as the use of pulp (Japanese Patent Publication No. 56-54628), it cannot necessarily be said to be effective as a method for improving the appearance of cut edges of rolled photographic paper. When the amount used is large, there are problems such as cost disadvantages.
従って、本発明の目的はロール状の写真印画紙を裁断す
る際の切れ味が良く、裁断後の切り口に殆どバルブ繊維
が露出することなく切り口の外観が良好であると共に、
安価に製造することのでき。Therefore, an object of the present invention is to provide good sharpness when cutting a roll of photographic paper, to have a good appearance at the cut end with almost no bulb fibers exposed at the cut end after cutting,
Can be manufactured at low cost.
る写真印画紙用支持体を提供することにある。An object of the present invention is to provide a support for photographic paper.
（問題を解決するための手段）
本発明の上記の目的は、バルブを用いた原紙の画面にポ
リオレフィン樹脂液ｒｊＬ層を設けた写真印画紙用支持
体において、原紙に用いるバルブが、ゼロ距離引張り強
さくＺ）と引張り強さ（Ｔ）の間に（Ｚ−Ｔ）≦８ｋｇ
なる関係を有するバルブであることを特徴とする写真印
画紙用支持体によって達成された。(Means for Solving the Problems) The above-mentioned object of the present invention is to provide a support for photographic paper in which a polyolefin resin liquid rjL layer is provided on the screen of a base paper using a valve, in which the valve used for the base paper has zero distance tension. Between strength Z) and tensile strength (T) (Z-T)≦8kg
This was achieved by a support for photographic paper, which is characterized by a valve having the following relationship.
ここで言うバルブのゼロ距離引張り強さとは、下記の方
法により測定されたものを指す。The zero-distance tensile strength of the valve referred to herein refers to that measured by the following method.
即ち、使用するバルブをＪＩＳ Ｐ−８２１０「製紙
用バルブの強さ試験方法」のビータ−を用いる方法に準
じてＪＩＳ Ｐ−８１２１ｒバルブのろ木皮試験方法
」のカナダ標準形により２５０ｍ１まで叩解する。次い
でこの叩解したバルブにＪＩＳ Ｐ−８２０９ｒパル
プ試験用手すき紙間製方法」に準じた手すき機を用いて
１７５ ｇ／ｒｒｆの手抄き紙をｔＷｉＭし、しかる後
ハンドプレスによりこの手抄き紙の水分を絞り、ドラム
ドライヤーによって１２０℃の温度で乾燥する。That is, the valve to be used is beaten to 250 ml according to the method using a beater in JIS P-8210 "Method for testing the strength of paper-making valves" and according to the Canadian standard method of "JIS P-8121r Valve bark test method". Next, 175 g/rrf of hand-made paper was applied to the beaten bulb using a hand-made machine according to JIS P-8209r "Method for making hand-made paper for pulp testing", and then this hand-made paper was made using a hand press. The water is squeezed out and dried at a temperature of 120°C using a drum dryer.
この手抄き紙を、マシンカレンダーを用いて厚さ１７５
μに調製しＪＩＳ Ｐ−８１１１ｒ試験用紙の前処理
」に準じて処理を行い、ＪＩＳ Ｐ−８１１３ｒ紙及
び板紙の引張強さ試験方法」に準じて５０ｍｍのつかみ
間隔における引張強さを測定し、さらに、Ｔａｐｐｉ
スタンダード Ｔ−４８１ｒ零距離引張り強さ」に準
じてゼロ距離引張強さを測定する。This handmade paper was processed using a machine calendar to a thickness of 175 mm.
μ, and processed according to ``JIS P-8111r test paper pretreatment'', and measured the tensile strength at a gripping interval of 50 mm according to ``JIS P-8113r paper and paperboard tensile strength test method'', Furthermore, Tappi
Zero distance tensile strength is measured according to "Standard T-481r zero distance tensile strength".
以上の方法で測定されたゼロ距離引張強さはバルブの単
繊維強度を表わし、引張強さは繊維間結合強度を表わす
、印画紙の切れ味は原紙中のパルプ繊維が裁断時に露出
しやすいかどうかということにより左右され、このパル
プ繊維の露出は、ゼロ距離引張強さによって表されるバ
ルブの単繊維強度と、引張強さで表されるパルプ繊維ど
うしの繊維間結合力の両者の相対関係によって決まる。The zero distance tensile strength measured by the above method represents the single fiber strength of the bulb, and the tensile strength represents the bond strength between fibers.The sharpness of the photographic paper is whether the pulp fibers in the base paper are easily exposed during cutting. The exposure of this pulp fiber is determined by the relative relationship between the single fiber strength of the bulb, expressed by the zero distance tensile strength, and the interfiber bonding force between the pulp fibers, expressed by the tensile strength. It's decided.
即ち、単繊維強度が強く、且つ繊維間結合力が弱いもの
ほど切れ味が劣る。逆に、単繊維強度が弱く、且つ繊維
間結合力が強いものほど、言い換えれば、ゼロ距離引張
強さくＺ）が小さく、引張強さ（Ｔ）が大きいほど、即
ち（Ｚ−Ｔ）の値が小さいものほど切れ味が良好である
。That is, the stronger the single fiber strength and the weaker the interfiber bonding force, the poorer the sharpness. Conversely, the weaker the single fiber strength and the stronger the interfiber bonding force, in other words, the smaller the zero distance tensile strength (Z) and the larger the tensile strength (T), that is, the value of (Z-T). The smaller the value, the better the sharpness.
本発明の写真印画紙用支持体の原紙には、（Ｚ−Ｔ）の
値が８ ｋｇ以下、好ましくは６ｋｇ以下のバルブを用
い、バルブのろ木皮は２００〜３５０ｍ１ （カナダ標
準形）とすることが好ましい。For the base paper of the photographic paper support of the present invention, bulbs with a (Z-T) value of 8 kg or less, preferably 6 kg or less, are used, and the bark of the bulbs is 200 to 350 m1 (Canadian standard type). It is preferable.
従って、本発明の写真印画紙用支持体の原紙に用いるバ
ルブは、前記ゼロ距離引張強さと引張り強さとの関係を
満足するものであれば特に制限はなく、種々のバルブを
使用することができる０例えば、後述する実施例からも
明らかな如＜ ＬＢＫＰを単独で使用することも、これ
にＮＢＳＰ、ＬＢＳＰ、ＮＢＫＰ等の１種又は２種以上
を適宜混合して使用することもできる。Therefore, the valve used in the base paper of the photographic paper support of the present invention is not particularly limited as long as it satisfies the relationship between the zero distance tensile strength and the tensile strength, and various valves can be used. For example, as is clear from the examples described below, LBKP can be used alone, or one or more of NBSP, LBSP, NBKP, etc. can be used in an appropriate mixture.
又、このバルブにはクレー、タルク、炭酸カルシウム、
尿素樹脂微粒子等の填料、ロジン、アルキルケテンダイ
マー、高級脂肪酸塩、パラフィンワックス、アルケニル
コハク酸等のサイズ剤、ポリアクリルアミド等の紙力増
強剤、硫酸バンド、カチオン性ポリマー等の定着剤を必
要に応じて添加することができる。更には、このバルブ
表面にゼラチン、スターチ、カルボキシメチルセルロー
ス、ポリアクリルアミド、ポリビニルアルコール、ポリ
ビニルアルコールの変性物等の皮膜形成ポリマーにより
表面サイズ処理することもできる。この場合のポリビニ
ルアルコール変性物としては、カルボキシル変性物、シ
ラノール変性物やアクリルアミドとの共重合物等が挙げ
られる。また皮膜形成性ポリマーにより表面サイズ処理
する場合の皮膜形成性ポリマーの塗布量は０．１〜５．
０ｇ／ｎ（、好ましくは０．５〜２．０ｇ／イに調整さ
れる。更にこの際の皮膜形成性ポリマーには、必要に応
じて帯電防止剤、螢光増白剤、顔料、消泡剤等を添加す
ることができる０本発明の写真用支持体に使用する原紙
は、通常、上述したバルブ、添加剤、表面処理剤等によ
り構成され、坪量８０ｇ／ｒｄ乃至２００ ｇ／ｒｄ、
厚さ８０μ乃至２３０μに調整される。This valve also contains clay, talc, calcium carbonate,
Requires fillers such as urea resin particles, rosin, alkyl ketene dimer, higher fatty acid salts, paraffin wax, sizing agents such as alkenyl succinic acid, paper strength agents such as polyacrylamide, fixing agents such as sulfuric acid, cationic polymers, etc. It can be added accordingly. Furthermore, the surface of the valve can be surface-sized with a film-forming polymer such as gelatin, starch, carboxymethyl cellulose, polyacrylamide, polyvinyl alcohol, or a modified product of polyvinyl alcohol. Examples of polyvinyl alcohol modified products in this case include carboxyl modified products, silanol modified products, and copolymers with acrylamide. In addition, when the surface size is treated with a film-forming polymer, the coating amount of the film-forming polymer is 0.1 to 5.
0 g/n (preferably adjusted to 0.5 to 2.0 g/n).Furthermore, the film-forming polymer at this time may contain an antistatic agent, a fluorescent whitening agent, a pigment, and an antifoaming agent as necessary. The base paper used for the photographic support of the present invention is usually composed of the above-mentioned valves, additives, surface treatment agents, etc., and has a basis weight of 80 g/rd to 200 g/rd,
The thickness is adjusted to 80μ to 230μ.
この原紙の画面に積層するポリオレフィン樹脂被覆層に
は、例えば１５μ乃至４０μのポリエチレン層等を使用
することができる。写真乳化層を形成せしめる面のポリ
オレフィン樹脂皮膜層には、５重量％乃至２０重量％の
酸化チタンを含有させる。For the polyolefin resin coating layer laminated on the screen of the base paper, for example, a polyethylene layer with a thickness of 15 μm to 40 μm can be used. The polyolefin resin film layer on the surface on which the photographic emulsion layer is formed contains 5% to 20% by weight of titanium oxide.
（発明の効果）
以上詳述した如く、本発明の写真印画紙用支持体は、原
紙に使用するパルプの特性値を選択するだけで、裁断後
の切り口の外観を改善することができ、しかも安価であ
る。(Effects of the Invention) As detailed above, the support for photographic paper of the present invention can improve the appearance of the cut end after cutting by simply selecting the characteristic values of the pulp used for the base paper. It's cheap.
以下実施例により本発明を具体的に説明するが、本発明
はこれら実施例のよって限定されるものではない、なお
、本実施例中、裁断機での切れ味は写真用支持体を富士
写真フィルム株式会社製オートカッター Ｆｅ２ ３０
Ｋ で裁断し、その切り口の形状、即ちパルプ繊維の
露出の状態を目視にて判定した。この場合、パルプ繊維
の露出の状態を、露出の最も少ないグレード１から最も
多いグレード５までのグレードで表した。The present invention will be specifically explained below with reference to Examples, but the present invention is not limited by these Examples. Co., Ltd. auto cutter Fe2 30
K, and the shape of the cut end, that is, the state of exposure of the pulp fibers, was visually determined. In this case, the state of exposure of the pulp fibers was expressed in grades from grade 1, which is the least exposed, to grade 5, which is the most exposed.
〔実施例１、実施例２及び比較例１〕
第１表のゼロ距離引張強さを有するパルプを用い、ディ
スクリファイナ−により２５０ｍ１ （カナダ標準形
）に叩解した。但し、ＬＢＫＰ−１はかえでから製造し
たパルプであり、ＬＢＫＰ−２は、かえで、ぶな及びぼ
ぶらから製造したパルプである６次いで紙匹中絶乾でパ
ルプに対し、ステアリン酸ナトリウムを１．５重置％、
ポリアクリルアミドを１．５重量％、ポリアミドポリア
ミンエピクロルヒドリンを０．３重量％、硫酸バンドを
１．５重量％加え試料を作製した。これらの試料を用い
、長網抄紙機により坪量１７０ ｇ／ｒｄ、厚さ１６５
μの紙を抄造した。サイズプレスにおける表面サイズは
、ポリビニルアルコールを、付着量として１．０ｇ／ｒ
ｒｆ塗布した。[Example 1, Example 2, and Comparative Example 1] Pulp having the zero distance tensile strength shown in Table 1 was used and refined to 250 m1 (Canadian standard type) using a disc refiner. However, LBKP-1 is a pulp made from maple, and LBKP-2 is a pulp made from maple, beech, and bobura. Place%,
A sample was prepared by adding 1.5% by weight of polyacrylamide, 0.3% by weight of polyamide polyamine epichlorohydrin, and 1.5% by weight of aluminum sulfate. Using these samples, the basis weight was 170 g/rd and the thickness was 165 mm using a Fourdrinier paper machine.
μ paper was made. The surface size in the size press is 1.0 g/r of polyvinyl alcohol as a coating amount.
RF coated.
このようにして得た支持体をオートカッターにより裁断
し、それぞれの切り口の状態を目視により判定し、グレ
ード付けした。The support thus obtained was cut using an autocutter, and the condition of each cut was visually judged and graded.
この結果、第１表から明らかな様に、本発明の範囲を満
足する（Ｚ−Ｔ）の値が小さいパルプを使って抄造した
場合の支持体の切れ味が良好であるのに対し、（Ｚ−Ｔ
）の値が本発明を越える場合には支持体の切れ味が悪く
なることが実証され、これにより本発明の効果が確認さ
れた。As a result, as is clear from Table 1, the sharpness of the support is good when paper is made using pulp with a small value of (Z-T) that satisfies the range of the present invention, whereas -T
It was demonstrated that when the value of ) exceeds the value of the present invention, the sharpness of the support deteriorates, thereby confirming the effect of the present invention.
第１表
〔実施例３、実施例４及び比較例２〕
パルプとして第２表に示すゼロ距離引張強さおよび引張
強さを有する混合パルプを用いた他は実施例１と同様に
して写真印画紙用支持体を作製し、この支持体の切れ味
を目視評価した。なお、混合バルブは個々のパルプを別
々に叩解したものを混合することにより得られたもので
ある。Table 1 [Example 3, Example 4, and Comparative Example 2] Photographic prints were made in the same manner as in Example 1, except that mixed pulp having the zero distance tensile strength and tensile strength shown in Table 2 was used as the pulp. A paper support was prepared, and the sharpness of this support was visually evaluated. Note that the mixing valve is obtained by mixing pulps that have been beaten separately.
結果を第２表に示す。The results are shown in Table 2.
第２表の結果から明らかな様に、数種のパルプを混合し
た混合バルブを使用した場合にも上記実施例１、比較例
１と同様の結果となることから、本発明の効果は明らか
である。As is clear from the results in Table 2, the same results as in Example 1 and Comparative Example 1 are obtained when a mixing valve containing several types of pulp is used, so the effects of the present invention are clear. be.
Claims (1)
を設けた写真印画紙用支持体において、原紙に用いるパ
ルプが、ゼロ距離引張り強さ（Ｚ）と引張り強さ（Ｔ）
の間に（Ｚ−Ｔ）≦８ｋｇなる関係を有するパルプであ
ることを特徴とする写真印画紙用支持体。In a photographic paper support in which a polyolefin resin coating layer is provided on the screen of a base paper using pulp, the pulp used for the base paper has a zero distance tensile strength (Z) and a tensile strength (T).
A support for photographic paper, characterized in that it is a pulp having the relationship (Z-T)≦8kg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62142955A JPH0750315B2 (en) | 1987-06-08 | 1987-06-08 | Support for photographic paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62142955A JPH0750315B2 (en) | 1987-06-08 | 1987-06-08 | Support for photographic paper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63306442A true JPS63306442A (en) | 1988-12-14 |
| JPH0750315B2 JPH0750315B2 (en) | 1995-05-31 |
Family
ID=15327542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62142955A Expired - Fee Related JPH0750315B2 (en) | 1987-06-08 | 1987-06-08 | Support for photographic paper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0750315B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017160552A (en) * | 2016-03-07 | 2017-09-14 | 花王株式会社 | Crepe paper and manufacturing method therefor, and manufacturing method of absorptive article |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6069649A (en) * | 1983-09-26 | 1985-04-20 | Mitsubishi Paper Mills Ltd | Support for photographic printing paper |
-
1987
- 1987-06-08 JP JP62142955A patent/JPH0750315B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6069649A (en) * | 1983-09-26 | 1985-04-20 | Mitsubishi Paper Mills Ltd | Support for photographic printing paper |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017160552A (en) * | 2016-03-07 | 2017-09-14 | 花王株式会社 | Crepe paper and manufacturing method therefor, and manufacturing method of absorptive article |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0750315B2 (en) | 1995-05-31 |
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