JPH04260576A - Supporter for photosensitive material - Google Patents
Supporter for photosensitive materialInfo
- Publication number
- JPH04260576A JPH04260576A JP3022265A JP2226591A JPH04260576A JP H04260576 A JPH04260576 A JP H04260576A JP 3022265 A JP3022265 A JP 3022265A JP 2226591 A JP2226591 A JP 2226591A JP H04260576 A JPH04260576 A JP H04260576A
- Authority
- JP
- Japan
- Prior art keywords
- web
- tip
- support
- cutting edge
- photosensitive material
- 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
- 239000000463 material Substances 0.000 title claims abstract description 17
- 230000007423 decrease Effects 0.000 claims abstract description 9
- 238000005520 cutting process Methods 0.000 claims description 22
- 238000004804 winding Methods 0.000 abstract description 17
- 238000000034 method Methods 0.000 description 7
- 230000037303 wrinkles Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920002284 Cellulose triacetate Polymers 0.000 description 2
- 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 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001747 Cellulose diacetate Polymers 0.000 description 1
- 239000000020 Nitrocellulose Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- FJWGYAHXMCUOOM-QHOUIDNNSA-N [(2s,3r,4s,5r,6r)-2-[(2r,3r,4s,5r,6s)-4,5-dinitrooxy-2-(nitrooxymethyl)-6-[(2r,3r,4s,5r,6s)-4,5,6-trinitrooxy-2-(nitrooxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-3,5-dinitrooxy-6-(nitrooxymethyl)oxan-4-yl] nitrate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O)O[C@H]1[C@@H]([C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@@H](CO[N+]([O-])=O)O1)O[N+]([O-])=O)CO[N+](=O)[O-])[C@@H]1[C@@H](CO[N+]([O-])=O)O[C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O FJWGYAHXMCUOOM-QHOUIDNNSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 229920001220 nitrocellulos Polymers 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920006289 polycarbonate film Polymers 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
Landscapes
- Storage Of Web-Like Or Filamentary Materials (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は感光材料用支持体に関す
るものである。さらに詳細には感光材料をロール状に巻
重ねた時に生ずる支持体先端の折れ跡（以後「映り」と
表示）、圧力カブリ及びシワ等を防止できる感光材料用
支持体に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support for photosensitive materials. More specifically, the present invention relates to a support for a photosensitive material that can prevent creases (hereinafter referred to as "reflection"), pressure fog, wrinkles, etc. at the tip of the support that occur when the photosensitive material is wound into a roll.
【０００２】0002
【従来の技術】従来、感光材料用支持体（以後「ウェブ
」と表示）は先端の側断面形状及び平面形状が共に略直
角になっており、巻芯にウェブを巻回すると図１２に示
すように巻芯４と接触したウェブ３の先端１の厚みｔに
よって、ウェブ３の先端１と巻芯４との間に段差が生じ
る。かかる段差のあるところにウェブ３を巻重ねると、
ウェブ３の先端部分に線状の折れ跡２（以後「映り」と
表示）やシワが何重にも誘発されるという問題があった
。[Prior Art] Conventionally, a support for photosensitive materials (hereinafter referred to as a "web") has a tip whose side cross-sectional shape and planar shape are both approximately at right angles, and when the web is wound around a core, it is shown in Fig. 12. Due to the thickness t of the tip 1 of the web 3 in contact with the core 4, a step is created between the tip 1 of the web 3 and the core 4. When web 3 is wrapped around such a step,
There was a problem in that linear fold marks 2 (hereinafter referred to as "reflections") and wrinkles were induced in the tip portion of the web 3 in multiple layers.
【０００３】特にウェブに感光層を塗布した感光材料で
は上記のような物理的な変形を生じさせるだけでなく、
巻芯に感光材料を巻回する時、及び保管中に巻き付けテ
ンションや自重により、ウェブ先端の段差に起因する圧
力差によって圧力カブリが発生する。圧力カブリは一周
面のみに発生するだけでなく何重にも発生するという問
題があった。この問題の改善方法として図１０に略図を
示す実開昭６３−４１０７２号公報に開示されている巻
芯４の長さ軸に沿って伸びた段差状切欠き部６を形成す
る方法や実開昭５３−３２０２１号公報に開示されてい
るウェブの先端の平面形状を直線状に傾斜させる方法が
行われている。In particular, photosensitive materials in which a photosensitive layer is coated on a web not only cause the above-mentioned physical deformation, but also
When winding the photosensitive material around the core and during storage, pressure fog occurs due to the pressure difference caused by the step at the leading edge of the web due to the winding tension and its own weight. There is a problem in that pressure fog occurs not only on one circumferential surface but also on multiple layers. As a method of improving this problem, a method of forming a stepped notch 6 extending along the length axis of the winding core 4 is disclosed in Japanese Utility Model Application No. 63-41072, a schematic diagram of which is shown in FIG. A method disclosed in Japanese Patent No. 53-32021 has been used in which the planar shape of the tip of the web is inclined linearly.
【０００４】0004
【発明が解決しようとする課題】上述した従来一般に用
いられているウェブの先端の側断面形状及び平面形状が
共に略直角になっているウェブは、ウェブ、製造時に映
りが何重にも発生するだけでなく、このウェブに感光層
を塗布すると塗布層に映りムラや泡、筋等の塗布故障が
発生する。さらに感光層塗布済の感光材料としての品質
の点においても、上記塗布故障や先端、形状に起因する
圧力カブリが発生するという問題があった。また実開昭
６３−４１０７２号公報に開示されている方法は、巻き
芯毎に段差状切欠き部を形成する必要があり巻き芯が特
別注文となり高価である。さらに広幅ウェブの先端を感
光材料を取り扱う非常に形状が見にくい暗いセーフライ
ト下で段差状切欠き部に確実に合せることは困難である
。さらにまたウェブの厚み毎に段差状切欠き部を変更す
る必要があり感光材料用としては実用化に多くの問題が
ある。また実開昭５３−３２０２１号公報に開示されて
いる方法は、ウェブの先端の平面形状が、直線状に傾斜
しているので、ウェブのハンドリング性は改善されてお
り、シワ、筋の発生も多少減少できるが側断面形状が直
角になっているため圧力カブリの問題があった。[Problems to be Solved by the Invention] In the above-mentioned conventionally commonly used webs in which both the side cross-sectional shape and the planar shape of the leading end of the web are approximately at right angles, multiple reflections occur during web manufacturing. In addition, when a photosensitive layer is coated on this web, coating failures such as unevenness, bubbles, and streaks occur due to reflection on the coated layer. Furthermore, in terms of quality as a photosensitive material coated with a photosensitive layer, there are problems such as the above-mentioned coating failure and the occurrence of pressure fog due to the tip and shape. Furthermore, the method disclosed in Japanese Utility Model Application Publication No. 63-41072 requires the formation of a step-like notch for each winding core, and the winding core is specially ordered and is expensive. Furthermore, it is difficult to reliably align the leading edge of the wide web with the step-like notch under a dark safelight, which makes it difficult to see the shape when handling photosensitive materials. Furthermore, it is necessary to change the step-like notch for each thickness of the web, which poses many problems in practical use for photosensitive materials. In addition, in the method disclosed in Japanese Utility Model Application Publication No. 53-32021, since the planar shape of the tip of the web is linearly inclined, the handling properties of the web are improved and wrinkles and streaks are prevented. Although this can be reduced somewhat, there is a problem of pressure fog because the side cross-sectional shape is at right angles.
【０００５】本発明はかかる課題を解決するためになさ
れたもので、安価な方法で映りや圧力カブリを半分以下
に減少できる新規な感光材料用支持体を提供することを
目的とする。The present invention has been made to solve the above problems, and an object of the present invention is to provide a novel support for photosensitive materials that can reduce reflection and pressure fog to less than half by an inexpensive method.
【０００６】[0006]
【課題を解決するための手段】本発明の感光材料用支持
体は上記目的を達成するために、支持体の先端の厚みが
漸次低減している側断面形状としたものである。特に好
ましくは支持体の先端の厚みが漸次低減している側断面
形状とし、先端部切辺を幅よりも長くなるような平面形
状としたものである。ウェブの先端の側断面形状は、図
２（ａ）ないし（ｄ）、及び図３に示すように各種の形
状が可能である。いずれもウェブの先端の厚みが先端に
向って暫次低減している傾斜面を有する側断面形状とな
っている。この結果外力を傾斜面全体に分散させ小さく
している。（図中の点線は従来のウェブの先端の側断面
形状を示す。即ちウェブの先端が直角である。）ウェブ
の先端部切辺の平面形状は図４（ａ）ないし（ｂ）、図
５（ａ）ないし（Ｆ）、図６（ａ）ないし（ｄ）、図７
（ａ）ないし（ｃ）及び図９に代表例を示すように各種
の形状を用いることが可能である。好ましいのは図９を
除いた図４ないし図７に示した幅（図中の点線で示した
先端部切辺が直角の最短長さを言う）よりも長くなるよ
うな平面形状である。このような平面形状とすることに
より外力を長い切辺に分散させ小さくすることができる
。[Means for Solving the Problems] In order to achieve the above object, the support for a photosensitive material of the present invention has a side cross-sectional shape in which the thickness of the tip of the support is gradually reduced. Particularly preferably, the tip of the support has a side cross-sectional shape in which the thickness gradually decreases, and a planar shape in which the cutting edge of the tip is longer than the width. The side cross-sectional shape of the tip of the web can have various shapes as shown in FIGS. 2(a) to 2(d) and FIG. 3. In both cases, the web has a side cross-sectional shape with an inclined surface in which the thickness at the tip of the web gradually decreases toward the tip. As a result, the external force is dispersed over the entire slope and is reduced. (The dotted line in the figure shows the side cross-sectional shape of the tip of the conventional web. In other words, the tip of the web is at a right angle.) The planar shape of the cutting edge of the tip of the web is shown in FIGS. 4(a) to 5(b) and 5 (a) to (F), Figures 6 (a) to (d), Figure 7
Various shapes can be used as shown in FIGS. 9(a) to 9(c) and representative examples in FIG. Preferably, it has a planar shape that is longer than the width shown in FIGS. 4 to 7 excluding FIG. 9 (the shortest length at which the cutting edge of the tip is perpendicular to the dotted line in the figure). With such a planar shape, the external force can be dispersed over a long cutting edge and reduced.
【０００７】[0007]
【作用】即ち、ウェブが巻き芯の第１周目から第２周目
へと巻き重ねられる際、第２周目以降のウェブは巻き芯
上の第１周目のウェブの先端の傾斜断面に沿ってゆるや
かに巻きつけられる。この結果、巻き取られる際に生じ
るウェブの巻き芯円周方向への力をウェブ巻き始めの第
１周目の一直線状の先端に集中せず、第１周目の傾斜断
面全体に沿って分散させている。更にウェブの先端部切
辺を幅（図中の点線）よりも長くすることにより外力を
ウェブ先端部の長い切辺に沿って分散させている。特に
上記の支持体の先端の厚みが漸次低減している傾斜断面
を有する側断面形状とし、先端部切辺を幅よりも長くな
るような平面形状とした場合は傾斜断面積が相乗的に大
きくなり、外力を大きくなった面積に分散させ、「映り
」や「圧力カブリ」及び「巻きジワ」が発生するのを防
止している。[Function] That is, when the web is wound from the first turn to the second turn on the winding core, the web from the second turn onwards will follow the inclined cross section of the tip of the web in the first turn on the winding core. It can be wrapped loosely along the line. As a result, the force generated when the web is wound in the circumferential direction of the web core is not concentrated at the linear tip of the first round at the beginning of web winding, but is distributed along the entire inclined cross section of the first round. I'm letting you do it. Furthermore, by making the cutting edge of the leading end of the web longer than the width (dotted line in the figure), the external force is dispersed along the long cutting edge of the leading edge of the web. In particular, if the tip of the support described above has a side cross-sectional shape with an inclined cross section in which the thickness is gradually reduced, and the tip cut edge is made into a planar shape that is longer than the width, the inclined cross-sectional area will synergistically increase. This disperses the external force over a larger area and prevents "reflection", "pressure fog" and "wrinkle wrinkles" from occurring.
【０００８】本発明で用いる支持体としてはポリスチレ
ンフィルム、三酢酸セルロースフィルム、二酢酸セルロ
ースフィルム、酢酸ブチルセルロースフィルム、ポリエ
チレンテレフタレートフィルム、硝酸セルロースフィル
ム、ポリカーボネートフィルム、塩化ビニルフィルム、
合成紙、熱可塑性樹脂被覆紙等がある。以下図面に基づ
いて、本発明の内容を詳細に説明する。図１は本発明で
特に好ましい側断面形状及び平面形状共に直線的に傾斜
させたウェブである。好ましいウェブの側断面形状は傾
斜角度αが図２（ａ）に示すように巻き芯側のウェブ表
面に対して９０度以下、好ましくは１０〜８０度、特に
好ましくは２０〜５０度である。または第３図に示すよ
うに９０度以上、好ましくは１００〜１７０度、特に好
ましくは１３０〜１６０度である。１０度未満又は７０
度をこえると製造が困難であり、８０〜１００度の範囲
では映りや、圧力カブリが発生しやすくなる。本発明は
図２（ｂ）ないし（ｄ）等の形状も含むことは言うまで
もない。Supports used in the present invention include polystyrene film, cellulose triacetate film, cellulose diacetate film, butyl cellulose acetate film, polyethylene terephthalate film, cellulose nitrate film, polycarbonate film, vinyl chloride film,
There are synthetic papers, thermoplastic resin-coated papers, etc. The contents of the present invention will be explained in detail below based on the drawings. FIG. 1 shows a web in which both the side cross-sectional shape and the planar shape are linearly inclined, which is particularly preferred in the present invention. A preferable side cross-sectional shape of the web is such that the inclination angle α is 90 degrees or less with respect to the web surface on the winding core side, preferably 10 to 80 degrees, particularly preferably 20 to 50 degrees, as shown in FIG. 2(a). Alternatively, as shown in FIG. 3, the angle is 90 degrees or more, preferably 100 to 170 degrees, particularly preferably 130 to 160 degrees. Less than 10 degrees or 70
If the temperature exceeds 80 to 100 degrees, it becomes difficult to manufacture, and in the range of 80 to 100 degrees, reflection and pressure fog tend to occur. It goes without saying that the present invention includes shapes such as those shown in FIGS. 2(b) to 2(d).
【０００９】ウェブ先端部切辺の平面形状は図４（ａ）
ないし（ｂ）のように９０度以下の直線状に傾斜した角
度のものが圧力カブリ防止、製造適性の点から好ましい
が、幅（直角の最短長さ）より長ければ効果があり各種
の平面形状が可能である。代表的な平面形状を以下に示
すが本発明はこれらに限定されるものではない。図５（
ａ）ないし（ｂ）は円弧状の例、図５（Ｃ）なしい（Ｄ
）は先端部切辺の中央部に角状の凹凸を有する例、図５
（Ｅ）ないし（Ｆ）は先端部切辺の形状が中央部と両端
部が異なる例である。これらのウェブ先端部切辺の平面
形状の中で特に好ましいのは図４（ａ）ないし、４（ｂ
）で直線状の傾斜角度βが９０度以下、好ましくは３０
〜８０度のウェブ先端部切辺の平面形状を有するウェブ
である。ウェブ先端部切辺の平面形状としてさらに図６
（ａ）ないし（ｄ）に示す、鋭角の先端を複数有する言
わゆる鋸歯状の例や図７（ａ）ないし（Ｃ）に示す。小
さい複数の円弧状先端を有する例等も好ましく用いるこ
とが出来る。上記のような、支持体の先端の厚みが漸次
低減している側断面形状のウェブや支持体の先端の厚み
が漸次低減している側断面形状とし、先端部切辺を幅よ
りも長くなるような平面形状のウェブを用いることによ
り従来の段差面に集中していた外力を傾斜した側断面又
は傾斜した側断面とウェブの幅よりも長い先端部切辺に
分散することにより、段差面に起因する「映り」や「圧
力カブリ」及び「シワ」、「筋」等の故障を防止してい
る。The planar shape of the cutting edge of the web tip is shown in FIG. 4(a).
It is preferable to have a linearly inclined angle of 90 degrees or less as shown in (b) from the viewpoint of preventing pressure fog and suitability for manufacturing. is possible. Typical planar shapes are shown below, but the present invention is not limited thereto. Figure 5 (
a) to (b) are examples of arcuate shapes, Fig. 5(C) and (D
) is an example in which there is an angular unevenness in the center of the cutting edge of the tip, Fig. 5
(E) to (F) are examples in which the shape of the cutting edge of the tip is different at the center and at both ends. Among these plane shapes of the cutting edge of the web tip, particularly preferred are those shown in FIGS. 4(a) to 4(b).
), the linear inclination angle β is 90 degrees or less, preferably 30
The web has a planar shape with a cutting edge of the web tip of ~80 degrees. Figure 6 further shows the planar shape of the cutting edge of the web tip.
Examples of so-called sawtooth shapes having a plurality of acute-angled tips are shown in FIGS. 7A to 7D, and FIGS. 7A to 7C show examples. An example having a plurality of small arcuate tips can also be preferably used. As shown above, the web has a side cross-sectional shape in which the thickness of the tip of the support body gradually decreases, or the side cross-sectional shape of the support body has a side cross-sectional shape in which the thickness of the tip of the support body gradually decreases, and the cutting edge of the tip part is longer than the width. By using a web with a planar shape such as This prevents malfunctions such as "reflection", "pressure fog", "wrinkles", and "streaks" caused by the film.
【００１０】本発明の効果を更に一層明確にするために
、具体的実施例によって説明するが本発明はこれらに限
定されるものでなく特許請求の範囲に記載された内容の
範囲で各種の態様を取ることができるのは言うまでもな
い。厚さ１３５μｍの三酢酸セルロースウェブに映画用
カラーポジ写真感光乳剤を均一に塗布した。この映画用
カラーポジ写真フィルムのウェブの先端形状を下記のよ
うに変更して、幅１１０ｃｍ、長さ４００ｍのウェブを
巻き取りテンション７０ｋｇ／ｍ幅の条件で直径４０ｃ
ｍの合成樹脂製の巻芯に巻き取った。この時の圧力カブ
リを現像処理後透過光で目視観察により濃度が他の部分
より線状に濃くなった（映画用カラーポジ写真フィルム
として用いることができない品質）部分の周期を調査し
、何周目まで発生したか評価。（値が小さい程圧力カブ
リの発生が少ないことを示す。）[0010] In order to further clarify the effects of the present invention, the present invention will be explained by specific examples, but the present invention is not limited to these examples, and various embodiments can be made within the scope of the claims. Needless to say, you can take it. A motion picture color positive photographic emulsion was uniformly applied to a cellulose triacetate web having a thickness of 135 μm. The tip shape of the web of this movie color positive photographic film was changed as shown below, and a web with a width of 110 cm and a length of 400 m was wound with a diameter of 40 cm at a tension of 70 kg/m width.
It was wound up on a core made of synthetic resin. The pressure fog at this time was visually observed using transmitted light after the development process, and the cycle of the part where the density became linearly higher than other parts (a quality that cannot be used as a color positive photographic film for movies) was investigated, and the number of cycles was determined. Evaluate whether this has occurred. (The smaller the value, the less pressure fog occurs.)
【００１１】これらの特性を比較した結果を表１に示す
。Table 1 shows the results of comparing these characteristics.
【００１２】0012
【表１】[Table 1]
【００１３】[0013]
【発明の効果】本発明は以上のように、少なくともウェ
ブの先端の厚みが漸次低減している側断面形状としたウ
ェブ、好ましくは支持体の先端の厚みが漸次低減してい
る側断面形状とし、先端部切辺を幅よりも長くなるよう
な平面形状としたウェブとすることにより、安価に、作
業性良く巻き始めのウェブ先端に加わる力を傾斜面全体
に分散することにより、ウェブを巻き重ねてもその厚み
に起因した段差による「映り」や「圧力カブリ」がほと
んど発生しない。Effects of the Invention As described above, the present invention provides a web having a side cross-sectional shape in which the thickness at least at the tip of the web gradually decreases, preferably a side cross-sectional shape in which the thickness at the tip of the support body gradually decreases. By creating a web with a planar shape in which the cutting edge of the tip is longer than the width, the web can be wound at low cost and with good workability by dispersing the force applied to the web tip at the beginning of winding over the entire inclined surface. Even when stacked, there is almost no "reflection" or "pressure fog" caused by the difference in level due to the thickness.
【００１４】[0014]
【図１】本発明の実施例の代表的なウェブの先端形状を
示す斜視図である。FIG. 1 is a perspective view showing a typical web tip shape according to an embodiment of the present invention.
【図２】本発明のウェブの先端形状を示す側断面図であ
る。FIG. 2 is a side cross-sectional view showing the shape of the tip of the web of the present invention.
【図３】本発明のウェブの先端形状を示す側断図である
。FIG. 3 is a side sectional view showing the shape of the tip of the web of the present invention.
【図４】本発明のウェブ先端部切辺が直線状であるウェ
ブを示す平面図である。FIG. 4 is a plan view showing a web having a straight cutting edge at the leading end of the web according to the present invention.
【図５】本発明のウェブ先端部切辺が直線状でないウェ
ブを示す平面図である。図５（ａ）はウェブ先端部切辺
が円弧状であるウェブを示す平面図である。FIG. 5 is a plan view showing a web having a non-linear cutting edge at the leading end of the web according to the present invention. FIG. 5(a) is a plan view showing a web having an arcuate cutting edge at the leading end of the web.
【図６】本発明のウェブ先端部切辺が鋸歯状であるウェ
ブを示す平面図である。FIG. 6 is a plan view showing a web having a serrated edge at the leading end of the web according to the present invention.
【図７】本発明のウェブ先端部切辺が複数の円弧状であ
るウェブを示す平面図である。FIG. 7 is a plan view showing a web having a plurality of arcuate cutting edges at the leading end of the web according to the present invention.
【図８】従来のウェブの先端形状を示す側断面図である
。FIG. 8 is a side sectional view showing the tip shape of a conventional web.
【図９】従来のウェブの先端部切辺を示す平面図である
。FIG. 9 is a plan view showing the cutting edge of the leading end of a conventional web.
【図１０】従来の映りや圧力カブリをなくすために段差
状切欠き部を形成した巻き芯の断面図である。FIG. 10 is a sectional view of a winding core in which a step-like notch is formed to eliminate conventional reflection and pressure fog.
【図１１】本発明のウェブを巻き芯に巻き重ねた断面図
である。FIG. 11 is a cross-sectional view of the web of the present invention wound around a winding core.
【図１２】従来のウェブを巻き芯に巻き重ねた断面図で
ある。FIG. 12 is a cross-sectional view of a conventional web wound around a winding core.
１……ウェブ先端 ２……線状の折れ跡（映り） ３……ウェブ ４……巻き芯 ５……巻き芯外周面 ｔ……ウェブ先端の厚み ６……段差状切部 ７……切欠部の先端部 1... Web tip 2... Linear crease mark (reflection) 3...Web 4... Winding core 5... Winding core outer peripheral surface t...Thickness of the tip of the web 6...Step-like cut 7...Tip of notch
Claims (4)
る側断面形状としたことを特徴とする感光材料用支持体
。1. A support for a photosensitive material, characterized in that the support has a side cross-sectional shape in which the thickness at the tip of the support gradually decreases.
る側断面形状とし、先端部切辺を幅よりも長くなるよう
な平面形状としたことを特徴とする感光材料用支持体。2. A support for a photosensitive material, characterized in that the tip of the support has a side cross-sectional shape in which the thickness gradually decreases, and a planar shape such that the cutting edge of the tip is longer than the width.
るような平面形状としたことを特徴とする請求項２記載
の感光材料用支持体。3. The support for a photosensitive material according to claim 2, wherein the cutting edge of the tip of the support has a planar shape that is linearly inclined.
状としたことを特徴とする請求項２記載の感光材料用支
持体。4. The support for a photosensitive material according to claim 2, wherein the cutting edge of the tip of the support has an arcuate planar shape.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3022265A JPH04260576A (en) | 1991-02-15 | 1991-02-15 | Supporter for photosensitive material |
| DE69230572T DE69230572T2 (en) | 1991-02-15 | 1992-02-14 | Spool core for photosensitive material and photographic film roll |
| US07/835,585 US5286614A (en) | 1991-02-15 | 1992-02-14 | Substrate of and core for photosensitive material |
| EP92102508A EP0499981B1 (en) | 1991-02-15 | 1992-02-14 | Core for photosensitive material and roll of photographic film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3022265A JPH04260576A (en) | 1991-02-15 | 1991-02-15 | Supporter for photosensitive material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04260576A true JPH04260576A (en) | 1992-09-16 |
Family
ID=12077941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3022265A Pending JPH04260576A (en) | 1991-02-15 | 1991-02-15 | Supporter for photosensitive material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04260576A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014234272A (en) * | 2013-06-04 | 2014-12-15 | 三菱樹脂株式会社 | Film roll |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01104596A (en) * | 1987-10-13 | 1989-04-21 | Kayaba Ind Co Ltd | Auto-tensioner device |
-
1991
- 1991-02-15 JP JP3022265A patent/JPH04260576A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01104596A (en) * | 1987-10-13 | 1989-04-21 | Kayaba Ind Co Ltd | Auto-tensioner device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014234272A (en) * | 2013-06-04 | 2014-12-15 | 三菱樹脂株式会社 | Film roll |
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