摘要:
A method for heat treating a rolled polyester support at a temperature lower than the glass transition temperature (Tg) is disclosed, wherein the polyester film is wound around a core to have a difference in roll diameter of 10% or less and then heat treated to render the film surface smooth. Further disclosed are a photographic polyester support which is subjected to heat treatment according to the above-described method, a silver halide photographic material which uses the above-described polyester support and a polyester support having a creak value of from 10 to 600 g.
摘要:
A method for dyeing a photographic polyester support is disclosed, comprising the use of transparent pellets and a dye granulated so as to satisfy the requirements that: (1) the particle size is 50% or more; (2) the angle of repose is 60.degree. or less; and (3) the particle hardness is from 160 to 400 g on average and has a lower limit of 50 g.
摘要:
A photographic material comprising a polyester support and an undercoat and/or backcoat layer applied thereto is treated with an alkaline aqueous solution of sodium hydroxide and/or potassium hydroxide. The polyester support can be recovered for reuse without quality degradation like foreign matter contamination and transmittance losses.
摘要:
A polyester support prepared by the step of subjecting a polyester film to bulk rolling and heating the bulk rolled polyester film to a temperature of from 50.degree. C. to the glass transition point of said polyester film, or subjecting a polyester film to bulk rolling at a temperature of from 50.degree. C. to the glass transition point of said polyester film, resulting in the polyester support, wherein the glass transition point of said polyester film is 90.degree. to 200.degree. C., and wherein the step of bulk rolling has a start tension of 3 to 75 kg/m per unit width of the polyester film and an end tension of 3 to 75 kg/m per unit width of the polyester film.
摘要翻译:一种聚酯支撑体,其特征在于,将聚酯薄膜体积轧制并将本体转动的聚酯薄膜加热至所述聚酯薄膜的玻璃化转变温度至50℃,或者使聚酯薄膜在 温度为50℃至所述聚酯膜的玻璃化转变点,得到聚酯载体,其中所述聚酯膜的玻璃化转变温度为90〜200℃,其中,本体轧制工序为 聚酯薄膜的单位宽度为3〜75kg / m 3的起始张力,聚酯薄膜的单位宽度为3〜75kg / m 3的终止张力。
摘要:
There is disclosed a method of manufacturing a photographic polyester film, comprising forming an unstretched film controlling; each of the temperature of the inlet of a melt extruder, at a temperature in the range from "the melting point of the polymer (Tm)"-10.degree. C. to the Tm+15.degree. C.; the temperature of the central part of a screw, at a temperature in the range from the Tm to the Tm+30.degree. C.; and the temperature of the outlet thereof, at a temperature in the range from the Tm+10.degree. C. to the Tm+35.degree. C., followed by biaxial stretching and heat-setting, and a photographic support manufactured by the method. The thus obtained photographic polyester support excels in photographic properties, adhesiveness, and mechanical strength, and that moreover hardly causes a core set curl and fog formation.
摘要:
A continuous silver halide photographic sheet comprises a continuous support which has Young's modulus of 450 to 650 kg/mm.sup.2 in both of its length and width directions and has a knurled area in the form of a belt on each side, at least one subbing layer formed on the support; and at least one silver halide emulsion coated on the subbing layer not only in an area between both knurled areas but also in the knurled areas under the condition that each of the knurled areas has an area in the form of a belt having emulsion coating which has a width of 5 to 95% of the width of the belt of knurled area. Further, a process for preparing the continuous silver halide photographic sheet comprises the steps of forming at least one subbing layer on the support, and coating at least one silver halide emulsion on the subbing layer in the areas described above.
摘要翻译:连续的卤化银照相片包括在长度和宽度方向上具有450至650kg / mm 2的杨氏模量的连续支撑件,并且在每侧具有带状形状的滚花区域,形成至少一个底层 支持; 以及至少一种卤化银乳剂,其不仅在两个滚花区域之间的区域中而且在滚花区域中都涂覆在底层上,在每个滚花区域具有具有乳液涂层形式的带的区域, 宽度为滚花区域宽度的5〜95%。 此外,制备连续卤化银照相片的方法包括以下步骤:在载体上形成至少一个底层,并在上述区域中的底层上涂覆至少一种卤化银乳剂。
摘要:
A method of producing a photographic polyester laminate support having a laminate of layers of at least two kinds of polyesters can provide low formation of scratches in a camera and a curl in the film's width direction. In the support, the glass transition temperature (Tg) of each polyester of the laminate is within the range of from 90.degree. C. to 200.degree. C. and the laminate is subjected to heat-fixing in a temperature range as defined by formula (1):Heat-fixing temperature (.degree.C.)=(Tm(L)-50) to (Tm(H)-10)formula (1)wherein Tm(H)(.degree.C.) means the highest melting temperature of polyesters that constitute the laminate support, and Tm(L)(.degree.C.) means the lowest melting temperature of polyesters that constitute the laminate support.
摘要:
Disclosed is a silver halide photographic material provided with at least one silver halide emulsion layer on a support and wound in a roll form, wherein the above support is subjected to a heat treatment until a heat amount in an endothermic peak which appears including a glass transition temperature becomes 100 to 1,000 mcal/g, and the support is of biaxially oriented polyester having a loss elastic modulus of 0.01 to 0.1, the glass transition temperature of 50.degree. to 200.degree. C., a Young's modulus of 530 to 2,000 kg/mm.sup.2, a breaking elongation of 60 to 200%, and a ratio of the refraction indexes in a film face direction and a thickness direction of 1.10 to 1.22.
摘要翻译:公开了一种卤化银照相材料,其在载体上设置有至少一个卤化银乳剂层并以卷状卷绕,其中上述载体经受热处理,直到出现的吸热峰中的热量包括玻璃化转变 温度为100〜1000mcal / g,载体为损耗弹性模量为0.01〜0.1,玻璃化转变温度为50〜200℃,杨氏模量为530〜2000kg / mm 2的双轴取向聚酯 ,断裂伸长率为60〜200%,膜面方向和厚度方向的折射率的比率为1.10〜1.22。
摘要:
A casting film (24) is formed by casting a cellulose acylate solution (16) onto a cold drum (22) continuously running. The cellulose acylate solution (16) contains at most 0.01% of a compound which is extracted to a liquid incompatible with the water in a mixture of the water and the liquid. That is, at most 50 mg of the compound is contained in 100 g of cellulose acylate. In the cellulose acylate solution (16), a concentration C1 of Ca is at most 100 ppm, a proportion of the C1 to a concentration C2 of sulfuric acid satisfies the following formula: 0.5≦C1/C2≦1.5, and a concentration of Mg is in the range of 5 ppm to 50 ppm. Thereby, contamination of the surface of the cold drum (22) is prevented.
摘要:
A silver halide photographic material comprising a polyester support having formed thereon at least one light-sensitive silver halide emulsion layer is disclosed, said polyester support having a glass transition temperature of from 90.degree. to 200.degree. C. and having had at least one side thereof subjected to ultraviolet-light irradiation. The photographic material exhibits improved anticurl properties and high adhesion between the emulsion layer and the support.