The resulting dyed film exhibited a uniform charcoal colour. Highcombinationwithmultipleresin. In one method of performing the invention, an excess of dyestuff over that required for the desired degree of colouration is coated onto the film. The coated films were generally predried in the air oven at 93 C., although in some cases UV lamps were used. Only accept essential cookies. Some disperse dyestuffs are only available commercially in liquid form. Small improvement over 47. 08/643,063, filed Apr. CITIBANK, NA, NEW YORK, Free format text: Coloured polyester film prepared according to the method of the invention may be adhered to glass and suchlike materials, for example in the form of automobile windows or of flat glass such as is used in domestic and office windows. B2-20120091-4, Raw Material Price Index for Packaging & Printing. Average particle size is preferably less than about 1 micron. A further advantage of the present invention in comparison with solvent dyeing and solvent-assisted dyeing is that, because no swelling agent is required, and because such swelling agents are generally solvents for disperse dyestuffs, as a consequence less dye is washed out of the film in the washing step.

Examples of suitable dye-carriers are phenol, ortho- and paraphenylphenol, diphenyl, chlorinated benzenes and diphenyls, methyl salicylate, benzoic acid and benzyl alcohol. Such mixtures can be used to provide dyed films, for example solar control films of a grey or bronze colour. The dye is brought into contact with the film which is then heated to cause migration of the dye into the film. Similar to 29 with twice the depth, Very fine streaks. Technick uloen nebo pstup je nezbytn nutn pro legitimn el umonn pouit konkrtn sluby, kterou si odbratel nebo uivatel vslovn vydal, nebo pouze za elem proveden penosu sdlen prostednictvm st elektronickch komunikac. Reasonable quality, but light and dark bands. Sie knnen Ihre Auswahl jederzeit unter Einstellungen widerrufen oder anpassen. It is known that commercial liquid disperse dyes often contain a swelling agent, for example 10-25% or around 20% ethylene glycol or propylene glycol. The films were then passed through two five foot long ovens heated to 185 C. at 24 ft/min to effect thermosol fixation of the dyestuff from the coating layer into the polyester film. 1 part Dispersol Blue C-3R and 99 parts water were mixed to produce a dye mixture having a viscosity close to that of water (1 centipoise). Disperse Violet 57 liquid dyestuff, 75 parts by weight of the thickener described in Example 6, and 20 parts by weight IPA. Assigned to SOLUTIA INC., FLEXSYS AMERICA L.P., CPFILMS INC. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). The process of transfer of dye into the film may be referred to as fixation. The amount of harmful light reaching the sensitive dye is thereby reduced to a minimum. 7 8 10 12 15 19 23 36 50 75 100 125, Industrial production / Production of food packaging / Decorative applications, Production of food packaging / Decorative applications, 12 15 19 23 36 50 75 100 125 150, Production of food packaging / Special purposes and decoration purposes, The film is provided with chemical coating based on a polyester copolymer on one side, Production of food packaging, for metallization, inkjet printing and lamination / Suitable for long-term contact with dry, aqueous, acidic, alcoholic and fatty types of foodstuff, The film is corona treated on one side and provided with chemical coating on a polyester copolymer basis on the other side, The film is provided with an acrylate-based chemical coating on one side, Production of food and industrial packaging / For lamination, metallization and printing / Suitable for long-term contact with dry, aqueous, acidic, alcoholic and fatty types of foodstuff, The film is corona treated on one side and provided with an acrylate-based chemical coating on the other side, Production of food and industrial packaging / For lamination, metallization and printing, Production of packaging, suitable for long-term contact with dry, aqueous, acidic, alcoholic and fatty types of foodstuff, Technical applications, e.g. Coloured polyester films exhibiting an optical transmission of less than 20%, less than 10%, less than 5% or around 2 % at an absorption maximum of such a dyestuff component can be readily prepared. Preferred thickeners may exhibit a viscosity of 2 to 100 centipoise, more preferably 5 to 50 centipoise, measured on a 1% by weight solution of the thickener in water at ambient temperature. Nesouhlas nebo odvoln souhlasu me nepzniv ovlivnit urit vlastnosti a funkce.

Coloured BO PET films TENOLAN are designed for further processing especially by packaging technology. RELEASE OF ABL SECURITY INTEREST IN PATENTS - REEL/FRAME 022610/0495;ASSIGNOR:CITIBANK, N.A. This information helps us understand how our visitors use our website. Some of them are essential, while others help us improve this site and your experience. Jiangsu Shuangxing Color Plastic New Materials Co., Ltd. Shandong Focus Packing Materials Co., Ltd. Huizhou Yidu Stationery Supplies Co., Ltd. How to souce products on Alibaba.com effectively? License,Passports,Antigraffiti,Boardmaking,Writeon/wipeoffCalendars,Photographs,Albumsetc. Different dyestuffs may migrate at different rates. SHORT-FORM JUNIOR PATENT SECURITY AGREEMENT;ASSIGNOR:SOLUTIA INC.;REEL/FRAME:014683/0683, Owner name: The invention will now be illustrated with reference to the accompanying FIGURE, which is a schematic diagram of a process for producing a coloured polyester film according to the invention. A polyester film was coated by reverse gravure printing with a mixture containing 60 parts by weight C.I. This is specified as having a viscosity of 45-55 centipoise measured on a 4% aqueous solution at 20 C. Films were coated using Mayer rods or reverse offset or reverse gravure techniques. Preferably the second surface is metallised; that is, the opposite sides of the film are dyed and metallised. The dried film was heated at 180 C. for 30 seconds to cause migration of the dyestuff into the film, and washed with water. The maximum total solids content of the dye mixture by weight may be up to about 25% and is preferably 20%, more preferably 15%, further preferably 10%. The coated film was heated to dry the coating layer so formed. Slight evidence. The invention accordingly further provides a film laminate, said laminate containing at least one polyester film having a first and a second surface, said film being dyed with at least one disperse dyestuff, said dyestuff being substantially all present in a surface region adjacent said first surface, said film being laminated to a metallised polyester film. The ability to use relatively low fixation temperatures is an advantage of the invention. No. Technick uloen nebo pstup, kter se pouv vhradn pro statistick ely.

Coloured polyester films may be readily dyed conventionally with the same dyestuffs to obtain an optical transmission of 20%, and with more difficulty of 5%, but it may be necessary to laminate two or more films together to obtain low values of optical transmission. Banding could be avoided by proper control of the conditions. Personenbezogene Daten knnen verarbeitet werden (z. The gravure cylinder was driven at the same speed as the film web but in the opposite direction. In a further preferred embodiment, the first of said dyestuffs is an ultraviolet absorber and the second of said dyestuffs comprises one or more coloured disperse dyestuffs. 4.Onesidecoronatreatmentisavailable. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). SHORT-FORM JUNIOR PATENT SECURITY AGREEMENT;ASSIGNOR:CPFILMS INC.;REEL/FRAME:014718/0276, Free format text: The thickener is a water-soluble polymer. SKCs color-tinted film is a polyester film made by the chip-dyed processing method after color application to the transparent chip that is used as raw material for the film. This disadvantage can be overcome by the process of the present invention, since no swelling agent is required. A pre-treatment liquid containing dye-carrier is applied to the traveling web of the film and thereafter a hot aqueous dye-bath containing a disperse dye is applied to the web. Our color pet film including, black pet fim,blue pet film,pink pet film,yellow pet film. Polyester films are commonly coloured by dyeing with disperse dyes. A polyester film was coated by reverse gravure printing with a dispersion containing 25 parts by weight C.I.

The dye mixture may contain 5 to 50% by weight of the organic liquid, more preferably 5 to 40%, further preferably 10 to 25%. PET color film is made from Special color dyed chips.Can be used for electrical insulation,screen protection, industry adhesive tape, insulation tape,releasing pet film etc applications.

All these dyestuffs were obtained from Ciba-Geigy in the form of liquid dyestuffs containing approximately 40% solids and approximately 20% 1,2-propylene glycol. After the heating step, the exhausted layer comprises the thickener and any residual dyestuff which has not migrated into the film. The dye mixture preferably has a viscosity at ambient temperature of less than 200 centipoise, more preferably less than 100 centipoise, further preferably less than 50 centipoise. Film speed was equal to roll speed. The dye-carrier is a material which has a noticeable swelling action on the film and consequently accelerates dyeing so that, for example, dyeing can satisfactorily be carried out at a temperature in the range 80-100 C. with a dyeing time of about 1-3 hours. The gravure cylinder was driven in the opposite direction to the film web, but not necessarily at the same speed. This leads to non-uniformity of dyeing along the roll of film. The dry coating weight of the film, that is, the weight per unit area of the dried layer, is preferably in the range 0.1 to 2.0 grams per square meter. It was surprising to find that dye mixtures exhibiting low and very low viscosities could successfully be used according to the method of the invention to coat a uniform layer of dyestuff from an aqueous suspension onto a polyester film, which is hydrophobic.

Ultraviolet absorbers incorporated in such known more uniformly dyed films do not protect the sensitive dye in the surface of the film nearer to and exposed to the source of harmful radiation. 4,065,259 describes a process for exhaust dyeing of disperse dyeable synthetic polymers, for example polyester, for example in the form of film, fibre or fabric, utilising a dye dispersion which comprises a disperse dye and a normally liquid fluorocarbon, for example poly(perfluoropropylene glycol). Nevertheless, the amount of swelling agent present in the dye mixture and in the film, even when such commercial liquid disperse dyes are used, is very much less when the method of the present invention is used than in prior art solvent dyeing and solvent-assisted dyeing processes, perhaps by a factor of 20 or more.