公开(公告)号：DE4104005A1

公开(公告)日：1992-08-13

申请号：DE4104005

申请日：1991-02-09

Applicant: BASF AG

Inventor： KURTZ KARL-RUDOLF DR ,  KEPPELER UWE DR ,  KOCH HORST DR ,  TELSER THOMAS DR

IPC: C09J175/14 ,  G03F7/11

公开(公告)号：DE3867869D1

公开(公告)日：1992-03-05

申请号：DE3867869

申请日：1988-02-06

Applicant: BASF AG

Inventor： KOCH HORST DR ,  BACH HELMUT DR ,  JAECKEL KLAUS-PETER DR

IPC: G03F7/26 ,  G03F7/00 ,  G03F7/095 ,  G03F7/18 ,  G03F7/38

Abstract: A printing cylinder or sleeve is coated with an endless light-sensitive copying film by coating the cylinder or sleeve with a first layer of light-sensitive copying film and giving this an overall pre-exposure with actinic light, then applying a second film, with exclusion of air between the 2 layers. The film is a solid, thermoplastic, photopolymerisable copying film and both layers pref. have the same compsn.. The first layer comprises ca. 35-70% of the total thickness.

公开(公告)号：DE3678632D1

公开(公告)日：1991-05-16

申请号：DE3678632

申请日：1986-06-19

Applicant: BASF AG

Inventor： KOCH HORST DR ,  JAECKEL KLAUS-PETER DR

IPC: G03F7/20 ,  G03F7/00 ,  G03F7/40

Abstract: Non-tacky, smooth, structureless surfaces of photopolymer relief printing plates for flexographic printing, whose relief layers are prepared in a conventional manner by exposing the photopolymerizable relief-forming layers of flexographic printing plates imagewise to actinic light and washing out the unpolymerized, unexposed areas with a suitable solvent, are produced by a process in which the flexographic printing plates are after-treated with a liquid medium which contains elemental bromine or is capable of forming elemental bromine, and then washed with a neutralization bath, one or more paraffinsulfonates, fatty alcohol ethersulfates or alkyl phosphates or a cationic or anionic surfactant possessing one or more perfluorinated carbon chains being employed in the bromine-containing, liquid medium. The relief printing plates obtained according to the invention are used for flexographic printing.

公开(公告)号：DE58904926D1

公开(公告)日：1993-08-26

申请号：DE58904926

申请日：1989-02-23

Applicant: BASF AG

Inventor： SCHWALM REINHOLD DR ,  KOCH HORST DR

IPC: G03F7/038 ,  C08F20/52 ,  C08F26/00 ,  C08F28/00 ,  C08F30/02 ,  C08F30/08 ,  C08F220/04 ,  C08F220/60 ,  C08F226/06 ,  C08F228/00 ,  C08F230/02 ,  C08F230/08 ,  G03F7/075 ,  G03F7/26

公开(公告)号：DE4107378A1

公开(公告)日：1992-09-10

申请号：DE4107378

申请日：1991-03-08

Applicant: BASF AG

Inventor： LITTMANN DIETER DR ,  KOCH HORST DR ,  HOFFMANN WALTER

IPC: G03F1/00

Abstract: Masks consisting of (A) an optically transparent support film 10-500 micro-m thick, (B) an image mask layer 0.01-1 micro-m thick with optically transparent non-image regions and image regions of higher optical density obtd. by imagewise application of a 0.01 - 1 micro-m thick energy absorbing layer contg. a finely dispersed material of high optical density or an energy absorbing layer made of this, or by removing the non-image regions from this layer or by transferring the image regions to the support film (A), and (C) a 0.01 - 5 micro-m thick, non-tacky, optically transparent protective layer adhered strongly to the mask layer (B), consisting of a polymer which forms films with high tensile strength and 0.1-10 wt.% w.r.t. (C) of an optically transparent matting agent with a mean particle size of 0.1-10 micro-m. USE/ADVANTAGE - The copying masks can be used repeatedly in close contact with positive- or negative working photosensitive layers without deterioration of the mask by migration of low mol. components from the photosensitive material into the mask. This is an improvememnt over earlier systems in which a protective layer was applied over the photosensitive layer, which caused a redn. in resolution of the image during exposure. The masks are useful e.g. in the prodn. of printing plates, screen printing plates and photoresists e.g. for printed circuit

公开(公告)号：DE3904780A1

公开(公告)日：1990-08-23

申请号：DE3904780

申请日：1989-02-17

Applicant: BASF AG

Inventor： LITTMANN DIETER DR ,  KOCH HORST DR

IPC: G03F7/00 ,  G03F7/038 ,  G03F7/40

Abstract: Process for the production of a relief printing plate whose photopolymerised relief layer has a nontacky surface by (1) exposing, through an image, a photopolymerisable relief-forming recording layer which contains at least one polymeric binder containing acid groups, (2) washing out (developing) the unexposed, and therefore unphotopolymerised regions of the relief-forming recording layer exposed through an image with a developer solvent, and (3) posttreatment of the resultant photopolymerised relief layer with a basic posttreatment solution.

公开(公告)号：DE3807929A1

公开(公告)日：1989-09-28

申请号：DE3807929

申请日：1988-03-10

Applicant: BASF AG

Inventor： TELSER THOMAS DR ,  KOCH HORST DR ,  KURTZ KARL-RUDOLF DR ,  BACH HELMUT DR ,  WERTHER HEINZ-ULRICH DR

IPC: G03F7/00 ,  G03F7/32

Abstract: The invention relates to a process for the production of relief formes. After exposing layers which can be crosslinked by photopolymerisation to actinic light through an image, the uncrosslinked portions of the layers are washed out with hydrocarbon solvents or mixtures of hydrocarbon solvents and alcohols, certain hydrogenated petroleum fractions being used as hydrocarbon solvents. The process is suitable, in particular, for the production of flexographic printing formes.

公开(公告)号：DE3704694A1

公开(公告)日：1988-08-25

申请号：DE3704694

申请日：1987-02-14

Applicant: BASF AG

Inventor： KOCH HORST DR ,  BACH HELMUT DR ,  JAECKEL KLAUS-PETER DR

IPC: G03F7/26 ,  G03F7/00 ,  G03F7/095 ,  G03F7/18 ,  G03F7/38 ,  G03F7/02 ,  B29C63/06

Abstract: A printing cylinder or a sleeve is coated with a continuous photosensitive recording layer by applying a first jointless stratum of a photosensitive recording layer to the printing cylinder or the sleeve, and uniformly preexposing this first stratum to actinic light and thereafter applying one or more further jointless strata of the photosensitive recording layer to this preexposed first stratum.

公开(公告)号：DE3521955A1

公开(公告)日：1987-01-02

申请号：DE3521955

申请日：1985-06-20

Applicant: BASF AG

Inventor： KOCH HORST DR ,  JAECKEL KLAUS-PETER DR

IPC: G03F7/20 ,  G03F7/00 ,  G03F7/40 ,  G03F7/10

Abstract: Non-tacky, smooth, structureless surfaces of photopolymer relief printing plates for flexographic printing, whose relief layers are prepared in a conventional manner by exposing the photopolymerizable relief-forming layers of flexographic printing plates imagewise to actinic light and washing out the unpolymerized, unexposed areas with a suitable solvent, are produced by a process in which the flexographic printing plates are after-treated with a liquid medium which contains elemental bromine or is capable of forming elemental bromine, and then washed with a neutralization bath, one or more paraffinsulfonates, fatty alcohol ethersulfates or alkyl phosphates or a cationic or anionic surfactant possessing one or more perfluorinated carbon chains being employed in the bromine-containing, liquid medium. The relief printing plates obtained according to the invention are used for flexographic printing.

公开(公告)号：DE58908989D1

公开(公告)日：1995-03-23

申请号：DE58908989

申请日：1989-03-03

Applicant: BASF AG

Inventor： TELSER THOMAS DR ,  KOCH HORST DR ,  KURTZ KARL-RUDOLF DR ,  BACH HELMUT DR ,  WERTHER HEINZ-ULRICH DR

IPC: G03F7/00 ,  G03F7/32

Abstract: The invention relates to a process for the production of relief formes. After exposing layers which can be crosslinked by photopolymerisation to actinic light through an image, the uncrosslinked portions of the layers are washed out with hydrocarbon solvents or mixtures of hydrocarbon solvents and alcohols, certain hydrogenated petroleum fractions being used as hydrocarbon solvents. The process is suitable, in particular, for the production of flexographic printing formes.