DE6812946U - PRINTED WALLPAPER - Google Patents

Description

DR. WALTER NIELSCH Potent attorney

2 Hamburg 70 17.

SdtloBifraße 112 · P.O. Box 10914 Tel: 652 97 07

Walter Dönselmar.n KG, 2 Hamburg 5 ^> Arminiusstrasse 2-4

Printed wallpaper bans

It is known to use Rauhfasertapeben after gluing to the Wall with a roller or other application device a coating based on pigment and synthetic resin dispersion to provide.

The amount of work involved in producing these wallpapers, which have already been glued to the wall and then coated, is relative large and in addition it is not possible to use the well-known wallpaper patterns, which are usually produced by printing, hie.oei to obtain.

If you try wallpaper printing inks based on synthetic resin dispersions to use for the production of printed wallpaper strips, so erg.i rb that the printed coating on the basis of synthetic resin binder and pigment does not have sufficient water resistance during subsequent processing un'i blocking by gluing during production the coated synthetic resin-containing coating with the Backing wallpaper web enters when rolling »

The task of the present innovation is now, eir-3 printed Tipetenbahr! with t. ^ ner coating applied by pruck ""; . "I" itr based PiguK nt synthetic resin dispersion is available too

- 2 -
pose that does not have these known disadvantages.

The object is achieved in that the wallpaper web has a pigment-containing coating obtained by printing, for example in the order of magnitude of 20 - 100 g / m² total solids, with the coating being a combination of organic Contains binder and organic leveling agent and obtained by printing on an aqueous wallpaper printing ink has been used as a synthetic resin binder by emulsion copolymerization Synthetic resin dispersion obtained on the basis of copolymerized monomers such as styrene, alkyl esters of Acrylic acid, the alkyl radicals having 4 to 8 carbon atoms and containing acrylic acid or methacrylic acid and the leveling agent is a copolymer containing carbuxyl groups is.

In the preferred embodiment, the synthetic resin binder of an emulsion copolymer on the basis of about 45 - 50% by weight of butyl acrylate, 40 -. 50 percent, # Sty. Oil and 2-10 wt. % Acrylic acid and / or methacrylic acid built up % arranged in the pigment-containing coating.

A special, very preferred embodiment contains as Synthetic resin binder an emulsion copolymers based on about

50-52 wt. # Of butyl acrylate
45 + 1 wt % styrene
3-4 wt.># Acrylic acid and / or methacrylic acid

The effect of the water-dispersed synthetic resin binder, which is not soluble in water, can be further improved as a result that another organic, but water-soluble or water-swellable binder also contain is, for example, a medium viscosity carboxymethyl cellulose. This additional binder is about in batches of

15- ^ 0 wt., #, Preferably about 20-50 wt. ^, Based on that Weight of resin binder included.

The leveling agent contained in the combination also acts as a pigment dispenser and is a copolymer containing carboxyl groups, its water-soluble salts obtained by combining with alkalis, ammonia and strong alkaline amines will. In the inkjet printing inks there are those containing carboxyl groups Contain copolymers in the water-soluble form, so that their effect comes into its own. These contain carboxyl groups Copolymers can be based on acrylic acid and acrylic acid alkyl esters, vinyl acetate and crotonic acid or maleic anhydride and styrene or maleic acid and styrene.

A typical coating contains about: 80-96 wt. # Inorganic pigments on the wallpaper roll 3-6 wt. # Synthetic resin binder based on a

Emulsion polymer of the type already explained

0j5 - 2 wt. # Other organic water-soluble or

water-swellable binder (medium-viscosity carboxymethyl cellulose)

0.2-2 Gev _# # Leveling agent of the type already explained

(copolymer containing carboxyl groups)

Here are the above-mentioned components of the coating chosen so that these together add up to 100 wt. # each.

The wallpaper colors composed in this way are characterized by their wash resistance. Will the larger proportions of synthetic resin binder If used, the coating is available as a $ 100 washable tape web.

iifil ^r; 94

The printing coated wallpaper sheet having high water resistance can be obtained as follows; Customary strips of paper wallpaper with weights of 60-150 g / m ^{2 can} serve as the carrier material.

The wallpaper printing inks used here are aqueous approaches that have approximately the following composition:

Printing ink Chalk / Fond Chalk medium viscosity carboxymethyl cellulose Wasr r Omy a-Indus triekre ide Kaolin

The type marked emulsion polymer, 50 wt.% Solids content, film forming temperature of about 16 C
Defoamer
ammonia
Leveling agent of the type indicated

Squeeze putty

+ 10 kg of medium viscosity carboxymethyl cellulose

+ 90 kg v / ater

White base CaIcit Durcalcit

with low viscosity carboxymethyl cellulose 5% solution emulsion polymer of the type marked 50 Gev, # solids content, film formation temperature

16 ° C Sc " ¹ vent-Naphta leveling agent of the marked type water

10 kg 390 kg 700 kg 200 kg 80 kg 4- kg 3 kg 10 kg

80 kg 80 kg 40 kg 10 kg 1 kg 1 kg 50 kg

■ 4 χ; · ['' .., "■ y. '■ ι

Imprint v e IJB

Medium viscosity carboxymethyl cellulose 5 # solution 50 kg emulsion polymer of the type indicated
50 wt.% Feststoffgefcult, film forming temperature

about 16 ° C 8 kg

Leveling agent of the marked type 0.5 kg

Spec. White 35 kg

Durcal ^ it 50 kg

Titanium dioxide 10 kg

Water 60 kg

Defoamer 0.5 kg

Ammonia 0.2 kg

The recipe for the squeeze putty is derived from the chalk printing ink by adding the substances mentioned. The base color "chalk" is made to the required viscosity by diluting it with water. Likewise, all other colors should still be used to achieve a good print image
be diluted a little. Defoamer is added as required. In the case of dark stocks, it is sometimes advisable to add more gradient oil.

Durcalcit is a light Jurassic chalk; The anatase type can be used as titanium dioxide «The Special type White is a white China-day.

The recipes given relate to washable wallpaper paints. To increase the water resistance, the amount of emulsion polymer can be increased by 25-50 $, whereby you can get up to 100 # washable wallpaper.

The printing blankets are to be removed during work breaks that are longer than an hour and washed out with water. The color itself is in the form of the above durable about 3 days *, t oll a better storage stability can be obtained, so the use of fungicides is required,

i ■ · '. J ^ l

The paper wallpaper strips can be printed as follows:

The correspondingly scuffed paint is applied to the paper web applied by machine with the help of an applicator roller and. equalized by an air brush or by brush sets. All machines used in paper coating can be used as application machines. Instead of an air brush or a set of brushes, distribution by rollers or squeegees can also be achieved.

If the coating should have a pattern, this can be obtained as follows:

After production and completion of the foundation, the has been freed of water and other volatile constituents by drying in a drying tunnel, is done with the aid of wooden rollers, which have been provided with a pattern by placing brass and felt stamps, or with the help of with rubber rollers or with steel rollers, in which a primer has been created by etching, the ready-mixed color is applied on a wallpaper printing machine. Here, too, drying is carried out in an infrared or otherwise heated channel after printing.

Example for the production of the coated wallpaper strip according to the present innovation:

The color is adjusted as a base color by diluting it with water. Pigments are then added to them and the paint is rubbed into the paint trough. From here she will be with a Application roller applied to the continuous paper web, which with the help of further rollers (transport rollers) on the Application roller is passed. The coating is applied with an air brush at a speed of about 100 m per Minute equalized. The excess goes into the paint trough

681294

/ i)

«· Π -m

returned. The coated paper web is then. in a duct heated with warm air at approx. 65 C, in which the paint is freed from water and other volatile solvents. The one coated with the dry paint Paper web is rolled up. It can be provided with an imprint in a similar manner with the aid of pattern rollers; It is possible to apply several different colored samples per application.

The wallpaper strip coated according to the innovation is illustrated by the drawing:

Figure 1 shows a printed wallpaper web with a coating according to the present innovation, the coating the number 1 and the paper carrier the number 2.

i \ -., ' i ν

Claims (7)

- 8 -DR. WALTERNIELSCH Patent attorney 1 7 Πρ7 IQRQ 2 Hamburg 70 'I Λ UBZ. IJH) B ildilossstrafle 112. P.O. Box 10914 Telephone: 652 97 07 Protection claims; Wallpaper strip covered by printing with high water resistance, characterized in that the pigment-rich Coating is about 20 to 100 g / m² and the coating is a combination of organic binder and contains organic leveling agent, at least one film-forming synthetic resin being arranged as a binder, which is an emulsion copolymer based on copolymers Monomers such as styrene, alkyl esters of acrylic acid, the alkyl radicals having 4 to 8 carbon atoms and Acrylic acid or methacrylic acid is and there? Leveling agent a carboxyl group-containing copolymer j is. 2.) Wallpaper strip according to claim 1, characterized in that an emulsion is used as a synthetic resin binder in the coating copolymer based on 45 - 50 wt. # of butyl acrylate, 40-50 wt. # Styrene and 2 to 10 wt. # Acrylic acid and / or methacrylic acid is included. 3.) wallpaper strip according to claim 2, characterized in that the synthetic resin binder contained in the coating an emulsion copolymer based on 50-52 wt. # Butyl acrylate, 45 + 1 wt., # Styrene, 3-4 wt. # Acrylic acid and / or methacrylic acid. 4,) wallpaper strip according to one of claims 1 - 3> characterized in that the leveling agent contained is a carboxyl group-containing copolymer on d ,. ¹ ^ sis acrylic acid and alkyl acrylate, vinyl acetate and crotonic acid or maleic anhydride and styrene or maleic acid and styrene is » 5.) Wallpaper strip according to one or more of claims 1-4, characterized in that the coating is additionally contains another water-soluble or water-swellable binder. 6.) Wallpaper strip according to claim 5 »characterized in that the coating is approximately:
80 - 96 Gevii ^ j inorganic pigments _i 3-6 wt. # Synthetic resin binder based on a Emulsion polymer, 0.5-2 wt. # Other organic water-soluble or water-swellable binder, 0.2-2 wt.% flow control agent
contains, 7. ^N wallpaper sheet according to one or more of claims 1-6, characterized in that the carrier material consists of conventional paper wallpaper sheet with weights of 60-150 g / m.