DE397891C - Process for the production of patterned papers, cardboards, leather substitutes, linoleum substitutes, etc. - Google Patents

Description

GERMAN EMPIRE

ISSUED JUNE 30, 1924

R EIC H S PATENT OFFICE

PATENT LETTERING

CLASS 55 f GROUP 4

(K 84273 VIIl ₅₅ /)

Frederick Kaye in Manchester, Engl.

Process for the production of patterned papers, cardboard, leather substitutes,

Linoleum substitute, etc.

Patented in the German Empire on December 15, 1922,

There are already processes for the production of | be agreed. The pattern is thereby

known from patterned papers, etc., achieved at j by the fact that the different colored paper

which on a base layer of paper pulp I layers of paper pulp in places empty spaces

different colored paper pulp patterns applied '' or only applied in places

and by pressure with the base layer, so that the product is not everywhere

has the same thickness, but is composed of raised and recessed parts is.

For certain purposes and to produce beautiful-looking pattern surfaces, however, it is necessary that the product has a uniform thickness and is flat over its entire surface and that the pattern is mosaic-like works. It also increases the durability ίο with a smooth surface and accumulation prevented from dust and the like. This is achieved according to the invention in that several different colored paper pulp patterns of the same thickness are applied to the base layer in such a way that these patterns complement each other in their outlines, that a full patterning layer of uniform thickness is created on the base layer.

Several embodiments of the invention are shown in the drawings. Fig. Ι shows a longitudinal section and Fig. 2 is a plan view of the shape and the Lids for making ordinary handmade paper.

Fig. 3 shows a longitudinal section and Fig. 4 shows a plan view of the mold and the a lid for the production of patterned paper according to the invention. Fig. 5 shows the top view of the further Lid, which completes that of Fig. 4.

Fig. 6 shows the top view of the finished two-tone patterned paper. Fig. 7 a and 7 b show schematically the cross section of the cardboard machine for patterned Cardboard.

Figs. 8, 9 and 10 show top views of Figs last three rollers according to Fig. 7 a and 7 b. Fig. 11 shows a cross-section of a detail.

With reference to Figures 1 and 2, α is the usual frame of the mold which is covered on its upper side with a layer of wire mesh b , with cross bars c supporting the wire mesh. With d the usual wooden lid is referred to, which rests on the frame α and surrounds the space immediately above the wire mesh, whereby a shallow, trough-like shape is formed. When floating the mold in the mash container, a layer of pulp will fill the mold, and after shaking the mold, this layer remains on the wire mesh in the form of a layer or board of damp paper, which is then removed and drained onto a felt or drained . This half-dried paper forms the basis of the patterned paper according to ^! Invention. After making the first! In the 2nd position, the cover d is removed from the frame [ and replaced by the cover d ¹ according to FIGS. 3 and 4. This cover has a wooden board or the like, in which cutouts are provided according to the desired pattern. The form can then be made to float in the container, which contains a different colored paper pulp, so that a layer of the paper pulp fills the space provided in the board, followed by the usual shaking of the mold and removal of the lid on the wire mesh Layer of colored paper remains, which corresponds in outline to the pattern. This layer of colored paper, after dripping off, is placed on the felt on the first-mentioned semi-damp paper and combined with it by pressure. The cover d * according to Fig. 5 is then placed on the frame a instead of the cover d ^l in Fig. 3. This cover contains a wooden board, which has the same pattern as shown in Fig. 4, but the cut-out parts are chosen so that they correspond to the full parts of the frame d ^l , whereby an exact complement of the pattern is formed. The form is then made to float in another container with paper pulp of a different color, so that after shaking, etc., another layer of paper pulp can be produced, which, after dripping off, is placed on the felt on the base sheet and in exact accordance with the first colored layer is brought, so that after combining under pressure a sheet of paper is formed, which consists on the top of two different colored bearings. Of course, more composite patterns or more frames can be used to produce three-color and multi-color patterns.

Although the process is primarily intended for side-by-side samples, which are arranged on a common base sheet can also do the same for paper products can be used, in which a number of different colored layers are superimposed, wherein these layers are united by pressure while they are still moist; there- no with the outlines or edges of the pattern stand out sharply, if the different colored ones Layers are laid on the base sheet, is the lower surface of the wooden board covered with a thin layer of rubber cut out exactly like that Wooden board. If the lid is pressed tightly onto the wire mesh, this is the case Prevents the wet pulp from coming out over the outlines of the pattern. For each Lid can be a particular shape used or it can be a number of

Lids of one and the same shape can be used.

With reference to Figs. 7 to 10, Fig. 7a indicates the left part of the machine and Fig. 7b the right part of the machine. With e ¹ , e ² , e ³ , e ⁱ are designated pulp containers in which paper pulps of different colors are contained. f \ f ² , f ^s , f *> are cylinders covered with wire mesh, which rotate in the paper pulp and collect the pulp on their outer surface and then convey it to the endless felt g, which is pressed against the wire mesh of the cylinder by small couch rollers . Assuming that the pattern consists of three colors, the container e ^{1 contains} the pulp for the base layer, which can be white or colored, while the other containers contain different colored paper pulp. Of the

The first cylinder f ^l is covered with an ordinary covering of wire mesh and transfers to the felt g an uninterrupted layer of paper pulp, the width of which is equal to the cylinder length, and this layer is passed through the felt to the other cylinders and then to the exit end of the machine. Each subsequent cylinder f ² , f ^s f ⁱ is slightly smaller in diameter than the cylinder f ¹ and is provided with wire mesh, which runs according to the corresponding part of the pattern. In the example shown, the cylinders f ² , f ^s , f ⁴ contain ribbons of the wire mesh, which run at a distance from the cylinder body, the position of the bands on the individual cylinders being offset from one another in such a way that the individual bands provide the entire paper web with pulp when they pass through the three cylinders. By means of cylinders formed in this way, a different colored pulp is transferred from each to the felt g , so that the colored product produces a striped paper web which can be pressed and dried. The excess moisture is removed from the slurry as it passes over the wire meshes of the cylinders in the usual manner. The number of containers and cylinders depends on the thickness of the product and the number of colors for the desired pattern.

It can also have two or more containers and cylinders for the base and two, three and more containers and cylinders are used for the colored sheets.

With the cylinders carrying the pattern, any mechanical means can be used to secure the wire mesh that applies the particular colored pattern. For example, the frame parts of the cylinder f ² . f ³ , f ⁱ , on which the wire mesh is attached, have 2.5, 5 or more centimeters less in diameter than the cylinder f ¹ , which is covered with the full area of the wire mesh. The pattern is delimited on each cylinder by thin strips i of suitable material, which are 5 cm or more wide (Fig. 11) and which are fixed vertically over the surface of the cylinder frame, the wire mesh running across the upper edges of the metal strips and is supported by reinforcement wires, rods, etc. The remaining part of the framework can be covered with thick sheets of waterproof paper e.g. Using rubber milk or sheets of tin, wood and other material to prevent the passage of pulp and water into the interior of the cylinders.

With the present invention, not only can patterned papers be produced, but also products which jointly contain paper pulp containing rubber milk contain vegetable, animal and mineral fibers. By enlarging the Amount of rubber can produce products of significant strength and durability which are waterproof, pliable and strong, making them a leather substitute as well Linoleum substitute for flooring and the like can be used. go

Claims (2)

Patent Claims: 1. Process for the production of patterned papers, cardboard, leather substitutes, Linoleum substitute, etc., in which. on a base layer of paper pulp of different colors Paper pulp patterns are applied and combined with the base layer by pressure, characterized in that several different colored paper pulp patterns of the same thickness are applied to the base layer in such a way that complement these patterns in their outlines in such a way that on the base layer a full pattern layer is more uniform everywhere Thickness arises. 2. Apparatus for performing the method according to claim 1, characterized through a series of flat or cylindrical scoop or sieve surfaces, their different colored paper pulp receiving pattern surfaces are chosen so that they complement each other in their outlines. Please refer to the sheet of drawings.