DE186484C

DE186484C -

Info

Publication number: DE186484C
Application number: DENDAT186484D
Authority: DE

Description

Pate nt-A ν Sprüche:Godfather nt-A ν Proverbs:

1. Papier, dadurch gekennzeichnet, daß das Papier auf beiden Seiten mit länglichen Blasen (c) versehen ist, welche Luftzellen (D) einschließen.1. Paper, characterized in that the paper is provided on both sides with elongated bubbles (c) which enclose air cells (D) .

2. Papier nach Patentanspruch 1, dadurch gekennzeichnet, daß die Blasen nahezu parallel von einer Seite zur anderen des Papiers verlaufen.2. Paper according to claim 1, characterized in that the bubbles run almost parallel from one side to the other of the paper.

Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.

Claims

IMPERIAL

PATENT OFFICE.

The subject of the present invention is a new type of paper, which in produced in such a way that on the surface of ordinary paper there are extremely numerous small elongated bubbles are caused such that on both sides of the paper many very small air cells are created, which makes the paper not only soft, pliable and light, but also made more resistant by stressing it everywhere opposed a very uniform resistance.

For the production of the new type of paper, rope paper is preferably used, which usually consists of three layers of whole material, which in the press become a single one Paper sheets are united. Although such an arch represents a similar structure, there are three separate layers, of which the two outer layers are opposite the middle can be moved. Such a bow is now made by hand

/ or a machine gradually in one direction and / then in the other progressively laid in very small folds, with the two outer layers be stretched against the inner layer and partially from when straightening stand out among the middle class. This creates the bubbles in the two outer layers. In the drawing, FIGS. 1 and 2 show a sheet of paper treated in this way its front and back.

Fig. 3 is a cross section through it, greatly enlarged, while Fig. 4 is a cross section through the sheet of paper before it is treated.

A with the front and B with the back of the new type of paper is designated (Fig. Ι and 2). The elongated bubbles which run from side to side and enclose the air cells D are indicated by C (FIG. 3).

As can be seen from Fig. 3, the new type of paper differs from the known crepe paper, as well as the simply creased paper in that the bubbles formed on both sides of the paper, bumps forming bumps are unrelated to each other Well corresponds to the other and vice versa, but the bubbles are distributed on both sides of the paper in a haphazard manner. The formation of the same also creates the small air cells D on both sides of the paper, which give the paper a very low weight in relation to its volume.

The inventor has found through tests that a paper treated in this way is much tougher is than the same paper before treatment in that it acquires greater extensibility and therefore is able to offer greater resistance to repeated stresses.