DE1235856B - To brush - Google Patents

Description

GERMAN 4MWW> PATENT OFFICE

EDITORIAL DEVELOPMENT DeutscheKl .: 9b-3/02

Number: 1235 856

File number: S 90114 m / 9 b

1 235 856 filing date: March 19, 1964

Opened on: March 9, 1967

The invention relates to brushes with bristles made of plastic fibers.

Plastic fibers have long been used as bristles for brushes because of their good properties used, and they are valued above all for their excellent strength and durability against attacks by chemicals, bacteria and insects. The usual arrangement of the bristles in the brushes takes place in that the bristles are preformed in the form of a large number of individual fiber bundles Recesses of the bristle carrier drawn in, screwed in or pressed in by means of wire loops or in it using pitch, natural or synthetic resin, if necessary with heating, be attached.

A disadvantage of these known arrangements is that as a result of the more or less large distance easily collect dirt between the individual fiber bundles in the spaces between the bundles that is difficult to remove. In addition, the usual manufacture of the brushes cumbersome and time-consuming, as all fiber bundles of a brush are attached and fastened individually have to.

These disadvantages do not apply to brushes with bristles made of plastic fibers, which have a bristle carrier is used, on which the fibers according to the invention with an adhesive - as known per se - are anchored in the high-voltage electrical field by electrostatic flocking.

The method of electrostatic flocking is known and is used e.g. B. for the production of velvet, plush or suede-like articles are widely used. These are pretty thin ones Fibers, while fibers of at least about 0.07 mm thickness come into consideration for brushes.

It has been found that brushes made by electrostatic flocking have excellent properties which even surpass those of the usual brushes in many respects. So is it z. B. an advantage of the brushes according to the invention that the fiber density can be selected to be very high and that all the fibers are practically parallel to each other, resulting in a very intensive brushing and Cleaning effect results. Another advantage is that the brushes have a completely even layer of fibers have, in contrast to the usual brushes, which consist of individual, protruding from each other Fiber bundles are composed. This eliminates the empty spaces between the fiber bundles, and the possibility of dirt building up inside the brushes is significantly reduced.

to brush

Applicant:

Societe de la Viscose Suisse,
Emmenbrücke, Lucerne (Switzerland)

Representative:

DipL-Ing. W. Meissner and Dipl.-Ing. H. Tischer, patent attorneys, Munich 2, Tai 71

Named as inventor:
Fritz Flückiger,

Emmenbrücke, Lucerne (Switzerland)

Claimed priority:

Switzerland of July 10, 1963 (8632)

As fiber material, all plastic fibers customary for electrostatic flocking are suitable, e.g. B. Fibers made from rayon, cellulose esters, polyamides, polyesters, polyvinyl chloride, polyacrylonitrile, etc. each Depending on the type, length and thickness of the fibers used, brushes of different quality and hardness are obtained. While the usual fibers generally have a more or less round cross-section, special brush effects can also be achieved by using profiled fibers, which have tri- or polygonal or any other non-round cross-sectional shapes.

Examples of brushes that are electrostatically flocked with polyamide fibers are titers, The diameter and length of the fibers used as well as the weight and density of the fiber layer and quality of the brushes:

E.
Titer
(tex) nzelfaser
By
knife
(mm) η
length
(mm) fiber
weight
(S / m *) edition
density
(N / m ² ) quality
the
to brush 50
24
9 0.23
0.16
0.10 10
5
5 1500
1000
800 3 • IO ⁶
8 • IO ⁶
17 IO ⁶ very hard
hard
soft

As a carrier substance for the reception of the fibers, you can use any material that is involved with provided with an adhesive and in the electrical

709 518/22

Claims (1)

High-voltage field can be flocked electrostatically, such. B. paper, textiles, wood, metals, plastics etc. The carrier materials can also be in a wide variety of forms, i. i.e., they can not only be flat, as is usually the case, but also curved, disc-shaped, wire-shaped or cylindrical in shape to have. Flat, flocked surfaces can also be easily and quickly cut out or punching out all possible desired shapes and by gluing, screwing, riveting etc. on other substrates. In this way you can also make brushes in shapes, which after the usual production methods not at all or only in a very cumbersome way Way are available. Because the carrier substance can be very thin and because of the high fiber density the use of shorter bristles than with conventional brushes is possible, the inventive Make brushes in an extremely flat shape, which z. B. a particular advantage for the Production of small pocket brushes is. Finally, the brushes according to the invention can be used for all purposes Brushes are used at all, i.e. for cleaning, sweeping, sanding, polishing, etc., should be mentioned use for clothes, shoe and toothbrushes, cleaning brushes for carpets, floors, Devices, machines and all kinds of utensils, grinding and polishing brushes in disc form and spiral cylinder brushes for cleaning pipes and moving material. Claim: Brush with bristles made of plastic fibers with a minimum diameter of 0.07mm, characterized by the use of a bristle carrier, on which the fibers - as is known per se - with an adhesive by electrostatic Flocking are anchored in the high-voltage electrical field.