JPS58109024A - Sponge coating head - Google Patents

Abstract

1. Sponge applicator head (1) for placing on a bottle for a surface treatment medium, such as shoe dye, particularly shoe whitener, wherein the open-pored sponge (2) is partially enclosed as well as compressed by an insert (3) to be plugged into the bottle neck and protrudes from the insert (3) on the outside in the shape of a mushroom or calotte, characterised thereby, that the insert (3) - underneath the uncompressed as well as radially projecting sponge rim (8) - possesses an about axially extending annular groove (10) with holes (11) passing through the insert (3) to the interior of the bottle.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sponge applicator head for mounting onto a bottle for surface treatment agents such as shoe creams, especially white creams. - Bottle means any bottle-like container made of plastic, glass or metal.

There are two types of applicator devices with sponge applicators for white creams and creams of other colors, namely containers with an applicator such as a sponge and a central hole and an applicator with a valve. The first device is suitable only for highly viscous products and cannot be applied in the case of low viscosity creams, especially self-shining emulsions.

Other devices rely on relatively expensive mechanisms that also allow discontinuous pumping motion.

The invention is based on the problem of creating an application device in which self-shining emulsions can also be applied for shoe care, etc., and which allows a continuous supply of the product. In the case of a sponge applicator spatula P that can be attached to a bottle, this problem is solved by an insert that can be inserted into the bottle neck with an open-pore sponge (
3) is partially surrounded and compressed by the insert and projects outwardly from the insert in a mushroom-like or cranial manner, and the insert is located below the uncompressed radially projecting sponge edge 8. The problem is solved by having a substantially axially extending (with respect to the bottle opening) annular hole with a through hole (11) leading through it and into the bottle interior. A cylindrical sponge is preferably provided, for which a cylindrical insert interior space is arranged, which accommodates the sponge in partial compression during application. .

The sponge applicator head according to the present invention can of course be screwed in to seal the product in an airtight manner for storage! This prevents undesired product leakage even when the bottles are stored stably. On the other hand, if the bottle is guided into the application position without being screwed in, the effect of a continuous flow of the product via the holes provided in the applicator spatula P can occur. That is, the product is fed through the annular groove and thus without filtration to the uncompacted edge portion of the sponge body. If the bottom of the annular groove has three holes leading into the interior of the bottle, preferably at approximately the same distance from each other, a radial product flow in three directions of the sponge corresponding to these holes will occur, and thus Optimal distribution of product within the sponge is obtained. In this way, a sealing film of the product can be quickly applied. .

Moreover, the unexpected advantage of the sponge applicator head according to the present invention is that
When the mushroom-shaped sponge upper part or the skull-shaped sponge part is pressed onto the object surface in the application position, it closes the annular groove provided at the periphery, so that undesirable direct wetting of the treated surface, e.g. the skin, is avoided. . Also, for the same reason, undesirable overpopulation is actually prevented.

With the inventive construction of the inventive coating head, the advantages of the known spon faplicators are therefore:
It is coupled to the valve applicator without incurring the disadvantages mentioned at the outset, and in particular the valve function is achieved without the need for additional valve elements.

Next, the present invention will be explained in further detail with reference to drawings showing examples.

The sponge applicator head according to the present invention, shown in its entirety in 1.
It has a sponge 2 which is partially surrounded by an insert 3 which can be inserted into the neck of the bottle (not shown) and which has a lower part within the insert in a ratio of approximately 4:1. It is compressed with . For this compression, a star-shaped clamping ring 5 is preferably provided around the inner periphery of the bottom of the insert facing the inside of the bottle. Due to the dimensioning of the internal space 9 of the insert 3 and the clamping ring 5, the sponge 2 protrudes in the form of a mushroom or skull 7 by about a quarter - or part - above the upper edge 6 of the insert 3. must become.

It is important here that the sponge 2 projects roundly outwards onto the upper part 6 of the insert 3.

Below the radially projecting uncompressed sponge edge 8 there is an annular groove (11
Must be set to 0. This annular groove 10 has a through hole 11 leading through the insert 3 into the interior of the bottle 1, the diameter of which is adapted to the viscosity of the product to be applied. In the case of low viscosity self-shining emulsions with a viscosity of 10 QcP and a pigment particle size in the micrometer range, the pore diameter is approximately 0.6 mm.

In the case of the sponge application head according to the invention, the product is clearly supplied directly to the skull 7 via the holes 11 without being filtered through the spinneret 2 . The product enters through the axial hole an annular groove 10 surrounding the sponge, and in the point of application (reversal pin) it reaches from the annular groove preferably the underside of the sponge edge which rests on the treated surface and assumes its lowest position. . Since the lower part of the annular groove 1o, which serves only to press the sponge against the treated surface, is covered by the sponge 8, direct wetting of the treated surface by the pin contents cannot occur.

[Brief explanation of drawings]

FIG. 1 is a schematic illustration of a sponge application head according to the invention, partially shown in side view and partially in section; FIG. Sponge application head, 2... Sponge, 3... Insert, cow... Insert bottom, 5... Tightening cylinder, 8... Sponge edge, 9... Inner space of the insert, 10...Circular miso, 1
1...Through hole Figure 1 Figure 2

Claims (1)

[Claims] 1. A sponge applicator for attaching to a bottle for a surface treatment agent such as shoe cream, especially white cream)' (1)
In the case, an open-pore sponge (2) is partially surrounded and compressed by an insert (3) which can be inserted into the neck of the bottle, and on the outside the insert (3) is shaped like a mushroom or a skull. ), and the insert (,7) protrudes from the uncompressed radial sponge error)8.
An annular groove (1) extending in the direction of the barb axis has a through hole (11) below the insert body (3)' leading to the inside of the bottle.
A spin-on coating spatula characterized by having 0). 2. A cylindrical sponge (2) and a cylindrical insert (3) that partially compresses and accommodates the sponge (9).
A coating head according to claim 1, having: 3. Application head according to claim 1 or 2, wherein the insert (3) has a preferably star-shaped clamping ring (5) on the bottom (4) facing the inside of the bottle. 4. The applicator spatula P according to claim 3 is capable of compressing the area f of the tightening ring (5) in a ratio of about 4:1. 5. Application head according to any one of claims 1 to 4, in which the bottom of the bottle (11) has three holes (11) leading into the interior of the bottle, preferably at approximately the same mutual spacing.