DE202013010477U1 - Cleaning cloth with structured edge - Google Patents

Abstract

Cleaning cloth (1) with a structured edge (2), which has a melting surface (7) due to a hot cutting process in the edge-side cutting area (10), characterized in that at least one welding point is arranged in the area of the structured edge (2), which is at an angle to Surface of the cleaning cloth at least partially penetrates the fiber material of the cleaning cloth (1) and is designed as a fiber consolidation point (3).

Description

The innovation relates to a cleaning cloth with structured edge according to the preamble of the protection claim. 1

Cleaning wipes generally serve for cleaning, wiping and drying and are used, for example, as dusters, tea towels, for car care, for industrial cleaning or for surface preparation.

The cleaning cloth may preferably consist of a microfibre, which, for example, can absorb moisture, creating a humidified cleaning process on z. B. glasses or a glass or a mobile phone display can be achieved.

Starting from a large fabric, the cleaning cloth can be separated for example by a punching process. Advantageously, however, the desired cloth size can be using a hot cutting process such. B. cut an ultrasonic cutting process. Ultrasonic cutting is a technical process in which the material is pressure-free cut with an ultrasonically excited blade. Ideally, the cut fabric does not need any stitched corners and edges because the fibers are fused in the cut area.

It is already known from the prior art that in cleaning wipes a straight edge region is produced by means of an ultrasound cut. However, this can easily tear and the crack can spread relatively quickly in the middle of the cloth.

In order to reduce the formation of cracks, the prior art provides a wavy cut in the edge region, since fewer contact surfaces are available due to the wavy cut.

With the DE 1790921 For example, a double-sided usable cloth is disclosed. The two cloth sides can be woven on two sides or be formed as a knitted cloth and have different surface. In one embodiment, the cloth is designed as a polishing and / or cleaning cloth. According to the 1 the cloth has a wave cut in the edge area. The waves are produced by a punching or cutting process, but this has a significant disadvantage, since the edge area can easily leave when using the cloth.

Due to the repeated use of the cleaning cloth and due to the low fabric thicknesses, there is often a tearing of the cloth in the edge region. Especially the microfiber cloths are suitable as reusable cleaning cloths and can be used several times in the household and in industry. A torn cleaning cloth is no longer useful because the continuous cleaning surface of the cloth is interrupted and thus no good cleaning effect can be eingeielt.

The novelty is therefore the object of the structured edge region in a cleaning cloth of the type mentioned in such a way that it has a better crack resistance.

To solve the problem, the innovation is characterized by the features of the protection claim 1.

An essential feature is that the cleaning cloth has a structured edge, which is produced by means of an ultrasonic cutting process and along the edge on the cloth side welding points are arranged in the form of Faserfestigungspunkten.

By arranging individual, spaced ultrasonic spot welds in the edge region of a cleaning cloth results in the first time the advantage of a special crack resistance. Although the edge area of the cleaning cloth is already solidified by the preceding ultrasonic cutting method, the propagation of a small crack in the edge area of the cleaning cloth is additionally prevented by the fiber setting point, since it can no longer propagate in the direction of the cleaning cloth center.

The ultrasonic welding point acts as a fiber setting point, because in this area the yarn is selectively fused or solidified, which prevents crack propagation.

In a first embodiment, the cloth has a uniformly extending wave cut in the edge region. The fiber consolidation point according to the invention is achieved by an ultrasonic welding point and is arranged in each case in the raised area of the shaft. Preferably, the ultrasonic welding point is generated with the same ultrasonic cutting machine, which also performs the wave cut.

In a second preferred embodiment, the edge region has a zig-zag cut. The renewal fiber consolidation point (ultrasonic needle-prick) is arranged in the region of the raised peaks.

In a third preferred embodiment, the cloth is straight in the edge region cut and has at uniform intervals in the edge region fiber bonding points (ultrasonic pinpoints).

In all embodiments, it is also possible to arrange the fiber consolidation point in the lower or outlying region of the shaft or the zig-zag shape.

The cleaning cloth is preferably formed as a microfiber cloth, which consists of a textile fabric such. B. a knitted fabric, knitted fabric, woven or nonwoven fabric can be made. The innovation should not be limited only to microfibre cloths, but claim protection for all textile cloths.

The cleaning cloth preferably has a rectangular shape, but may also have square, round, oval or another geometric shape.

In a preferred embodiment, the cloth may have two equal, opposite surfaces.

In a further embodiment, the cloth may have two different surfaces, for example, one surface has a smooth structure, while the opposite surface has a rough structure.

In a further preferred embodiment, a microfiber cloth can be joined to a sponge and thus preferably has two different surfaces, one surface being a smooth surface which serves for polishing, while the opposite side can absorb moisture.

It is also possible that the microfiber cloth is arranged on both sides and between them a sponge material is arranged in the middle region, which can absorb moisture and emit it through the microfiber cloths.

Preferably, the cloth essential to the invention is used for a cleaning process, wherein the cleaning process can be carried out both moist, as well as dry.

It is also possible to equip the cleaning cloth with a pre-prepared liquid. When removing the cleaning cloth from a container, the cloth already contains a cleaning liquid and is thus ready to use.

As cleaning liquids can serve all chemicals, which achieve a cleaning effect. It is also possible to use the cloth only in conjunction with water.

In the following, the innovation will be explained in more detail with reference to drawings showing only one embodiment. Here are the drawings and their description further essential features and advantages of the innovation out.

Show it:

1 Structured edge area with fiber consolidation point

2 Microfiber yarn with fibrils

3 Microfiber yarn in side view with the inside fibrils

4 Microfiber yarn with the enamel surface according to the invention

5 Cross section through a microfiber yarn

6 Arrangement of the fibrils within a microfiber yarn

7 Cutting area of a microfiber cloth with fiber setting point

8th Edge area after the innovation

With the 1 become two different, structured border areas 2 a cleaning cloth 1 shown. The first, upper edge 2 is wavy. The middle edge 2 has a zig-zag shape. And the bottom edge ( 2 ) is currently being trained.

The cleaning cloth 1 is cut out with a hot cut, for example, from a large fabric. The cut takes place here so that a structured edge 2 on the cleaning cloth 1 arises. The innovation also understands under a structured edge that this is smooth.

When hot cutting, the cleaning cloth 1 already during the thermal cutting at the edges or at the edge 2 clean sealed. Here, an electrically heated cutting knife cuts through the cloth material. The resulting cut edges melt and can be flattened in another step. This creates a stable and clean welded edge 2 ,

It is preferred in the production of the structured edge 2 used the ultrasonic separation welding. The main advantage of ultrasonic cutting welding is that the edges are already sealed during cutting and so on Fraying is prevented. By means of the ultrasonic cutting process, both elastic and non-elastic synthetic textiles can be cut.

In each crest-near region of the wavy edge 2 shows the cleaning cloth 1 at least one spot weld, which as a fiber consolidation point 3 serves. The spot welds the fibers 4 the undulating or zigzag-shaped edge 2 welded selectively, whereby a crack propagation is prevented in the cleaning cloth center.

In an advantageous embodiment, both the production of the edge 2 , as well as the fiber strengthening point 3 manufactured with the same ultrasonic cutting device.

Is the area of the border ( 2 ) formed by the previous hot cutting process, it has at least two horizontally spaced, parallel to the edge region ( 2 ) arranged fiber strengthening points ( 3 ) on.

However, the present innovation is not intended to refer to a fiber consolidation point ( 3 ) per wave or per point.

Of course, several fiber strengthening points ( 3 ) can be arranged.

In a preferred embodiment, the longitudinal axis of the fiber consolidation point ( 3 ) an angle of 90 ° to the surface of the cleaning cloth ( 1 ) on.

Also, the longitudinal axis of the fiber consolidation point ( 3 ) another angle to the surface of the cleaning cloth ( 1 ) exhibit.

With the 2 becomes a fiber 4 or a microfiber yarn 4 a cleaning cloth 1 shown which prefers numerous fibrils inside 5 having. In one embodiment, the microfiber yarn 96 Have fibrils, which in turn comprises 12 fibers.

By the ultrasound application, the individual fibrils 5 welded, resulting in the microfiber yarn 4 solidified in this subarea.

With the 3 becomes a side view of a raw microfiber yarn 4 represented, wherein in the front area the fibrils 5 within the microfiber yarn 4 are shown.

According to the 4 has the microfiber yarn 4 in the front area a melting surface 7 on, which has arisen, for example, by an ultrasonic cutting process. In the area of the melting surface 7 becomes the microfiber yarn 4 solidified so that fraying is prevented.

Such solidification becomes, for example, in ultrasonic cutting in the region of the structured edge 2 achieved because in the edge area all microfibers 4 merge. Tearing in this area is thereby largely avoided. Also, such solidification occurs in making the fiber consolidation point 3 instead of.

With the 5 is an example of a microfiber yarn 4 with the fibrils 5 shown, wherein the microfiber yarn 4 made of polyester 8th and polyamide fibrils 9 consists.

According to the 6 becomes a cut through a cleaning cloth 1 shown in the edge region, wherein by a cutting process, the cleaning cloth 1 was separated from a substance.

The edge 2 of the cleaning cloth 1 is structured and has a uniform waveform. The cut in the edge area 2 has preferably been produced by an ultrasonic cutting method. By hot cutting in the cutting area 10 of the edge 2 become the fibrils 5 the fiber 4 merged, whereby the crack resistance is increased in the edge region.

According to the innovation, this crack resistance can be further increased by individual fiber bonding points in certain horizontal distances 3 are arranged, these preferably in the direction perpendicular to the surface of the cleaning cloth 1 be welded. The fiber consolidation point 3 has a length 11 on, which preferably over the entire thickness of the cleaning cloth 1 extends. By the arrangement of the fiber consolidation point 3 will selectively all vertical fibers 4 fused over the entire thickness of the cloth, resulting in increased strength in the edge area 2 of the cleaning cloth 1 is reached. In a preferred embodiment, the fiber consolidation point is through-welded through the cleaning cloth.

With the 7 will be another illustration of the border area 2 shown. The border area 2 has a corrugated section with a wave crest 13 and a trough 12 on. A hot-cutting process creates a melting surface 7 in the cutting area. In the elevated area of the wave or under the back of the wave mountain 13 are single fiber consolidation points 3 arranged, which prevent as solidification against entry of the cloth from outside to inside.

In the area of the wave valley 12 finds no injury to the fiber 4 or change by a hot cutting process instead.

By hot cutting, the innovation means all cutting processes that separate the textile material due to heat. Such methods may be, for example, laser cutting, ultrasonic cutting or ultrasonic cutting.

The main advantage of the innovation is that the arrangement of fiber strengthening points 3 at the edge 2 a cleaning cloth 1 an increase in crack resistance is achieved.

LIST OF REFERENCE NUMBERS

1

cleaning cloth

2

edge

3

Fiber solidification point

4

Fiber (microfiber yarn)

5

fibril

6

ultrasonic beam

7

melting area

8th

polyester

9

polyamide

10

cutting area

11

Length of 3 )

12

trough

13

Wellenberg

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 1790921 [0007]

Claims (10)

Cleaning cloth ( 1 ) with structured edge ( 2 ), which due to a hot cutting process in the marginal cutting area ( 10 ) a melt surface ( 7 ), characterized in that in the region of the structured edge ( 2 ) at least one welding point is arranged at an angle to the surface of the cleaning cloth, the fiber material of the cleaning cloth ( 1 ) penetrates at least partially and as fiber strengthening point ( 3 ) is trained. Cleaning cloth ( 1 ) according to claim 1, characterized in that the edge ( 2 ) is wave-shaped. Cleaning cloth ( 1 ) according to claim 1 or 2, characterized in that the fiber strengthening point ( 3 ) near the vertex of the wave of the edge ( 2 ) is arranged. Cleaning cloth ( 1 ) according to claim 1, characterized in that the edge ( 2 ) is formed zigzag-shaped. Cleaning cloth ( 1 ) according to one of claims 1 or 4, characterized in that the fiber strengthening point ( 3 ) in the region of the tips of the zigzag edge ( 2 ) is arranged. Cleaning cloth ( 1 ) according to one of claims 1 to 5, characterized in that the fiber strengthening point ( 3 ) can be produced with an ultrasonic welding device. Cleaning cloth ( 1 ) according to one of claims 1 to 6, characterized in that the fiber strengthening point ( 3 ) the fiber material of the cleaning cloth ( 1 ) penetrates completely and thus over the entire thickness of the cleaning cloth ( 1 ). Cleaning cloth ( 1 ) according to one of claims 1 to 7, characterized in that the edge ( 2 ) and the fiber consolidation point ( 3 ) are manufactured with an ultrasonic cutting device. Cleaning cloth ( 1 ) according to one of claims 1 to 8, characterized in that the longitudinal axis of the fiber consolidation point ( 3 ) an angle of 90 ° to the surface of the cleaning cloth ( 1 ). Cleaning cloth ( 1 ) according to one of claims 1 to 9, characterized in that the longitudinal axis at an angle other than 90 ° to the surface of the cleaning cloth ( 1 ) having.

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