DE3035038A1 - Cleaning cloth contg. polymeric porous microfibres with solid core - opt. with other types giving combined absorption and resilience - Google Patents

Abstract

Cleaning cloth comprises porous microfibres each consisting of a solid core and a surrounding, open-pore foam material. The fibres may be used alone or mixed with others of different types and/or covered on one or both sides by others. They are sealed with binding agent or autogenously. The other types of fibres may be staple or endless fibres, esp. highly crinkled and curled. Pref. binding agent is a foamed, soft plastics, esp. applied at intervals or in a pattern on the surface of the cloth. The pores of the open-pore, outer zone of the microfibres may contain a detergent, wetting agent, bactericide, fungicide and/or preserving agent. The cloth combines the advantage of natural fibres with their absorption capacity with the flexibility and softness of synthetic fibres.

Description

Cleaning cloth

The invention relates to a cleaning cloth with a porous content Fibers.

As intended, a cleaning cloth is provided for removing dirt to detach from the surface of an object to be cleaned and inside zq to save. The storage capacity depends essentially on the pore volume contained dependent, and one has therefore endeavored for a long time to make this as optimal as possible. One possibility that has been used for a long time in this regard is because of the salary on cavities in the use of naturally grown fibers. However, these are relatively brittle and can therefore become detached after only a short period of use Fiber components come in the form of dusty particles or Apply lint to the surfaces to be cleaned.

The invention is based on the object of developing a cleaning cloth, which no longer has this disadvantage with otherwise good performance properties.

According to the invention, this object is achieved by a cleaning cloth of the type mentioned at the beginning mentioned type, which is characterized in that the porous fibers microfibers are made of a polymer material, which have a substantially pore-free fiber core and have an open-pored foamed fiber cladding, and wherein the microfibers optionally mixed with other types of fibers and / or covered and through a Binders are glued or autogenously welded.

The different fibers can be made of the same polymeric material exist like the microfibers, which have advantages in physiological terms and / or in terms of resistance to aggressive cleaning fluids can. In an embodiment in which the microfibers and the different fibers consist of different polymeric materials, there is the advantage, on the other hand, modify the mechanical properties of the cleaning cloth on a larger scale to be able to. In particular, the desire for good abrasion resistance can be met in this way better combine with good flexibility.

I .so In this context, the Proven use of a fiber mixture in which the microfibers are made of polycarbonate and the different types of fibers are made of polyamide, polypropylene or rayon.

The microfibers preferably have a band-shaped profile that corresponds to the one is comparable to a lying eight. The ratio of the largest width of a such profile and the greatest thickness is in the range from 2.5 to 5. By the predominantly flat arrangement of the profile of these fibers within the cleaning cloth their mechanical resistance is relatively high, which is positive in terms of affects the resistance to abrasion. The largest diameter is 1 to 20 lu.

Microfibers are preferably used, their molecular structure as a result a previous stretching experience at least a partial O. # ientierung Has. The tensile strength of such microfibers is greater than that of a comparable one Microfiber with a disoriented amorphous molecular structure.

Synthetic fibers are preferred as fibers of a different type Staple fibers or continuous fibers for use, preferably crimped fibers.

All commercial grades are suitable, with preference being given is to choose those whose diameter is 5 to 20 times larger than the largest diameter of the microfibers. From an even mixture of both In addition to improved elastic resilience, the result is increased fiber types Fullness with improved dirt holding capacity. Optimal properties will be achieved by incorporating crimped staple fibers.

The staple fibers or continuous fibers can be made of a polymeric material exist, which has a lower melting point than that of microfibers = ~ A corresponding design can be produced easily and by spot welding solidify. The cleaning cloth is used in separate areas pressed together and at a temperature above the softening point of the staple fibers or heated continuous fibers. Their substance completely fuses to form a window appearing surfaces in which the microfibers, which are completely unchanged in their shape are involved.

A corresponding spot welding can be carried out on an industrial scale realize using a heated calender, the rollers of which have a corresponding Have surface engraving. The individual welds can have a weight per unit area of the cleaning cloth of 120 g / m2 a diameter of 0.3 mm and a mutual Have a distance of 1.2 to 2.8 mm. The bond can also be done with ultrasound or High frequency. Lie in the spaces between the welding surfaces the fibers without any mutual Loosely bonded to each other. You are accordingly mobile in these areas, and dirt to be picked up is easily transported into the interior of the cleaning cloth.

By arranging a special layer of staple or continuous fibers There is greater mechanical resistance on the surfaces of the cleaning cloth especially against abrasion. It goes without saying that such a stacking or continuous fiber cover layer may only have a relatively low density.

According to an advantageous embodiment, it is provided that in the pores of the open-pored foamed fiber jacket of the microfibers a detergent, a wetting agent, a bactericide and / or a fungicide and / or a preservative is stored. The pores of the microfibers extend essentially perpendicularly to the surface, and they have a predominantly cylindrical shape and uniform Distribution. Due to their small size, they are not compressible, and an active ingredient stored in it cannot therefore be replaced by a mechanical one Process''eåus remove the pores, but only through the action of a Solvent, for example water. According to the invention, this effect is used for exploited a significant expansion and improvement of the usage properties, by the substances from the above-mentioned classes of active ingredients into the pores be stored. The effect achieved is in any case a long-term effect.

It is limited, among other things, by natural wear and tear. One Similar even and economical use of such active ingredients was among the Conditions that exist in a normal household have not yet been possible.

The pores have a diameter of 0.01 to 0.5 tu, preferably from 0.05 to 0.2 leu, and the sum of their cross-sections covers 1 to 95%, preferably 10 to 70% of the total surface. Together they form a real one, clearly foamed view delimited by the pore-free fiber core, the 40 to 80%, preferably 60%, of the entire cross-section covered. The storage volume contained is accordingly significant.

The non-woven structure of the proposed cleaning cloth can also by a binder can be stabilized, which by impregnation and / or printing is one and / or applied. It is preferred to use binders that come from consist of a foamed soft plastic, for example a polyurethane or a latex foam. If a printing process is used, the result is Possibility of applying the binder in a pattern on one or both surfaces to distribute. In the first case, there is the advantage of coarse dirt first to be able to detach with the printed side of the cleaning cloth, which is partially covered by the gaps is picked up, then turn the cloth and start the cleaning process by using the unprinted front of the cleaning cloth. A good effectiveness by applying the printed side is especially then achieved when the pattern is printed on the surface of the cleaning cloth Binder protrudes over the surface in a relief-like manner if the individual BiY # middle surfaces sharp-edged and not wider than 2 to 3 mm. The mutual assignment can be anything. The ratio of the mutual distances and the width However, the individual sub-areas should not be more than 5. The partial areas can be formed by capital letters that follow each other while complying with the posed Condition are assigned.

An exemplary embodiment of the cleaning cloth according to the invention is reproduced in the attached recordings.

Figure 1 shows a drapable version of the cleaning cloth on a scale of 1: 4.

z Figure, scale 1: 20, refers to an ultra-fine fiber fleece, which is covered on both sides with a thin fleece and spot welded is solidified. The fibers of the thin ones are in the welded areas formed in the process Covering fleece incorporated. The penetration of the fine fiber layer through the openings between the fibers of the covering fleece can be clearly seen.

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Claims (6)

% Patent claims G cleaning cloth with a content of porous fibers, characterized in that the porous fibers are microfibers made of a polymeric material, which have an essentially pore-free fiber core and an open-pored foamed one Have fiber sheath, and wherein the microfibers optionally alone or with different fibers mixed and / or covered on one or both sides by this and are glued or autogenously welded by a binding agent. 2. Cleaning cloth according to claim 1, characterized in that the other types of fibers are synthetically produced staple or continuous fibers that preferably have a strong curl. 3. Cleaning cloth according to claim 1 to 2, characterized in that that the binder is a foamed soft plastic. 4. Cleaning cloth according to claims 1 to 3, characterized in that the binding agent "is distributed in a pattern on the surface. 5. Cleaning cloth according to claim 1 to 4, characterized in that that the binder has raised the surface on at least one side Towering over parts of the area. 6. cleaning cloth according to claim 1 to 5, characterized in that that the pores of the open-pored foamed fiber jacket contain a detergent, a wetting agent, contain a bactericide and / or a fungicide and / or a preservative.