Heavy-duty laundry detergent wipe with washing active substrate

Abstract

The present invention discloses a homogeneous three-phase laundry detergent wipe and a method for manufacturing same, wherein washing active substances which are water insoluble and solid at ambient temperature are incorporated into a substrate which is solid at ambient temperature such that the substances are homogeneously distributed across the substrate after incorporation, and wherein the substrate so functionalized is impregnated with an impregnating liquid. The substances incorporated into the wipe can be zeolites and/or phyllosilicates and/or optical brighteners.

Claims

1. A method for manufacturing a homogeneous three-phase laundry detergent wipe, consisting of the following steps: (a) providing washing active substances which are water insoluble and solid at ambient temperature, wherein the washing active water insoluble substances comprise zeolites and/or phyllosilicates; (b) providing a substrate which is solid at ambient temperature; (c) incorporating said washing active substances into said substrate such that the substances are homogeneously distributed over the substrate after incorporation; and (d) impregnating the substrate so functionalized with an impregnating liquid comprising enzymes, wherein the final three-phase laundry detergent wipe consists of a liquid phase and two solid phases.

2. The method of claim 1, wherein the substrate consists of at least one continuous filament or a joint fiber.

3. The method of claim 1, wherein the substrate consists of at least one hydrophobic synthetic fiber such that it provides color adsorption.

4. The method of claim 1, wherein the impregnating liquid is a liquid washing detergent.

Description

DESCRIPTION OF THE PREFERRED EMBODIMENTS

(1) Generally, the distribution of the washing active substances and the solid components of the dispersion, resp., on a substrate is not homogeneous. The inventive three-phase laundry detergent wipe with homogeneous distribution of the washing active substances and the solid components, resp., could be realized by incorporating the secondary builders (zeolite and/or phyllosilicates and/or optical brighteners), which so far have been components of the dispersion applied to the substrate, in the substrate which is solid at ambient temperature during its manufacturing processi.e., before applying an impregnating liquid. The solid water insoluble additives can be added by means of a water bath before solidification of the substrate. Alternatively, the zeolite and/or the phyllosilicates can be sprayed onto the substrate during its manufacturing via a suspended dispersion (e.g., additive/water).

(2) Incorporating solid water insoluble and washing active substances (here: zeolite and/or phyllosilicates and/or optical brighteners) results in an activation of the substrate with components which provide the three-phase final product with the features of a heavy duty laundry detergent. After incorporating the solids the substrate so functionalized is impregnated with an impregnating liquid which is a liquid washing detergent. Impregnation of the functionalized substrate can be obtained by immersion in an immersion bath, spraying the liquid washing detergent onto the activated substrate or moistening the substrate with the liquid washing detergent using one or more moistening rods.

(3) The method of incorporating water insoluble solids into the substrate before applying the impregnating liquid has the following advantages: a) applicability of larger particles b) distribution of the washing active and water insoluble solids across the entire substrate depth (homogeneous distribution) c) depot function of the functional solids incorporated into the substrate resulting in a longer lasting diffusion of the particles during the washing process such that they are available over a longer period of time.

(4) Non-wovens from filament fibers (continuous filaments), in particular, from the following materials are suitable for the substrate: polypropylene polyethylene viscose polyester polyamide and mixtures of these raw materials

(5) The above mentioned raw materials for the substrate can be fiber mixtures (of one or more filament fibers) as well as joint fibers (jacket-core or side by side). The components described above are hydrophobic and thus have the advantageous feature to adsorb hydrophobic textile colors in the hydrophilic washing water.

(6) The present invention can be used in all categories of laundry detergents. For example, the following laundry detergent solutions were used:

(7) TABLE-US-00001 Heavy duty laundry detergent wipe (universal): anionic tensides nonionic tensides phosphonates/complex builders C10-C18 fatty acid salts optical brighteners enzymes stabilizers (propylene glycol, glycerine, borax, inulin) scents preservatives soil-release polymer pH regulators

(8) TABLE-US-00002 Color laundry detergent wipe (color): anionic tensides nonionic tensides phosphonates/complex builders C10-C18 fatty acid salts colorants color transfer protectors hydrotropes (sodium cumenesulfonate) enzymes stabilizers (propylene glycol, glycerine, borax, inulin) scents preservatives soil-release polymer pH regulators

(9) TABLE-US-00003 Black laundry detergent wipe (black): anionic tensides nonionic tensides phosphonates/complex builders C10-C18 fatty acid salts colorants color transfer protectors enzymes stabilizers (propylene glycol, glycerine, borax, inulin) opacifiers scents preservatives pH regulators

(10) TABLE-US-00004 White laundry detergent wipe (white): anionic tensides nonionic tensides C10-C18 fatty acid salts optical brighteners soil-release polymer color transfer protectors enzymes stabilizers (propylene glycol, glycerine, borax, inulin) colorants opacifiers scents preservatives pH regulators

(11) TABLE-US-00005 Fine laundry detergent wipe: anionic tensides nonionic tensides C10-C18 fatty acid salts phosphonates/complex builders color transfer protectors enzymes stabilizers (propylene glycol, glycerine, borax, inulin) scents defoamers preservatives pH regulators

(12) TABLE-US-00006 Wool laundry detergent wipe: anionic tensides nonionic tensides amphoteric tensides C10-C18 fatty acid salts phosphonates/complex builders color transfer protectors scents preservatives opacifiers conditioners pH regulators

(13) The liquid washing detergent of the impregnating liquid can have a viscosity greater than 500 mPas. Furthermore, all known components of a heavy-duty laundry detergent can be included.