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Patent Searching and Data


Title:
GLOVE INCLUDING A POWDERED FORMULATION
Document Type and Number:
WIPO Patent Application WO/2003/043481
Kind Code:
A2
Abstract:
Glove made of waterproof material used to apply water-soluble substances to the body surface or to other surfaces, wherein the palm side also comprises a layer of non-woven fabric (2) externally joined to said waterproof material to form at least a pocket (a) fit for containing a formulation of said substances in the form of a powder having a mean particle size of 1 mm max.

Inventors:
Apolet, Josef Berek (Via Arzaga 4, Milano, I-20146, IT)
Ciabatta, Franco (Via Nicotera 2, San Mariano - Corciano, I-06073, IT)
Trentini, Marco (Strada San Martino dei Colli, 23 Località Mugnano, Perugia, I-06100, IT)
Application Number:
PCT/IB2002/004854
Publication Date:
May 30, 2003
Filing Date:
November 21, 2002
Export Citation:
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Assignee:
T & C. S.R.L. PRODOTTI OSPEDALIERI (Via Brodolini, Ellera Di Corciano, I-06074, IT)
Apolet, Josef Berek (Via Arzaga 4, Milano, I-20146, IT)
Ciabatta, Franco (Via Nicotera 2, San Mariano - Corciano, I-06073, IT)
Trentini, Marco (Strada San Martino dei Colli, 23 Località Mugnano, Perugia, I-06100, IT)
International Classes:
A47K7/03; A47L13/19; (IPC1-7): A47L13/19; A47K7/03
Foreign References:
US5867829A1999-02-09
US5419014A1995-05-30
FR2694877A11994-02-25
FR2414897A11979-08-17
Other References:
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 11, 3 January 2001 (2001-01-03) & JP 2000 217736 A (MIYAZAKI SHIRO), 8 August 2000 (2000-08-08)
Attorney, Agent or Firm:
Gervasi, Gemma (Notarbartolo & Gervasi S.p.A, Corso di Porta Vittoria 9, Milano, I-20122, IT)
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Claims:
CLAIMS
1. Glove made of waterproof material for applying watersoluble substances to the body surface or to other surfaces, wherein the palm side also comprises a layer of nonwoven fabric externally joined to said waterproof material to form one or more pockets fit for containing a detergent formulation in the form of a powder having a mean particle size lower than 1 mm.
2. The glove as claimed in claim 1 in the form of a fivefingered glove or of a mitten.
3. The glove as claimed in claim 1 wherein said pockets are at least two.
4. The glove as claimed in claim 1 wherein said pockets are preferably located in the palm area below the three central fingers of the hand.
5. The glove as claimed in claim 1 wherein said waterproof material is polyethylene.
6. The glove as claimed in claim 1 wherein said nonwoven fabric contains 50 100% viscose and 050% polyester.
7. The glove as claimed in claim 6 wherein said nonwoven fabric contains 70% viscose and 30% polyester.
8. The glove as claimed in claim 1 wherein said nonwoven fabric is welded to said waterproof material.
9. The glove as claimed in claim 1 wherein said nonwoven fabric is joined to said waterproof material in such a way as to form embossings.
10. The glove as claimed in claim 1 wherein said powdered formulation is a detergent formulation.
11. The glove as claimed in claim 10 wherein said formulation contains 4 to 8% sodium sulphate, 4 to 8% sodium bicarbonate, 30 to 50% sodium lauryl sulphate, 15 to 25% powdered maize starch, 1 to 5% boric acid, and 15 to 30% alkyl taurates.
12. The glove as claimed in claim 11 wherein said formulation contains 5.9% sodium sulphate, 5.9% sodium bicarbonate, 40% sodium lauryl sulphate, 25% maize starch, and 20% alkyl taurates.
13. The glove as claimed in claim 1 wherein the mean particle size of said powder is lower than 300 u.
14. The glove as claimed in claim 1 comprising a longitudinal adhesive strap, coming out of the opening of the glove.
15. Process for the manufacture of the glove as claimed in claim 1 comprising the following steps: a) discrete areas of the waterproof layer surface are loaded with a powdered formulation; b) a layer of nonwoven fabric is joined to the layer of step a) in correspondence to the surface of said layer loaded with the powdered formulation in such a way as to form pockets containing said formulation; c) the layer prepared in step b) is cut and joined to a layer of waterproof material to form a glove.
16. The process as claimed in claim 15 wherein steps b) e c) are preferably carried out by hot, ultrasoundand laserwelding.
17. The process as claimed in claim 15 wherein in step b) said pockets are formed simultaneously with embossings.
18. Apparatus used to perform steps a) and b) of the process as claimed in claim 15 comprising: I) two elements (1) and (1') capable of unwinding a ribbon: the first element capable of unwinding a nonwoven fabric ribbon and the second, located below the first one, capable of unwinding a waterproof ribbon; II) a meter (2), located downstream of said elements, containing a powdered detergent formulation, capable of loading, with an adequate amount of said formulation, discrete areas of said ribbon of waterproof material ; III) means (3), located downstream of said meter, for joining said waterproof material to said nonwoven fabric in such a way as to form pockets containing said formulation.
19. The apparatus as claimed in claim 18 wherein in step 11) said meter is located at a distance from said ribbon lower than 0.1 cm..
20. The apparatus as claimed in claim 18, wherein in step Ill) said means are hot welding rollers.
Description:
GLOVE INCLUDING A POWDERED FORMULATION Field of the invention The present invention refers to a new type of glove particularly useful in the field of body hygiene and in the cleaning of objects and surfaces.

Prior art Gloves made of waterproof material are traditionally used in the cleaning of objects and surfaces as well as in the hygiene of human and animal bodies as they prevent the operator's hands from coming into contact with aggressive detergents and with the bodies themselves. They are always used with absorbent means, e. g. sponges or cloths, and with detergents.

Said gloves have been lately improved by coating the waterproof layer with a layer of non-woven fabric containing a detergent. The result is a polyfunctional glove that can protect, absorb and clean, and allows simpler and more effective hygiene and cleaning operations as it reaches parts of the body or surfaces little accessible to sponges or cloths.

However, the polyfunctional gloves developed so far have a number of drawbacks since the detergent is incorporated therein in liquid form by soaking the absorbent layer with a detergent solution and by successive water evaporation. The total water elimination is difficult and a number of complex processes is required, i. e. they must be repeatedly exposed to high temperatures and air streams. That is why their production is time-consuming and expensive. Furthermore, should water be present, the addition of fungicides and antibacterials will be required to prevent the development of microorganisms during gloves manufacture and storage. It follows that said gloves cannot be used by individuals sensitive to the aforesaid substances.

Summary of the invention The inventors have now developed a new glove to be used to apply substances, in particular detergents, to the body surface or to other surfaces, wherein said substances are incorporated in the form of a powder.

The inventors have also developed an apparatus fit for the production of said glove.

Brief description of the figures Figure 1 schematically shows the palm side of an example of implementation of a glove according to the present invention.

Figure 2 schematically shows an example of implementation of an apparatus for the production of a glove according to the present invention.

Description of the invention The present invention refers to a glove made of waterproof material preferably five-fingered or in the form of a mitten, used to apply water-soluble substances to the body surface or to other surfaces, wherein the palm side also comprises a layer of non-woven fabric externally joined to said waterproof material to form one or more pockets, preferably at least two, fit for containing a formulation of the aforesaid substances in the form of a powder having a mean particle size of 1 mm max.

The term"glove in the form of a mitten"is used herein to mean a glove having a single housing for five fingers or two separate housings, generally one for the thumb and one for the other four fingers.

When the glove is being used, it is worn, wetted with water to dissolve the substances contained therein, and rubbed over the surface to be treated. The claimed glove is used in particular in the field of personal hygiene and in the cleaning of objects and surfaces.

Preferably, the aforesaid waterproof material is polyethylene.

The aforesaid non-woven fabric preferably consists of 50-100% viscose and 0- 50% polyester, more preferably 70% viscose and 30% polyester.

The inventors have found that when said non-woven fabric is used, the substances contained in the pockets, upon dissolution by contact with water, are released from the glove at an optimal rate, with a slow and constant flow.

Preferably, the layer of non-woven fabric and the waterproof layer are welded together.

Furthermore, the layer of non-woven fabric is preferably joined to the waterproof layer in such a way as to form embossings which make the fabric softer and more absorbent.

The aforesaid pockets are preferably located in the palm area that, when the glove is worn, is below the three central fingers of the hand (i. e. forefinger, middle finger and ring-finger).

The claimed glove may include detergents, cosmetic or pharmaceutical active ingredients and/or any other substance to be applied to the body surface or to other surfaces.

According to a particularly preferred embodiment of the invention, the glove contains a detergent formulation. Said formulation preferably contains 4 to 8% sodium sulphate, 4 to 8% sodium bicarbonate, 30 to 50% sodium lauryl sulphate, 15 to 25% maize starch, 1 to 5% boric acid, and 15 to 30% alkyl taurates. More preferably, said formulation contains 5.9% sodium sulphate, 5.9% sodium bicarbonate, 40% sodium lauryl sulphate, 25% maize starch, and 20% alkyl taurates.

The inventors have found that the powdered formulation must have a mean particle size lower than 1 mm, preferably lower than 300 jim. Said particle size allows the immediate solubilisation of the powder by contact with water and prevents the non-dissolved powder particles, if any, from exerting an abrasive action, when the glove is being used, with consequent skin or surfaces scratching.

Furthermore, said particle size avoids, during glove manufacturing, that the presence of powder particles on the sealing areas cause punctures in the waterproof layer.

The glove according to the invention may be also provided with a longitudinal adhesive strap, coming out of the opening of the glove, and which can be fastened around the wrist, which prevents the glove from slipping off and the liquid from flowing in.

An embodiment of the present invention is shown in Figure 1. In the palm of the mitten-type glove illustrated therein, indicates the pockets containing the detergent formulation the embossing of the non-woven fabric, and the adhesive strap at the opening of the glove.

The present invention also refers to a process for the manufacture of the claimed glove. Said process foresees the following steps: a) discrete areas of the waterproof layer surface are loaded with a powder formulation; b) a layer of non-woven fabric is joined to the layer of step a) in correspondence to the surface of said layer loaded with the powdered formulation in such a way as to form pockets containing said formulation; c) the layer prepared in step b) is cut and joined to a waterproof layer to form a glove.

Steps b) e c) are preferably carried out by hot-, ultrasound-and laser-welding.

Optionally, in step b) said pockets and embossings are formed simultaneously.

The present invention also refers to an apparatus for performing steps a) and b).

Figure 2 is a schematic representation of an example of said apparatus.

The apparatus according of the invention comprises: I) two elements (1) and (1'), preferably rollers, capable of unwinding a ribbon: the first roller being capable of unwinding a non-woven fabric ribbon and the second, located below the first one, of unwinding a ribbon of a waterproof material ; II) a meter (2), located downstream of said elements, containing the powdered detergent formulation, capable of loading, with an adequate amount of said formulation, discrete areas of said waterproof ribbon; III) means (3), located downstream of said meter, for sealing said waterproof material to said non-woven fabric in such a way as to form pockets containing said formulation.

In step 11) the meter is preferably located at a distance of 0.1 cm max from said ribbon.

The means of step III) are preferably hot-welding rollers.

Step c) is carried out with apparatuses as commonly used in gloves manufacture.