GB2170306A

GB2170306A - Moist towelette cooling device

Info

Publication number: GB2170306A
Application number: GB08501463A
Authority: GB
Inventors: Tsui-Ying Chang
Original assignee: CHANG TSUI YING
Current assignee: CHANG TSUI YING
Priority date: 1985-01-21
Filing date: 1985-01-21
Publication date: 1986-07-30
Also published as: GB8501463D0

Abstract

A cooling device for a moist towelette comprises an inner polyethylene bag 11 containing water 10. Inner bag 11 is sealed inside packing bag 1 with ammonium nitrate and sodium chloride 12. A moist paper towel 2 is wrapped around the packing bag 1 and the complete unit is sealed in an outer bag. The inner bag 11 is broken by, for example, crushing. The salts mix with the water, resulting in a temperature reduction of the water and subsequent cooling of the moist towel 2 which is wrapped around the packing, bag 1. The outer bag is then opened to extract the cooled, moist towel 2. The preferred salt: water ratio is sodium chloride 15%, ammonium nitrate 25%, water 60%, by weight. <IMAGE>

Description

SPECIFICATION Moist towelette cooling device In the present prosperous society, people generally pay particular attention to personal sanitary habits. Moist towelettes or towels, etc. are necessities in restaurants and elsewhere for people to clean their hands in order to meet usual sanitary requirements. Heretofore, moist towelettes have been put in a refrigerator to be cooled in order to provide a moistening and cooling effect. If there is no cooling, a moist towelette cannot achieve its desired cooling effect completely, and at present, towels used in the restaurants have to be cooled in refrigerators where disinfection is not good, and it is easy to cause infection by using such towels and so people are reluctant to use this kind of towel, which is insanitary.

The present invention aims to provide a moist towelette cooling device and method of manufacture thereof, which towelette does not need to be pre-cooled and can be cooled quickly to achieve the purpose of comfortable and convenient cleaning.

The present invention provides a moist towelette cooling device comprising a container having therein a quantity of water and salts in separate compartments and means for mixing the containers and salts, the salt being of a type which produces an endothermic reaction when dissolving in water.

The invention will be further described by way of example, with reference to the accompanying drawings, in which: Figure 1 is a flow chart showing a method of manufacture according to the invention; Figure 2 is a perspective view of an embodiment of the moist towelette cooling device of the present invention; Figure 3 is a view of the embodiment of Fig. 2, unwrapped; and Figure 4 is a sectional view through the embodiment of Fig. 2.

Referring to Figs. 2 to 4, a moist towelette cooling device comprises an inner polyethylene bag 11 containing water 10. The inner bag 10 is sealed inside a packing bag 1 with sodium chloride and ammonium nitrate, in the weight ratio H2O:NaCl: NH4NO3=60:15:25. A moist, perfumed towelette 14 surrounds the packing bag 1, and the complete device is sealed in an outer bag (Fig. 2). The opposed sides of packing bag 1 may be hot pressed to seal them together at points, or to the inner bag 11, to prevent sliding as the inner bag is crushed. When the inner bag is crushed and broken the water and salts mix, resulting in cooling, which cools the surrounding towelette 2 which can then be extracted or opened out for use.

Referring to Fig. 1, absorbent paper (2) of predetermined size is placed around a packing bag 1, and absorbing paper 2 is foided type 3 with round edge of packing bag 1 (in the form of square or other shape), and then instantly hot-pressed to form a bag, with the layer 1 on the inside, at a pressure of 12kg/cm2 and temperature of 100 C-120 C. Perfume 4 is sprayed on the surface of the absorbent paper 2 to achieve the wetting effect, and then 60% by weight water 10 is placed into a polyethylene bag 11 and which is sealed, and then polyethylene bag 11 and 25% by weight (NH4) N03 12 and 15% by weight NaCI 13 are respectively placed into the durable packing bag 1 formed above, let water 10 and (NH4) N03 12 separate and then the opening of the bag is sealed instantly and hot-pressed at a pressure of 12kg/cm2 and temperature of 100 C-120 C 7. The surface of towelette body 14 is applied by the procedure of fixing point, at suitable positions of toweiette body 14, there are hot-pressed fixed points 8 to prevent the two glutinous surfaces of the inner layer of packing bag 1 from sliding freely.

In use, user presses polyethylene bag 11 which is filled with water 10 in order to break it, and the water 10 instantly compounds with the (NH4) N03 12 and NaCI 13, the liquid and solid diffuse and distribute in the whole inner part of the towelette body 14 to match the perfume sprayed on the surface of paper to achieve the wetting action and quickly cool the whole towelette body 14 to provide the auto-cooling effect.

1. A moist towelette cooling device comprising a container having therein a quantity of water and salt in separate compartments and means for mixing the container and salt, the salt being of a type which produces an endothermic reaction when dissolving in water.

2. A device as claimed in claim 1, wherein the means for mixing the water and salt comprises a burstable bag containing the water or salt.

3. A device as claimed in claim 2, wherein the burstable bag contains the water.

4. A device as claimed in claim 2 or 3, wherein the burstable bag and container are of polyethylene.

5. A device as claimed in any one of claims 1 to 4, wherein the salt comprises ammonium nitrate.

6. A device as claimed in claim 5, wherein the salt further comprises sodium chloride.

7. A device as claimed in any one of claims 1 to 6, wherein the container comprises a moist towelette and a polyethylene sheet, the sheet and towelette being folded and sealed to form a water tight bag with the towelette on the outside.

8. A device as claimed in claim 7, wherein the container is hot pressed at a number of points.

9. A moist towelette cooling device, substantially as hereinbefore described with refer

**WARNING** end of DESC field may overlap start of CLMS **.

Claims

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Moist towelette cooling device In the present prosperous society, people generally pay particular attention to personal sanitary habits. Moist towelettes or towels, etc. are necessities in restaurants and elsewhere for people to clean their hands in order to meet usual sanitary requirements. Heretofore, moist towelettes have been put in a refrigerator to be cooled in order to provide a moistening and cooling effect. If there is no cooling, a moist towelette cannot achieve its desired cooling effect completely, and at present, towels used in the restaurants have to be cooled in refrigerators where disinfection is not good, and it is easy to cause infection by using such towels and so people are reluctant to use this kind of towel, which is insanitary. The present invention aims to provide a moist towelette cooling device and method of manufacture thereof, which towelette does not need to be pre-cooled and can be cooled quickly to achieve the purpose of comfortable and convenient cleaning. The present invention provides a moist towelette cooling device comprising a container having therein a quantity of water and salts in separate compartments and means for mixing the containers and salts, the salt being of a type which produces an endothermic reaction when dissolving in water. The invention will be further described by way of example, with reference to the accompanying drawings, in which: Figure 1 is a flow chart showing a method of manufacture according to the invention; Figure 2 is a perspective view of an embodiment of the moist towelette cooling device of the present invention; Figure 3 is a view of the embodiment of Fig. 2, unwrapped; and Figure 4 is a sectional view through the embodiment of Fig. 2. Referring to Figs. 2 to 4, a moist towelette cooling device comprises an inner polyethylene bag 11 containing water 10. The inner bag 10 is sealed inside a packing bag 1 with sodium chloride and ammonium nitrate, in the weight ratio H2O:NaCl: NH4NO3=60:15:25. A moist, perfumed towelette 14 surrounds the packing bag 1, and the complete device is sealed in an outer bag (Fig. 2). The opposed sides of packing bag 1 may be hot pressed to seal them together at points, or to the inner bag 11, to prevent sliding as the inner bag is crushed. When the inner bag is crushed and broken the water and salts mix, resulting in cooling, which cools the surrounding towelette 2 which can then be extracted or opened out for use. Referring to Fig. 1, absorbent paper (2) of predetermined size is placed around a packing bag 1, and absorbing paper 2 is foided type 3 with round edge of packing bag 1 (in the form of square or other shape), and then instantly hot-pressed to form a bag, with the layer 1 on the inside, at a pressure of 12kg/cm2 and temperature of 100 C-120 C. Perfume 4 is sprayed on the surface of the absorbent paper 2 to achieve the wetting effect, and then 60% by weight water 10 is placed into a polyethylene bag 11 and which is sealed, and then polyethylene bag 11 and 25% by weight (NH4) N03 12 and 15% by weight NaCI 13 are respectively placed into the durable packing bag 1 formed above, let water 10 and (NH4) N03 12 separate and then the opening of the bag is sealed instantly and hot-pressed at a pressure of 12kg/cm2 and temperature of 100 C-120 C 7. The surface of towelette body 14 is applied by the procedure of fixing point, at suitable positions of toweiette body 14, there are hot-pressed fixed points 8 to prevent the two glutinous surfaces of the inner layer of packing bag 1 from sliding freely. In use, user presses polyethylene bag 11 which is filled with water 10 in order to break it, and the water 10 instantly compounds with the (NH4) N03 12 and NaCI 13, the liquid and solid diffuse and distribute in the whole inner part of the towelette body 14 to match the perfume sprayed on the surface of paper to achieve the wetting action and quickly cool the whole towelette body 14 to provide the auto-cooling effect. CLAIMS

9. A moist towelette cooling device, substantially as hereinbefore described with refer ence to Figs. 1 to 4 of the accompanying drawings.

10. A method of manufacturing a moist towelette cooling device, comprising folding together and hot pressing a non-porous material and an absorbent sheet to form a bag with the absorbent sheet on the outside, inserting a burstable bag of water and salt into the bag, sealing the bag, and hot pressing the outer bag at a plurality of points substantially to prevent slip of the layers of the bag when breaking the inner bag.

11. A method as claimed in claim 11, wherein the salt comprises sodium chloride and ammonium nitrate in a ratio of 15% NaCI, 25% NH4 NO2 and 60% water.

12. A method of manufacturing a moist towel, substantially as hereinbefore described.