NL8104418A - METHOD OF CLEANING FOR CLEANING TEXTILE GOODS, MAINLY IN HOUSEHOLD WASHING MACHINES. - Google Patents

Description

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Method for washing for cleaning textile goods, mainly in household washing machines.

The invention relates to a method for cleaning textile goods, mainly in household washing machines.

The textiles are generally washed in hot water, whereby the dirty stains are removed by mechanical movement in the heated water, which also contains a detergent.

This method is also used in automatic washing machines.

According to the known methods used in fully automatic washing machines, a large amount of water is added to the textile goods to be washed, in order to ensure the corresponding washing effect, the water is heated by means of electric energy and the washing is carried out in a heated, containing a lot of water. However, the application of this method requires a lot of energy because of the heating of a large amount of water.

When washing coarser textile products, for example bed linen, towels, etc., h-6 liters of water per kg of textile material are used according to the known method and heated to 90 DEG to 980 DEG C. at 90 °. The modern machines heat 8-15 l water per kg textile material for washing fine fabrics, for example synthetic fibers, at 55-60 ° C. Because of the heating of a large amount of water, 0.5-1 is used in this method. 2 kWh energy for washing 1 kg of textile goods.

25 When washing coarse textiles, in the case of a common application of the pre-wash and the hot-wash cycle, as well as in the washing of fine textiles, in the case of a pre-wash cycle or when washing instead of in a hot-wash cycle at a lower temperature is performed, less energy is used.

In order to reduce energy consumption, efforts are made to reduce the amount and temperature of the water used, but it also reduces the washing effect in both cases.

With too little water, the dirty spots 5 cannot be removed and remain dissolved, at too low a temperature the solution is not strong enough, i.e. the fat spots are not removed. Some components of the detergent, such as the oxidizing bleaches, only work at higher temperatures, above 70 ° C.

10 Certain textile goods require working at a temperature of almost 100 ° C to obtain the desired disinfection.

To reduce energy consumption, such a method is used in automatic washing machines, where instead of washing at 90 ° -95 ° C, the suds are only heated at a temperature of 60-650 ° C and the required washing action with the extension of the washing time is attainable, (Test, 1980. No. L. BRD. "Energieverbrauch groszer Haushaltsge-rate"). In this method one can actually save 30-40% of the energy 20, however, in this case there are the disadvantages of the lowering of the washing temperature, as well as the reduction of the washing effect, and the disinfection being eliminated. For example, this method is only recommended for washing lightly soiled textiles.

The object of the invention is to provide a washing method which is mainly applicable in fully automatic washing machines, in which the energy consumption can be reduced in comparison with the known methods, while still having the desired washing effect and, if desired, the disinfection and boiling is achieved.

This is obtained according to the invention by applying the measures below.

a) For the cleaning of coarser textile goods, 2.0-3.5 liters of tap water 35 per kg of tertile material are added in the presence of a detergent, the system being heated to a temperature of 8104418-3 ° C, the textile goods during heating or after reaching the desired ten-. . washed at rature for 50-90 minutes, with the system optionally supplied with a larger amount of a detergent 2.0-3.5 1 tap water per kg of textile material and the textile goods being further washed for 5-30 minutes; or 3.0-7.0 1 tap water per kg of textile material is supplied for cleaning fine textile goods in the presence of a detergent, the system being heated to a temperature of H0-60 ° C 10 and the textile goods being heated during heating , resp. after reaching the desired temperature, they are washed together for 50-90 minutes, after which 2.0-3.5 l of tap water per kg of textile material is added to the system, optionally with the addition of a larger amount of detergent, and the textile materials 5 Continue to wash for 30 minutes; or b) 0-7.0 1 tap water per kg of textile is supplied for cleaning fine textile goods in the presence of a detergent U, the system being heated to a temperature of U0-60 ° C and the textile goods during heating , resp. after reaching the desired temperature, they are washed together for 50-90 minutes, after which 0-7.0 1 tap water per kg of textile material is added to the system, optionally with the addition of one of a larger quantity / detergent, and the textile goods are Wash for 30 minutes more.

During the first phase of the washing, less energy is needed to heat the small amount of water, and the solution of the dirty stains, which can be removed at higher temperatures, the effect of the oxidizing bleach and the disinfectant boiling can be used for the coarser textile goods. -30 guarantee.

In the second phase of washing, the dirty stains can be kept in solution by the addition of a larger amount of water and, optionally, of a detergent in a large raft ratio, and avoiding creasing.

35 During washing, the textile goods 8104418 β «ζ '- U - are moved naturally and the washing is carried out long enough.

After washing, the textile goods are rinsed in a known manner.

The method according to the invention can, if desired, be supplemented with a pre-washing if the coarse dirty stains, such as dust, soot etc., are removed and the dirty stains of the textile goods are loosened by soaking.

In the first phase of the method according to the invention, the washing water can be heated continuously or continuously.

The continuous heating is. at the application. The use of biologically active, enzyme-containing detergent compositions is advantageous, since the detergent temperature must be kept between 50 DEG-5 DEG C. for a longer period of time with these detergent compositions.

After heating the water supplied in the first phase, the dilution, the supply of a larger amount of water can be carried out continuously or continuously, and only to guarantee or increase the temperature reached by stirring, the water can also be heated. A good washing effect can be obtained when washing coarse textile goods at temperatures between 55-75 ° C and of fine textile goods at temperatures between 35-50 ° C.

In washing machines suitable for absorbing warm industrial water, water with a temperature of 25 ° -0 ° C can be supplied instead of cold tap water in both the first and the second phase.

In the method according to the invention the energy required for heating the washing water is 20% less than in the known methods.

Despite the smaller energy consumption, a good washing effect is obtained in the method according to the invention due to the heat effect of the first phase and the large raft ratio of the second phase. The method can be used in household drum machines, in public institutions, as well as in industrial automatic washing machines.

The invention will now be further elucidated by means of the following examples.

8104418 - 5 -

Example 1

The greasing of moderately soiled bed linen in fully automatic washing machines.

In a washing machine operating according to the known and conventionally used method, 18 l tap water and 90 g detergent are added to b.5 kg bed linen, then the water is heated to 95 ° C. The washing drum exerts a washing motion during and after heating. After completing the washing, the built-in pump sucks the suds away, followed by a five-time 10 rinse, together in 95 1 water.

After this process, disinfected and very clean textile goods are obtained. The energy consumption is 2.62 KWh, which corresponds to 0.58 KWh / kg of textile goods.

The method according to the invention was used in the same machine, in which first 9 liters of water and 90 g of detergent were added to 0.5 kg of bed linen.

The water is heated to 95 ° C, while and afterwards the washing drum performs a washing movement (reversing}) for 80 minutes.

Then, to the heated water of about 95 ° C 1G 1 cold tap water, of about 16 ° C, is added and washing is continued for 25 minutes. After washing, as above, the rinsing takes place.

As above, this method produces very clean and disinfected textile goods. The energy consumption is 1.9T KWh, which corresponds to 0.h-U KWh / kg of textile goods.

At the same washing effect, the energy consumption in the method of the invention is 2U, $ 8 less than 30 in the known method.

Example 2

Washing men's shirts.

In a fully automatic washing machine, 8 men's shirts, about 2 kg, are washed according to the method according to the invention.

8104418 - 6 -

15 l of water and a biologically active detergent are added to the textile goods. The water becomes all-. first heated to 0 ° C and the textiles are soaked in this water for 30 minutes, then the water is heated to a temperature of 55 ° -6 ° C and the textiles are washed for 15 minutes. The suds are then diluted with the addition of tap water and the washing in this aqueous medium is ended after 15 minutes.

The energy consumption is 1.07 KWh. The laundry . 10 is very clean and wrinkle-free.

The automatic washing machine operating according to the known method heats 1 water for washing 8 men's shirts at a soaking temperature of 50 ° G, then at a temperature of 55-60 ° C and at the same time of washing 15 the energy consumption is 1.70 KWh. This is 37 # more than the energy consumption in the method according to the invention.

Example 3

Washing coarse textile goods with the energy-saving method.

Instead of a cooking cycle, kg of moderately soiled textiles, towels, bed linen, etc., are washed using the energy-saving method described above. The washing machine takes in 18 1 tap water, which is heated to 6θ ° C. 90 g of a detergent are used and the drum performs the washing motion for 110 minutes. After the washing has ended, very clean textile goods are not obtained, which are not disinfected.

The energy consumption is 1.95 KWh.

When the method according to example 1 is used instead of this method, the energy consumption is. equal to 1.97 KWh, but the textile goods are disinfected after washing and very clean.

Example U

Comparison of the method according to the invention and the known method according to MSZ 810 / IEC Publ. l * 50.

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The method of Example 1 and the known method are compared. With these methods, U, 5 kg. textile goods according to MSZ 20 810 / IEC Publ. k50, as well as test patches EMPA 101 washed. The amount of water used for washing and that of the detergent are equal to that of Example 1.

ITa washing becomes the result of washing according to MSZ 20 810 / IEC Publ. k50 determined with a Zeiss leukometer. In the known method, the washing effect is 36.6 $ and the energy consumption is 2.62 KWh.

In the method according to the invention, the washing effect is 37.9 $, the energy consumption is 1.97 KWh, which is 2b, 8 $ less than that in the known method.

8104418

Claims (7)

1. Method for washing and cleaning textile goods, mainly in household washing machines, characterized in that a) for cleaning "coarser" textile goods in the presence of a detergent 2.0-3.5 1 tap water per kg textile material. It is well fed that the system is heated to a temperature of 60-100 ° C, and that the textile goods are washed together for 50-90 minutes during the heating or after the preparation of the desired temperature, which is then optionally subjected to the system 10. addition of a larger amount of a detergent 2.0-3.5 l of tap water per kg of textile goods is fed and the textile goods are further washed for 5-30 minutes; od at B) For cleaning fine textile goods in the presence of a detergent, 4.0-7.0 1 tap water per kg of textile material is supplied, that the system is heated to a temperature of 40-60 ° C, and that the textiles are washed together for 50-90 minutes during heating or after reaching the desired temperature, and then, if necessary, adding 4.0-7.0 l of tap water to the system with the addition of a larger amount of detergent, and that the textile goods are washed for another 5-30 minutes. 2. A method according to claim 1, characterized in that the water supplied in the first phase of the method is heated continuously or continuously at the washing temperature. A method according to claim 1 or 2, characterized in that the water introduced and heated in the first phase of the method is cooled with tap water supplied continuously or continuously. 4. Process according to any one of claims 1-3, 30, characterized in that in the first and / or second phase of the process water is supplied with a temperature of 25-40 ° C. A method according to any one of claims 1-4, characterized in that in the second phase of the method, cool water is heated in the first method a) at a temperature of 55 - 75 ° C, and in the second method B ) is heated to a temperature 8104418 - 9 - * - -X of 35 - 50 ° C. 6. Method for washing and cleaning textile goods, substantially as indicated in the description and / or shown in the drawing. 8104418 «y · *> - / ö · - Improvement of errata in the description associated with patent application No. 8104418 Ned, proposed by application dd. January 25, 1982___ Pages. 6, line 35 and p. 7, lines 3 and 8, delete "MSZ20810" and change "Publ 450" to "Publ 456". 8104418