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A method of controlling the moistening and drying of garment Disclosure Number: IPCOM000021705D
Publication Date: 2004-Feb-04
Document File: 2 page(s) / 159K

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The Prior Art Database



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A method of controlling the moistening and drying garment


The known garment moistening means

/ methods

in irons include spray

of water, spray


   and 5 steam



an iron with spray

of water, water

is sucked

up from

a water reservoir


a pump unit and sprayed out. Typically the spray quality

is affected by the

operator's skill

and a

homogeneous moistening difficult

to achieve.

In an iron with spray

of mist or mist-steam, pressurized

air or

steam is used as a

carrier to deliver the water onto the garment in the

form of fine water drops. Such systems normally

use a

nozzle, operating under certain required



or steam pressure,

to atomize

the carried water (usually being mixed with

air or

steam in a

passage) into mist

or mist-steam. Compared

to spray of water, the mist

a more homogeneous moistening

of fabric.

An iron, which is able

to produce mist-steam, 15 is known from US2762143A.

Steam ironing

  i s well known. During ironing steam penetrates into

   th e fabric making

   th e removal

  o f

wrinkles easier

in the

subsequent ironing strokes.

In EP753091B, the steam production

      is made 20 dependent



the temperature


the fabric

by means


a temperature sensor embedded



in contact with

the fabric


a temperature sensitive surface during ironing.

The steam is stopped when

the fabric temperature reaches

condensing temperature

of steam so as to

avoid waste of water and power. However, steam moistening

is insufficient/unsatisfactory as far as

damping fabrics for wrinkle removal

is concerned due to its

very limited condensation

     and wastage during 25 ironing.

The main function

of steam



the fabric

for drying.


to heat


the other hand,

the contact temperature sensor depends

on the

heat transfer between

the sensing point

and fabric, which normally result

in delay in response time. Furthermore,

the embedded temperature sensor

   the soleplate has the

difficulty to detect the right fabric temperature

due to the

very hot surrounding temperature from

the extremely

hot soleplate.

30It is clear from above that to moisten fabric,

a spray of mist preferred; while

   dry the fabric, steam is very effective.

The inventors also found that

the right amount

of moisture should

be applied



beginning of the

ironing process for a

good and effective ironing performance.

To provide the convenience rather than add in

extra effort,

the moisture should

be applied in the

     first ironing stroke(s) 35 when the iron

is sliding over garment. During

the second

or sequential strokes

it is

not necessary to apply more moisture. Instead

dry or

superheated steam should

be applied to increase the fab...