Dry transfer of organic compounds to webs

Claim 1

A process for the continuous, dry transfer of an organic compound to a web of air-permeable organic textile material, comprising, the steps of 1. applying to a carrier a preparation which contains at least one organic compound that is converted into the vapour state at atmospheric pressure and at a temperature above 80° C, 2. bringing said carrier into contact with a side of the air-permeable web of organic textile material to be treated, in such a manner that web and carrier advance together synchronously, the one superimposed on the other, 3. subjecting carrier and web under atmospheric pressure to a heat treatment in a heating zone of at least 80° C sufficient to raise the temperature of the web to the temperature at which the organic compound is converted to the vapour state, said heat treatment being applied from the carrier side, 4. advancing said carrier and web from the heating zone and subsequently into a suction zone and subjecting said carrier and web to a suction treatment applied from the web side until the organic compound has been transferred from the carrier to the textile web, and 5. separating the treated web from the carrier.

Claim 16

An apparatus for carrying out a continuous, dry transfer of an organic compound to a web of air-permeable organic textile material, which comprises a. a web-shaped carrier which advances in the longitudinal direction, b. a means for applying an organic compound to the carrier, and moving said organic compound applied to said means in the direction of carrier travel, c. a sequence of a heating unit and a suction unit and d. a means for conveying a web of organic textile material to the carrier and a means for transporting the treated textile web away from the carrier again, said apparatus being so constructed that carrier and textile web advance together synchronously, the one superimposed on the other, and are together transported first the the heating unit the carrier next to the heating unit and subsequently to the suction unit with the web next to the suction unit where the organic compound is transferred from the carrier to the textile web at a temperature above 80° C, before web and carrier are separated from each other.

Claim 17

An apparatus for carrying out a continuous, dry transfer of an organic compound to a web of air-permeable organic textile material, which comprises a. a web-shaped carrier which advances in the longitudinal direction, b. a means for applying an organic compound to the carrier, and moving said organic compound applied to said means in the direction of carrier travel, c. a sequence of a heating unit and a suction unit and d. a means for conveying a web of organic textile material to the carrier and a means for transporting the treated textile web away from the carrier again, said apparatus being so constructed that carrier and textile web advance together synchronously, the one superimposed on the other, and are together transported first the the heating unit the carrier next to the heating unit and subsequently to the suction unit with the web next to the suction unit where the organic compound is transferred from the carrier to the textile web at a temperature above 80° C, before web and carrier are separated from each other.