Appeal No. 97-0742
Application 08/427,775
onto the advancing web, and suction means arranged below the
advancing textile web downstream of the printing means” (column
1, lines 45 through 49). The suction means draws the applied
printing medium into the web to ensure sufficient penetration,
thereby enhancing the durability of the printing. As shown in
Figure 5, the suction means 40, 42 is located across from a hood
7 disposed above the advancing textile web. As described by
Mitter,
[t]he hood 7 has an inner wall 72 and an outer wall
72a. The interior space between these walls is filled
with thermally insulating material 70, and located in
it are heating devices, here illustrated as resistance
heating rods 71 which are so positioned as to heat the
inner wall 72. . . .
Tubes 74 are arranged in the interior of the hood
7 and have outlet openings 174 which advantageously are
directed against the inner wall 72. These tubes may be
connected via a conduit L with a boiler W so that they
are supplied with steam which issues through the
openings 174. A thermostat T can be mounted on the
outside of the hood 7 and be provided with a sensor f
that senses the temperature of the inner wall 72; the
thermostat T is connected via the connector A with a
source of electrical energy, as are of course the
heating rods 71. The temperature of the heating rods
71 may be automatically controlled by the thermostat T,
which is connected with them as illustrated, in
dependence upon temperture [sic] changes that are
sensed by the sensor F. Having the openings 174 face
away from the open end of the hood 7, has the advantage
that the steam will be well distributed throughout the
interior of the hood, and the purpose of heating the
inner wall 72 is, of course, to prevent condensation of
the steam on the inner wall 72.
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Last modified: November 3, 2007