Page 211 - Industrial Cutting of Textile Materials

198 Industrial Cutting of Textile Materials

transition of the thermoplastic adhesive into the face fabric structure and provides the
uniformity of joint parts. One or two pairs of large-diameter pressure rollers assure
stable and equal pressure. Pressure rollers can be controlled and adjusted separately.
The pressure is usually generated pneumatically. It depends on the properties of the
face fabric and interlining used. Most fusing presses use silicone or rubber-coated
pressure rollers to ensure a uniform and larger area of pressure and absorb minor dif-
ferences of thickness within the material or between the material layers. The fusing
presses can be equipped with single- or double-pressure systems depending on their
application:
Single-pressure systems: Pressure system from two silicone-cover pressure rollers is
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called standard/single-pressure system or soft pressure system. It is most often used pres-
sure system processing wide range of light- and medium-weight fabrics. By fusing shirt
components and processing hard interlinings and fabrics from highly twisted yarn, the
single-pressure system can be designed with one roller with a silicone cover and one
2
hard roller (the company Veit Group calls it ‘medium pressure system’) to force well
4
the adhesive into the face fabric structure. The company Martin Group has developed
single-pressure system with rollers covered with two different layers of silicone to per-
form more gentle fabric pressing.
Double-pressure systems: To increase fusing quality processing difficult fabrics and enlarge
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1
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the application of the press, the companies Veit Group and Meyer manufacture fusing
presses with two pairs of pressure rolls. The press can be equipped with two standard/soft
pressure systems (two couples of silicone-covered pressure rollers or one air-filled roller and
three silicone-covered rollers) to ensure more gentle pressing of pressure-sensitive fabrics or
one soft and one medium (one soft roll and one hard pressure roll) pressure systems to pro-
cess fabrics and interlinings with different qualities. Both pressure systems can be adjusted
individually or synchronized.
12.3.2.4 Cooling system

After fusing, the components must be cooled to stabilize the fusing effect, to maintain
their permanent shape, and to prevent deformation during the unloading process. The
cooling process can be performed on the exit conveyor belt that moves the components
to an unloading place or by using special cooling conveyors with air-blowing or vac-
uum systems or water-cooled pressing plates.

12.3.2.5 Additional equipment
Fusing presses can be enhanced by a variety of additional equipment, such as the
following:
Feeding conveyors with several loading belts that are positioned on the front of a fusing
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press to create ergonomic workplaces and increase productivity.
Semiautomated and fully automated collection stackers that stack fused components.
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Return belts that return the fused components to the front of the press when only one opera-
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tor is working with the machine.
Waistband fusing devices to fuse long and narrow waistband rolls.
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Barcode scanners/printers.
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