and b. Foam , dry (or low temperature drying) is very important. Backpack Flag Banner Small area of fabric can be stacked multi-layer drying rack, a large area of free rope hang dry naturally. To ensure that the silk screen effect, silk screen fabric should not be subject to a high temperature curing and low temperature (not more than
(c) The key process of the foam is "hot hot". Hot pressing iron machine consists of two parts of the electric heating platform and contact platform, you can adjust the temperature and time. The main technical parameters: temperature range 50-300 ° C (manual), controlled range of 0 to 60 seconds (manual) Pressing area of 26 ×
④ fabric foam process.
a. Fabric foam process is as follows:
Designs, drawings, system backplanes – → – → proofing Stretching coated with photosensitive plastic – → transfer ink – → (fabric dyeing and finishing processing, cutting, low-temperature drying of ) foam screen – → – → foam (hot hot) – → test – sewing → – → finished
(b) conditions: Backpack Flag Banner
Head: 80 ~ 120 mesh.
Low-temperature drying temperature: after the end of the foam , usually at room temperature using ventilation (25 ° C), 3 to 4 hours, fabric dry. If baking, the temperature should be below
Hot pressing perm bubble temperature: 115 ~ 125 ° C, visible foam slurry composition and pressure of hot contact surface and appropriate change.
Hot pressing to perm bubble: different fabrics, different designs and different foam requirements to control time of 15 seconds.
The hot pressing iron contact surface: heating platen is usually direct contact with the reverse side of the fabric, so that is conducive to foam hair soft, high-fat. Backpack Flag Banner
Hot hot pressing pressure near atmospheric pressure.
Cooling time: the foam can be fully, without regard to the cooling time.
Affect the quality factors of fabric foam . Fabric foam to achieve both good art appreciation effect, have high practical value, in addition to the design level, the factor is the wide range of operating experience and skill factors, but also have a variety of raw materials and the quality factor .