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They are temperature-resistant up to 120 °C (248 °F). Bonded polyester sewing threads are tough, coated with abrasion resistance, rot proofing, and have exceptional tensile strength for lower temperatures but heavier-duty sewing operations. They are temperature-resistant up to 120 °C (248 °F).
The heat setting process takes place at temperatures between 110 °C and 200 °C in a steam-air-mix. After heat setting, the yarn is cooled and wound onto packages again at the winder. In general a heat setting machine consists of six lines at eight ends (fibers) each. A daily production of up to 10.5 tons is possible.
So that practical clothing may be described conveniently by a range of small integers, the unit of thermal resistance, to be called the “tog”, is the resistance that will maintain a temperature difference of 0.1°C. with a flux of 1 watt per square metre, or in more practical terms, 10°C. with a flux of 1 watt per square decimetre.
Polybutylene terephthalate (PBT) is a thermoplastic engineering polymer that is used as an insulator in the electrical and electronics industries. [2] It is a thermoplastic (semi-)crystalline polymer, and a type of polyester.
Valentina is an open source pattern drafting software tool, designed to be the foundation of a new stack of open source tools to remake the garment industry. [5] The program was named after mother of the founder Roman Telezhinsky, a cutter by profession, who gave him the idea for the project.
The heat distortion temperature is determined by the following test procedure outlined in ASTM D648. The test specimen is loaded in three-point bending in the edgewise direction. The outer fiber stress used for testing is either 0.455 MPa or 1.82 MPa, and the temperature is increased at 2 °C/min until the specimen deflects 0.25 mm.
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Embroidery software is software that helps users create embroidery designs. While a large majority of embroidery software is specific to machine embroidery , there is also software available for use with hand embroidery techniques, such as cross-stitch .