CONCEPTOS BASICOS Flashcards
What does the ISO 4915 standard regulate?
Standardizes and regulates all machines and stitches for production processes
Norma
Why was the ISO 4915 standard created?
To avoid comprehension problems due to language differences
What is the military equivalent of the ISO 4915 standard?
FEDERAL STANDARD 751ª
When was the FEDERAL STANDARD 751ª created?
1926
What is ASTM-D6193 specifically for?
Processes for institutional/industrial garments
True or False: All standards mentioned in the document are identical.
True
What types of unions are not covered by the ISO 4915 standard?
Unions used in ‘NO SEWN’ garments
How are ‘NO SEWN’ garments produced?
By fusion with special tapes activated by heat
What is a stitch?
Interlacing or intertwining of one or several sewing threads in a specific repetition unit
entrelazado, interlazado e intralazado
What is the action of joining one or more fabrics using stitches called?
Sewing
costura
Define ‘Intralazada’.
Passing one loop of thread through another loop of the same thread
Define ‘Interlazada’.
Passing one loop of thread through another loop formed by a different thread
Define ‘Entrelazada’.
Passing one thread over or around another thread or loop
How many main groups are stitches divided into?
6 main groups plus 2 additional ones
What are the elements used for stitch classification?
Tomador de la lazada and formación de la lazada
What identifies each type of stitch?
Three-digit numeric code
What does the first digit of the stitch code represent?
Type of stitch
What do the last two digits of the stitch code indicate?
Combinations of that stitch based on needles and threads used
