Can stretch fabric be used to make sofa covers?

Making sofa covers with stretch fabric is a functional innovation, but it requires targeted design to avoid defects. The following are the key points:

1. The stretch direction is forcibly matched with the sofa shape
Right angle sofa: * Unidirectional longitudinal stretch fabric (only vertically stretched), avoiding creases at the front edge of the seat cushion
Curved sofa: * Must use warp knitted four-way stretch (stretch rate ≥ 30%), otherwise the armrest surface will crack the stitching
Noble Consort's Bed: *  Disable ordinary stretch fabric and use "segmented composite technology" - use micro stretch velvet fabric for backrest and high stretch mesh fabric for lying down position

2. Three layer composite structure solves core defects

3. Deadly detail remediation process
Seat cushion collapse: Pre embedded polyester spiral reinforcement (diameter 0.8mm) at the seat cushion seam to form an invisible support skeleton
Armrest deformation: oblique cutting at 45 °+embedded stretch memory steel wire during cutting, suitable for repeated elbow compression
Corner bursting thread: using the "three thread chain+core rope" sewing method, the sewing thread extends synchronously during stretching

4. Prohibited usage scenarios
*  Classical carved sofa (stretch fabric highlights the unevenness of the wooden frame → "tumor like" bulging)
*  Direct sunlight area (spandex powder under UV light for three months)
*  Frequent disassembly and washing (stretchity decreases by 40% after 5 washes)

5. Special upgrade plan
Pet home: surface composite Kevlar microfiber (anti scratch and puncture), bottom layer with lead particles for weight distribution and anti overturning
Children's family: Adding conductive yarn (≤ 5V microcurrent), automatically triggers hydrophobic effect when encountering liquid stains
Luxury Mansion Exhibition Hall: Using intelligent color changing stretch leather, the temperature contact produces ink and wash blending effect