Stitching of leather and other materials with a closed structure
Leather, paper & plastics are materials, which on account of their closed structure can only be stitched using cutting-point needles. Schmetz has carefully developed needles with cutting points for numerous applications, e.g.
The leather processing industry with the sectors:
Ø Garment making
Ø Footwear manufacture
Ø Accessories / Bags / Belts.
Ø Upholstry industry
Ø Manufacturers of vehicle interiors (car,aircraft,trains etc.)
The plastic processing industry with the sectors:
Ø Manufacturers of vehicle interiors ( car,aircraft,trains etc)
Ø Footwear manufacture
Ø Accessories / Bags
The hard-fibre processing industry with the sectors:
Ø Manufacturers of vehicle interiors ( car,aircraft,trains etc)
Ø Upholstry industry
Characteristics and benefits of needles with cutting points.
Ø Realisation of a specific seam appearance
Ø Easier penetration of the material with less needle heating.
Selecting the right needle.
The desired quality of the end product & optimum production can only be guaranteed by timely consideration of the correct type of needle to be used.The determinating factors for the appropriate point form and needle size are already defined when designing the model by selecting the following:
Ø The stitching technique and the seam appearance.
Ø The material and material properties (Thickness, Tannage, Finishing)
Ø The thread
Choosing the right needle size
The stitching technique and the choice of thread determine the needle size:
Two essential criteria must be taken into account:
1.Thread / seam appearance
The needle size is determined by the thickness of the thread and the desired seam appearance.
2.Material and material properties
The harder and thicker the material, the thicker the needle must be.