Industrial double - needle sewing machines are widely used in jeans pocket sewing for their ability to create neat, durable double - stitch lines. Here is an introduction to related aspects:
Characteristics of Industrial Double - Needle Sewing Machines for Jeans Pocket Sewing
High - efficiency Production: Machines like the PFAFF 3589 can produce up to 1,300 pairs of jeans pockets in 8 hours. It has two machine heads and can use separate colored threads, which not only improves production efficiency but also enables decorative sewing.
Stable Sewing Quality: The JUKI LH - 4500C series, is equipped with a cloth layer detection device. This device can solve problems such as sewing pitch blockage and thread slack during cloth layer sewing. It can also automatically control the number of sewing stitches on the inner and outer sides by inputting needle width and sewing angle information in advance, ensuring that the stitch length is uniform even at the corners and high - low cloth layers.
Operation Steps for Jeans Pocket Sewing
Pre - sewing Preparation: First, select the appropriate industrial double - needle sewing machine according to the thickness and style of the jeans fabric. Then, install the corresponding needles and threads. For example, the PFAFF 3589 uses a 134 suk/serv 7 needle system, and the needle size is 120 - 140 nm. Next, adjust the sewing parameters such as stitch length and needle width according to the design requirements of the jeans pocket.
Sewing Process: Generally, it includes sewing decorative lines on the pocket, folding and ironing the pocket, and then fixing the pocket to the jeans piece. As shown in the production process of jeans back pockets, after sewing the decorative lines on the pocket, use a pocket - pasting template to sew the pocket cloth and fix it on the jeans piece. During the sewing process, pay attention to the operation of the corner - sewing function. For the JUKI LH - 4500C series, operators only need to turn the fabric at the corner of the pocket and perform lever operation at the start of corner - sewing.
Common Models
PFAFF 3589: An automatic jeans pocket - setting machine with two machine heads. It has the characteristics of excellent ergonomics, high productivity, and comfortable operation. The sewing head and hook (xl hook) are synchronized by an electrical axis, and the intermittent material feed reduces hook wear.
Golden Choice Gc2212 - S - At: A fully - automatic double - needle jeans pocket - attaching machine. It has the characteristics of automatic lubrication and automatic ironing and pressing. The maximum sewing thickness is 17 mm, and the production frequency is 280 pieces per hour.
LVBU - 8752D: A double - needle industrial jeans joint sewing machine. It is a post - bed type with a maximum sewing speed of 3500 stitches per minute and a maximum sewing thickness of 5 mm. It is easy to operate and suitable for sewing jeans and uniforms.