“Car Line” of Luggage Materials

In terms of bag making, the
production process is a very complex process, and if the production of a bag
needs to be completed, many processes need to be coordinated and produced, and
each process in this process is very important.  If there is a process that is
not done well, the bag will be of little use, so every process involved in bag
making is very important. Car lines are very important for making bags to
maintain the shape, and Jonah Leather Goods is very particular about using
lines.

Commonly used threads for
handbags are cotton thread, transparent thread (fish silk thread), nylon
thread, three-strand nylon decorative thread, etc. The quality of nylon thread
is the best, and the thread of this material will be used in general leather
bags. There are different thicknesses of thread, if you want to sew more
firmly, use a thicker thread. The strength and thickness of the thread can
indirectly reflect the shape of the overall bag. On the contrary, the thread of
the poor product is thinner, which is easy to break without light feeling, and
even the angle of the sewing stitch is unstable.

The outer part of the bag
body generally uses thicker nylon thread, the inner part generally uses thinner
nylon thread, and the inner lining generally uses cotton thread. The color of
each part of the car line is required to match the color of the fabric,
visually consistent, and the car line is smooth and tidy. The stitches of the
higher-grade bags are relatively fine, and if they are too sparse, the tear
strength will be affected. The stitch density requirement of the handbag
industry is “one inch seven and a half needles”, and Qiao Na Leather
Co., Ltd. strictly follows this standard in the production of goods.

· Detailed explanation of car line classification

1. 402 polyester thread
(polyester-cotton thread) open thread is generally used for denser and thinner
materials, or for positioning, the normal open thread pitch is: 3CM9.5 needle;
dark thread is: 3CM9 needle; positioning is: 3CM9 needle ± 1 Needle.

2. 202 polyester thread
(polyester-cotton thread) is very commonly used, and boutique bags are
generally used for car lining or positioning. Generally, the needle distance of
the open thread is: 3CM9 needle; the dark thread is: 3CM8.5 needle; the
positioning is: 3CM8 needle ± 1 Needle.

3. 210D nylon (high-strength
thread) is generally used for boutique and high-end bags, and is mostly used on
the surface of bags. Generally, the needle distance of open thread is: 3CM9
needle; the dark thread is: 3CM8.5 needle.

4. 500D nylon (high-strength
thread), commonly used in boutique bags with PU artificial leather and surfaces
that need to be decorated with thread, generally PU and canvas needles are 3CM8
needles, and fabrics are 3CM8.5 needles.