Article
Material quality observation
Fabrics and linings: materials used for the exterior and interior of bags. Surface of bai: the fabric should not be drawn, the stripes of the yarn should be clear and the color should be uniform, the number of horizontal and straight lines of the yarn should be enough, the thickness of the yarn should be enough, and the yarn should be straight (use a measuring instrument to test); rubber bottom: the glue will not be firm Ungummed bottom, the rubber bottom will not whiten (it will not whiten after being grasped by hand, keep the original rubber background color); force: use the horizontal and straight direction to merge the car so that it will not crack after pulling it hard. Colored materials should also pay attention to whether there are reinforced colors, especially for bright colors, it is more likely to produce dyeing phenomenon, the color matching is not good enough that the finished product finds everything is too late!
Foam and sponge: It is mostly used between the fabric and lining of the bag, and the finished bag cannot be seen. It mainly depends on whether the thick bottom and density are enough (whether one square has enough weight). Good cotton is elastic and not easy to pull.
Net material: It must be elastic, strong, not easy to break, and no yarn breakage.
Webbing: There are many types of webbing, such as plain weave, fine grain, pit pattern, etc., but each type of webbing with different specifications has a standard weight. Look from the outside to see if the edges are smooth, the surface is even, and there is no fuzz, no drawing, no dyeing, etc.
Zipper: The quality of the chain cloth and the slider is mainly distinguished by grade: such as A, B, C grades, the higher the grade, the better the quality. The specifications are distinguished by size numbers: such as No. 3, No. 5, No. 8, and No. 10, etc. The larger the number, the larger the specification. Each type of zipper has a standard weight, and weight is also the key to quality. From the outside, the main attention: the pull should be smooth, and there should be no unsmooth feeling, the sound is not very loud when pulling, and the zipper teeth can be pulled by hand and it is not easy to explode. Besides, the slider also has large and small bottoms. It is not easy to pull between the slider and the pull tab. The pull tab must be firm, not easy to pull, deform, etc. At the same time, pay attention to whether there is a reinforcement color level for the colored zipper. So as not to easily produce dyeing with the fabric, the consequences will be serious.
Bag fabric knowledge
Bag materials are generally divided into main materials and accessories. The main materials can be divided into:
The composition of the cloth is: glue
yarn:
Definition of yarn denier number (fixed length):
Take a yarn of 9000 meters long, if it weighs 70G, it is called 70D, and 210G is called 210D, and so on.The higher the Denny number, the thicker the yarn and the thicker the cloth (usually used for long-fiber yarn).
Definition of yarn count:
Take 1 pound of yarn, its length is several times as long as 840 yards, it is called a few yarns, if the length is 10 times as long as 840 yards, it is called 10 yarns, and if it is 20 times as long as 840 yards, it is called 20 count yarn, and so on, the larger the count, the finer the yarn (usually used for spun yarn).
Type of yarn:
A. According to the material:
1.Natural fiber:
1) Plant fiber: cotton (COTTON) hemp (JUTE, LINEN, RAMIE)
2) Animal fiber: wool (WOOL) silk (SILK)
2. Synthetic fiber:
Nylon (Nylon) (NYLON) Tetoron (Polyester) (POLYESTER also called TETRON) Acrylic (ACRYLIC) Polypropylene (PP) Polyethylene (PE)
3.Man-made fibers:
Rayon (RAYON) is also called rayon, rayon (VISCOSE)
4. Blended fiber:
Long/short fiber blended yarn, there are two kinds of T/R T/C
B. Divided by brightness: semi-gloss yarn / bright yarn / triangle bright yarn
According to processing points:
1. Raw silk (unprocessed): UDY (no extension) POY (half extension) FOY (full extension)
2. Processing wire
3. Spinning
4. Furoshiki
D. According to the number of yarn strands: single strand, double strand, multiple strand
Discrimination of yarn material:
1. Cotton: Burn immediately, the flame is stable, gradually extinguished, white smoke, burnt smell, gray ashes, SOFT.
2. Lingying: burn immediately, flame is stable, extinguished immediately, white smoke, burning smell, no ash, SOFT.
3.Nylon: first shrink, curl and melt, then gradually burn, raw white smoke, like celery, gray, hard and shiny.
4. Tetoron: first shrink, curl, melt, burn gradually, produce black smoke, smell, black lumps, dull.
5. PE:: first shrink, curl and melt and then burn immediately, raw black smoke, paraffin smell, yellow-brown hard.
6.PP: first melts and then burns quickly, the flame is beating, black smoke, pungent smell, black irregular lumps.
Fabric:
A. According to the weaving method (different looms):
1. Knitted cloth: Mesh cloth, Mega cloth, plush, shearing, wear-resistant cloth KEVLA L
2. Plain woven fabric: Tufta Oxford cloth CORDURA BALLISTIC.
3. Twill: 3/1 twill, 2/2 twill, large twill, cross jacquard, plaid, satin cloth
4. Jacquard cloth: colored gauze check cloth curtain cloth LOGO jacquard bed sheet table cloth
5. Non-woven fabric: Lixin cloth needle ginned cotton (pay attention to thickness/weight/texture/color)
Plain weave, twill, and jacquard fabrics are all cross-woven up and down by warp and weft yarns to form their fabric structure. Different warp and weft yarn materials/numbers and weaving methods can change a variety of different specifications of cloth. Its specification expression method for:
420D (warp denier number)*420D (weft denier number)/50T (warp yarn number)*36T (weft yarn number) knitted fabric is knitted by warp and weft yarns in a loop, usually divided into warp There are two kinds of knitting and weft knitting. The specifications are often expressed in denier number/yard weight/width.
Common specifications of nylon cloth:
70D: 70D*170T+PU1 70D*190T+0.3MM PVC 70D diamond grid+PU2+WR/
210D:210D*116T+PU1 210D*116T+PU2
Fabrics and linings: materials used for the exterior and interior of bags. Surface of bai: the fabric should not be drawn, the stripes of the yarn should be clear and the color should be uniform, the number of horizontal and straight lines of the yarn should be enough, the thickness of the yarn should be enough, and the yarn should be straight (use a measuring instrument to test); rubber bottom: the glue will not be firm Ungummed bottom, the rubber bottom will not whiten (it will not whiten after being grasped by hand, keep the original rubber background color); force: use the horizontal and straight direction to merge the car so that it will not crack after pulling it hard. Colored materials should also pay attention to whether there are reinforced colors, especially for bright colors, it is more likely to produce dyeing phenomenon, the color matching is not good enough that the finished product finds everything is too late!
Foam and sponge: It is mostly used between the fabric and lining of the bag, and the finished bag cannot be seen. It mainly depends on whether the thick bottom and density are enough (whether one square has enough weight). Good cotton is elastic and not easy to pull.
Net material: It must be elastic, strong, not easy to break, and no yarn breakage.
Webbing: There are many types of webbing, such as plain weave, fine grain, pit pattern, etc., but each type of webbing with different specifications has a standard weight. Look from the outside to see if the edges are smooth, the surface is even, and there is no fuzz, no drawing, no dyeing, etc.
Zipper: The quality of the chain cloth and the slider is mainly distinguished by grade: such as A, B, C grades, the higher the grade, the better the quality. The specifications are distinguished by size numbers: such as No. 3, No. 5, No. 8, and No. 10, etc. The larger the number, the larger the specification. Each type of zipper has a standard weight, and weight is also the key to quality. From the outside, the main attention: the pull should be smooth, and there should be no unsmooth feeling, the sound is not very loud when pulling, and the zipper teeth can be pulled by hand and it is not easy to explode. Besides, the slider also has large and small bottoms. It is not easy to pull between the slider and the pull tab. The pull tab must be firm, not easy to pull, deform, etc. At the same time, pay attention to whether there is a reinforcement color level for the colored zipper. So as not to easily produce dyeing with the fabric, the consequences will be serious.
Bag fabric knowledge
Bag materials are generally divided into main materials and accessories. The main materials can be divided into:
The composition of the cloth is: glue
yarn:
Definition of yarn denier number (fixed length):
Take a yarn of 9000 meters long, if it weighs 70G, it is called 70D, and 210G is called 210D, and so on.The higher the Denny number, the thicker the yarn and the thicker the cloth (usually used for long-fiber yarn).
Definition of yarn count:
Take 1 pound of yarn, its length is several times as long as 840 yards, it is called a few yarns, if the length is 10 times as long as 840 yards, it is called 10 yarns, and if it is 20 times as long as 840 yards, it is called 20 count yarn, and so on, the larger the count, the finer the yarn (usually used for spun yarn).
Type of yarn:
A. According to the material:
1.Natural fiber:
1) Plant fiber: cotton (COTTON) hemp (JUTE, LINEN, RAMIE)
2) Animal fiber: wool (WOOL) silk (SILK)
2. Synthetic fiber:
Nylon (Nylon) (NYLON) Tetoron (Polyester) (POLYESTER also called TETRON) Acrylic (ACRYLIC) Polypropylene (PP) Polyethylene (PE)
3.Man-made fibers:
Rayon (RAYON) is also called rayon, rayon (VISCOSE)
4. Blended fiber:
Long/short fiber blended yarn, there are two kinds of T/R T/C
B. Divided by brightness: semi-gloss yarn / bright yarn / triangle bright yarn
According to processing points:
1. Raw silk (unprocessed): UDY (no extension) POY (half extension) FOY (full extension)
2. Processing wire
3. Spinning
4. Furoshiki
D. According to the number of yarn strands: single strand, double strand, multiple strand
Discrimination of yarn material:
1. Cotton: Burn immediately, the flame is stable, gradually extinguished, white smoke, burnt smell, gray ashes, SOFT.
2. Lingying: burn immediately, flame is stable, extinguished immediately, white smoke, burning smell, no ash, SOFT.
3.Nylon: first shrink, curl and melt, then gradually burn, raw white smoke, like celery, gray, hard and shiny.
4. Tetoron: first shrink, curl, melt, burn gradually, produce black smoke, smell, black lumps, dull.
5. PE:: first shrink, curl and melt and then burn immediately, raw black smoke, paraffin smell, yellow-brown hard.
6.PP: first melts and then burns quickly, the flame is beating, black smoke, pungent smell, black irregular lumps.
Fabric:
A. According to the weaving method (different looms):
1. Knitted cloth: Mesh cloth, Mega cloth, plush, shearing, wear-resistant cloth KEVLA L
2. Plain woven fabric: Tufta Oxford cloth CORDURA BALLISTIC.
3. Twill: 3/1 twill, 2/2 twill, large twill, cross jacquard, plaid, satin cloth
4. Jacquard cloth: colored gauze check cloth curtain cloth LOGO jacquard bed sheet table cloth
5. Non-woven fabric: Lixin cloth needle ginned cotton (pay attention to thickness/weight/texture/color)
Plain weave, twill, and jacquard fabrics are all cross-woven up and down by warp and weft yarns to form their fabric structure. Different warp and weft yarn materials/numbers and weaving methods can change a variety of different specifications of cloth. Its specification expression method for:
420D (warp denier number)*420D (weft denier number)/50T (warp yarn number)*36T (weft yarn number) knitted fabric is knitted by warp and weft yarns in a loop, usually divided into warp There are two kinds of knitting and weft knitting. The specifications are often expressed in denier number/yard weight/width.
Common specifications of nylon cloth:
70D: 70D*170T+PU1 70D*190T+0.3MM PVC 70D diamond grid+PU2+WR/
210D:210D*116T+PU1 210D*116T+PU2
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