What does the T in umbrella fabric mean?
Keyword:Umbrella fabric Addtime:2020-07-28
When customizing umbrellas, you often hear about the need for T-density fabrics. Today, Green Park Umbrella Factory and you can discuss what this T means in the end
The more common fabric is 190T.
T means density (the sum of the warp and weft density within 1 square inch) is the knitted density of the fabric
Measurement method: Use the density mirror to measure the warp density + weft density, multiply by 2.54 to equal the T number.
170T is the worst specification, generally we do not recommend customers to use, but some customers just to save money to save costs will also be used. However, 190T is almost as bad!
What does the D in 300D stand for?
D stands for Denier, which means the thickness of the thread (the amount of grams of fibre in a 9000m length at a nominal moisture return rate).
What is the essential difference between T and D?
T is for density and D is for thread thickness.
Generally T is used for polyester spinning and D for oxford spinning.
2. Sometimes 300D polyester fabric is expressed in g. How is the conversion between D and G?
G, generally speaking how many how many grams per square metre g/m2, insiders will omit per square metre, directly how many how many grams.
There is no conversion between D and G.
Is 300D polyester fabric weighing 180G that means 180G of polyester fabric is 300D?
A 300D polyester fabric is not called a polyester taffeta, it is called an Oxford fabric. 180G means that it weighs 180G per square metre.
You cannot say that a 180G polyester fabric is 300D because the grammage changes during dyeing and other finishing processes.
3,It's ounces, right? 1oz = 31.1035g. No need to actively calculate according to this formula
4, UV resistance has a special glue, generally light colours are more difficult to do, dark colours are easier to meet the standard.
If 100% resistance, it does not seem to work.
5, more contact will be able to distinguish, no contact I said it is useless, PVC is better to distinguish, there will be a thicker film.
PA coated with white and PU coated with white or coated with PA and PU transparent glue from the appearance is very difficult to distinguish, but PA and PU still have a difference, one is the feel: PA feel more astringent PU more smooth, PU elasticity than PA good; a gloss: PA no luster, PU luster brighter, and a PU has a good sense of film, touch the feeling of leather film. In short, PU is brighter, has good elasticity and a film feel, while PA does not have these conditions.
Of course, it is difficult to tell the difference just by these general novices, by the way, to teach you a tip: 1, with a rubber pressed hard on the surface of the cloth and then lift up, PA will follow the rubber sticky up while PU is not sticky. 2, in the coating of the two pieces of cloth a few drops of toluene (if available), and then gently rub with your hands (pay attention to protection, hands do not directly touch the toluene), PA coating will fall off, PU will not fall off
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