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Description

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Description

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Standard density Types of PTFE thread(Can be customized)

1350±50 dtex(1200 den)	2600±100 dtex(2400 den)
1600±50 dtex(1500 den)	1350±50 dtex     (1200 den)

Standard Types of PTFE thread(Can be customized)

 

solid thread	twin thread	coloured thread
mixed colour thread	pure thread	mixed thread

 

Standard Net weight/spool of PTFE thread(Can be customized)

500g	600g
800g	1000g

Notice:
1.We use “dtex” as the unit of linear density(a certain quality of unit length) according to the national standard and requirement. 1350 dtex means that the quality of 10000 meters sewing thread is 1350g. We also use another linear density unit “den”(Daniel) or “D”,which is the quality of the 9000m length, so 1 dan equal 0.9 dtex.
2.In order to avoid harmful gases, please donot burn the PTFE.
3.After sewing PPS filter bag,the resilience of pinhole may be bad and pinhole may be bigger.So we suggest using thinner needle or contact our engineer for better suggestion.
4.To guarantee the quality of the PTFE thread,all of the thread made from PTFE yard and without knot.
5.Because PTFE products are slippery, you can add a little silicone oil if needle skip during operation.

PTFE is a fluorocarbon solid, as it is a high-molecular-weight compound consisting wholly of carbon and fluorine. PTFE is hydrophobic: neither water nor water-containing substances wet PTFE, as fluorocarbons demonstrate mitigated London dispersion forces due to the high electronegativity of fluorine. PTFE has one of the lowest coefficients of friction of any solid. PTFE is used as a non-stick coating for pans and other cookware. It is very non-reactive, partly because of the strength of carbon–fluorine bonds, and so it is often used in containers and pipework for reactive and corrosive chemicals. Where used as a lubricant, PTFE reduces friction, wear and energy consumption of machinery.

PTFE Sewing thread technical data

NO.	ITEM	Index	Testing environment	Remark
1	linear density	1200±50den	Normal Temperature
2	Tensile strength	≥33N	Normal Temperature（Winter≤16℃）
3	breaking strength	≥2.6cN/den	Normal Temperature
4	Elongation	4~6%	Normal Temperature
5	Thermal shrinkage	≤2.5%	260℃ 2h
6	Plied yarn	3
7	Continue Lenght	≥5500m		No joint
8	Roller net weight	≥0.65kg
9	Lenght/1000g	7000-7400m

 

Application of PTFE sewing thread

 

Name	Density types	Application
special thread for filter bag sewing	1350±50 dtex     (1200 den)	double needle thread for sewing filter
Special thread for the top or the bottom of filter bag	2600±100 dtex   (2400 den)	Singer needle thread for sewing the top or the bottom of filter bag
Special thread for PPS filter bag	1600±50 dtex     (1500 den)	for sewing PPS filter bag
Coloured sewing thread for filter bag sewing	1350±50 dtex     (1200 den)	special using thread for filter bag

 

 

Introduction

PTFE sewing thread is made of 100% polytetrafluoroethylene resin material with high-quality temperature resistance(-196~260℃), corrosion resistance, hydrolysis, oxidation resistance, and other properties.

 

Features:

1. The single strand of this product is manufactured by the extruding process, with circular diameter, uniform and full trace, small shrinkage, stable elongation, and large continuous length(the maximum weight specification of 1350dtex conventional line is 1000g/spool and continuous length is 7500m), which is suitable for high-speed sewing machines. In addition, in order to enhance the fastness of stitching, 1650dtex(1500D), 2000dtex(1800D), 2650dtex(2400D) for bag top, bag bottom and other special specifications are equipped.
2. In order to ensure the fastness of sewing, this product is made of “long filament” without any bonding and stitching methods. the length of the sewing thread is artificially increased to ensure the safety of the sewing thread and the safety of the filter bag.
3. Because PTFE material has a very strong self-lubrication property and extremely low friction coefficient, if there is a stitch jumping during sewing, an appropriate amount of silicone oil can be coated on the sewing line to prevent this situation from happening.
4. Due to the particularity of the manufacturing process, there is a 10% error range in linear density and strength parameters.

Application:

 

Our products are widely used in environmental protection, filtration, chemical industry, sunshade sail, and other fields.

Specification：

 

Technical parameters of PTFE sewing threads(1)
Model: ST-EF/1350/3-a
No.	Parameter	Value	Test Temperature	Notes
1	Linear density	1350±50dtex	Ambient temperature	1200D
2	Breaking strength	≥36N	＜20℃
3	Breaking tenacity	≥2.6cN/dtex	＜20℃
4	Elongation at break	4-10%	＜20℃
5	Heat-shrinkage rate	≤3%	260℃/2h
6	Yarn	3
7	Average mass per one meter	0.135g/m
8	Length per kilometers	7500m
9	Net weight/spool	800-1000g		Without knots

 

Technical parameters of PTFE sewing threads(2)
Model: ST-EF/1650/3-a
No.	Parameter	Value	Test Temperature	Notes
1	Linear density	1650±60dtex	Ambient temperature	1500D
2	Breaking strength	≥39N	＜20℃
3	Breaking tenacity	≥2.3cN/dtex	＜20℃
4	Elongation at break	4-10%	＜20℃
5	Heat-shrinkage rate	≤3%	260℃/2h
6	Yarn	3
7	Average mass per one meter	0.165g/m
8	Length per kilometers	6000m
9	Net weight/spool	800-1000g		Without knots

 

Technical parameters of PTFE sewing threads(3)
Model: ST-EF/2000/4-a
No.	Parameter	Value	Test Temperature	Notes
1	Linear density	2000±1000dtex	Ambient temperature	1800D
2	Breaking strength	≥49N	＜20℃
3	Breaking tenacity	≥2.45cN/dtex	＜20℃
4	Elongation at break	4-10%	＜20℃
5	Heat-shrinkage rate	≤3%	260℃/2h
6	Yarn	4
7	Average mass per one meter	0.2g/m
8	Length per kilometers	5000m
9	Net weight/spool	600-800g		Without knots

 

Workshop

        

 

Color PTFE Sewing Thread:

 

We also provide color PTFE sewing thread. Color sewing thread is made by a unique blending technology by adding nano fluoro based pigments to PTFE dispersion resin. The product has the characteristics of full color, oxidation resistance, and high fastness to sunlight while maintaining excellent resistance to temperature and corrosion.

Application:

Color sewing thread is mainly used for sewing special industrial powder (mineral powder) collection filter bag, dust filter bag, screen identification, sailing sail, sunshade tarpaulin and etc.

Specification:

The density specification of color sewing thread is 1350-5500dtex. Meanwhile, the special color can be customized.

Notifications:

1. Please do not use an open fire to burn it during using the product in case of the generation of harmful gas to the human body.
2. The product waste is not degradable and will cause environmental pollution, do not mix it with ordinary garbage or burn it. Please collect and recycle it by a professional company.
3. PTFE material is a non-petrochemical product, which is manufactured as non-renewable mineral resources with high value. Please pay attention to economical use.
4. According to the standards of the China Industrial Textile Industry Association and international practices. Dtex refers to the mass of a certain unit length(G/L). Another unit of linear density commonly used in the industry, “den”(Daniel), refers to the mass of 9000 meters in length. 1den=0.9dtex