Barrier Tubing (Fluorine) [Model Number: E-BTF]

*Please note that the value of "Minimum Bend Radius" is NOT equal to that of "Flexibility." About "Flexibility," please refer to the value of "Bending Stress Data" in the section of Technical Information or request the sample.

*If you request a barrier tubing with a non-standard size, we can offer as a made-to-order product. Please fill out a Made-to-Order Inquiry form below.

Point:

What is a Barrier Tubing? Needs for Tubing with Excellent Oxygen Barrier

If the oxygen barrier or water vapor barrier is low for the ink supply tubing, oxygen and water vapor in the atmosphere permeate into the ink.

This leads to the clogging of print head or ink discharge defect due to the generation of air bubble.
Also, if the low oxygen barrier or water vapor barrier tubing is used, solvent components of the ink inside the tubing will evaporate, changing the ink quality. As a result, printing quality badly affects.

This HAKKO five-layer product includes the barrier resin (middle layer), keeping the oxygen less likely to be permeated.

Cautions:

The material of the middle layer and outer layer is inferior in chemical resistance to the inner layer. Please do not allow chemicals to adhere to the tube during immersion or fitting insertion, which might cause swelling and cracking of the tube.
When using the metal fittings, do not use any scratches or rusty fittings on the nipple surface. Damage to the inside of the tube may cause tube rupture or leakage. Also, do not use resin fittings with scratches on the surface of nipples. Depending on the state of the junction (parting line) of the resin joint, fluid may leak. Please confirm the matching between E-BTF tubing and the fittings. If you need our technical support in fittings, please fill out this form.
Due to the laminated structure tubing, please use the joints to seal an inner surface of the tubing.
Please do not use the joints to seal an outer surface of the tubing. This may result in the bursting or coming off from the tubing.
When you use our products, please refer to "Precautions for Use."
In terms of chemical resistance, please refer to ""ETFE" on Chemical Resistance Data."

Technical Information

1. Gas Barrier Test

Seal the de-gas water into the tubing. Then, leave the tubing under the conditions of temperature (20 $^\circ$C [68 F]) and humidity (50%) for 1 week. Then, check the increasing amount of dissolved oxygen for each tubing.

2. Sample

3. Results

Results: E-BTF is superior to E-PD, E-SJ, and fluorine rubber tubing in terms of gas barrier feature.

1. Solvent Barrier Test

Seal the solvent (Diethylene Glycol Diethyl Ether) in the tubing.
Then, leave the tubing under the condition of temperature (60 $^\circ$C) with sealing both ends.
Measure the weight (weight changes) of the ink tubing in 7 and 14 days.
*Except the weights of tubing and sealing items, we only measured the weight changes of the solvents.

2. Sample

3. Results

Results: E-BTF is superior to E-SJ and fluorine rubber tubing in terms of solvent barrier feature.

1. Water Vapor Barrier Test

Seal the water in the tubing (Length: 400mm). Then, leave the tubing under the condition of temperature (20 $^\circ$C) with sealing both ends. Measure the weight (weight changes) of the water in 7 and 14 days.
*Except the weights of tubing and sealing items, we only measured the weight changes of the water.

2. Sample

3. Results

Results: We list in order of water vapor barrier results from high to low as follows: (a) E-BTF, (b) E-SJ, (c) E-PD, and (d) E-SJUS.

Model Number	I.D.$\times$O.D.	Working Pressure	Working Pressure	Minimum Bend Radius
	I.D.$\times$O.D.	20$^\circ$C	20$^\circ$C	20$^\circ$C
	mm	MPa	Bar	mm
E-BTF-2$\times$4	2$\times$4	0 - 1.2	0 - 12	25
E-BTF-3$\times$5	3$\times$5	0 - 1.0	0 - 10	30
E-BTF-4$\times$6	4$\times$6	0 - 0.9	0 - 9	30
E-BTF-6$\times$8	6$\times$8	0 - 0.5	0 - 5	55

Test Sample	Bending Stress Data (N/60mm)	Kink Resistance (mm)
E-BTF-4$\times$6	1.5	11
E-SJ-4$\times$6	1.25	11
E-PD-4$\times$6	1.3	11
E-SJUS-4$\times$6	0.7	20
Fluorine Tube I.D. 4 mm $\times$ O.D. 6mm (Produced by Other Company)	3	11

Product Name	Materials, Characteristics
Fittings for Multi-Layer Tubing [Model Number: E-FTS-F]]	Material: SUS316L (SS316L) (Body) and SUS304 (SS304) (Nut) It is designed by HAKKO tubing products, so you do not have to worry about fluid leakages and coming off. Specify temperature range and working pressure for each product. It is excellent in corrosion resistance [Body: SUS316L (SS316L)]. Since it is made of stainless steel (Passivation Treatment), you can transfer a wide variety of fluids.

PEEK (Carbon Reinforced) Nut Type Fittings [Model Number: AL]]	Material: PEEK Lightweight...Fitting weight is less than one-fifth, compared to same-size SUS joints, leading to overall weight reduction of equipment. Great Heat Resistance...PEEK material has excellent heat resistance among resins. Chemical Resistance...PEEK material has excellent resistance to a wide range of chemicals including acids, alkalis and organic solvents. Mechanical Strength...Carbon fiber is added to the engineering plastic of PEEK, which is strong in tensile and impact resistance.

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Technical Information

1. Gas Barrier Test

2. Sample

3. Results

1. Solvent Barrier Test

2. Sample

3. Results

1. Water Vapor Barrier Test

2. Sample

3. Results

1. Test Methods

2. Results

HAKKO Original Fittings for E-BTF

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