Resin Hose Manufacturer in Japan

# Ink-Jet Printers

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## Tube for Ink-Jet Printers: Ink-Supply Tube

When you select a tube for ink-jet printers, a tube will be a key item. This is because inks will be transported through the tube, and the quality of the tube greatly affects the inks and printing quality. Also, due to the improving quality of wide-format, roll-to-roll, textile, ceramic tile and corrugated boards’ ink-jet printers these days, there are so many kinds of inks (such as solvent-based inks, eco-solvent inks, latex inks, water-based inks, aqueous inks, UV inks, UV curable inks, degassed inks and oil-based inks) for various printing applications. These days, ink-jet technologies have been applied to other fields (such as 3D printing and printing on lithium-ion battery), which also require the tube.

In order to meet these various applications and inks, a tube has to have a high solvent resistance, high oxygen (gas) barrier property, low moisture permeability, flexibility, outer layer smoothness (sliding property and abrasion resistance) and anti-flammability (flame retardancy). If a tube has a problem of gas barrier property and moisture permeability, oxygen and moisture will mix into the ink.

Thus, the quality of ink will change, leading to clogging into the printing heads or generating a bubble of the inks. As a result, ink droplet will not be stable, which means that ink-jet ejection failure will occur. This badly affects the printing (output) quality. This problem also occurs when you do not run an inkjet printer for long periods of time. HAKKO CORPORATION offers various high-quality products for your applications, which meet various customers’ needs.

Our products are highly recommended for textile printers, wide-format ink-jet printers, large-format ink-jet printers, packaging printers, label printers, textile printers, dye sublimation printers, roll-to-roll printers, ceramics tile printers, bottle printers, garment printers (DTG), continuous feed printers, cut sheet printers, 3D printers (Sheet Lamination, Binder Jetting and Material Jetting Methods) and printheads.

Other than transporting inks through tube, we can offer an economical tube for waste-inks (for non-critical parts). Also, based on your request, we can manufacture a made-to-order product such as low VOC tubes, ink tube for roller pump, anti-flammable (flame retardancy: UL-Based Criteria [such as UL94]) tubing and tubing with cleanroom options.

Besides, we can offer multi-line tubing with/without layer-cutting and slit-cutting as our made-to-order products. For more information on this, please click the following link: Example: Industrial Ink-Jet Printers (Multi-Line Tubing). If you are interested in our made-to-order products, please click the following button and fill out the form.

#### Product Selection Chart Based on the Ink Type

(A) Water-Based Ink

 Model Number I.D Size Flexibility Gas Barrier Solvent Barrier Ink Resistance (Inner Layer) Price E-KYT 2mm - 8mm & 1/4" + E-PD 2mm - 8mm ++ E-SJ 2mm - 8mm & 1/8" - 1/4" +++ E-SJUS 2mm - 8mm & 1/8" - 1/4" +++ E-SJV 6mm - 8mm +++ E-WBT 2mm - 6mm ++++ E-SBT 2mm - 6mm +++++

Flexibility: = Better = Best
Gas Barrier: = Better = Best
Solvent Barrier: = Yes $\times$ = No
Ink Resistance: = Better = Best
Price: Lowest (+); Highest (+++++)

(B) Solvent-Based Ink

 Model Number I.D Size Flexibility Gas Barrier Solvent Barrier Ink Resistance (Inner Layer) Price E-SJ 2mm - 8mm & 1/8" - 1/4" + E-SJUS 2mm - 8mm & 1/8" - 1/4" + E-SJV 6mm - 8mm + E-SBT 2mm - 6mm ++

Flexibility: = Better = Best
Gas Barrier: = Better = Best
Solvent Barrier: = Yes $\times$ = No
Ink Resistance: = Better = Best
Price: Lowest (+); Highest (++)

(C) UV-Based Ink

 Model Number I.D Size Flexibility Gas Barrier Solvent Barrier Ink Resistance (Inner Layer) Price E-SJ-BK 2mm - 8mm & 1/8" - 1/4" + E-SJUS-BK 2mm - 8mm & 1/8" - 1/4" + E-WBT-UV 2mm - 6mm ++ E-SBT-UV 2mm - 6mm +++

Flexibility: = Better = Best
Gas Barrier: = Better = Best
Solvent Barrier: = Yes $\times$ = No
Ink Resistance: = Better = Best
Price: Lowest (+); Highest (+++)

#### Chemical Resistance Data for Ink-Jet Product Series

 Chemical Name and Model Number E-SBT E-SJ E-PD E-KYT E-WBT E-POL Acrylic Acid Ester $\bigcirc$ $\bigcirc$ $\triangle$ $\triangle$ $\triangle$ $\triangle$ Glycerol $\bigcirc$ $\bigcirc$ $\bigcirc$ $\bigcirc$ $\bigcirc$ $\bigcirc$ Diethylene Glycol $\bigcirc$ $\bigcirc$ $\bigcirc$ $\bigcirc$ $\bigcirc$ $\bigcirc$ Ethylene Glycol $\bigcirc$ $\bigcirc$ $\bigcirc$ $\bigcirc$ $\bigcirc$ $\bigcirc$ Diethylene Glycol Diethyl Ether $\bigcirc$ $\bigcirc$ $\times$ $\triangle$ $\triangle$ $\triangle$ Acetone $\bigcirc$ $\bigcirc$ $\times$ $\bigcirc$ $\triangle$ $\triangle$ MEK (Methyl Ethyl Ketone) $\bigcirc$ $\bigcirc$ $\times$ $\triangle$ $\triangle$ $\triangle$

$\bigcirc$: Can be used without any influence, or almost no influence on material.
$\triangle$: Can be used though having an influence on material to some extent.
Additional check before in use is required.
$\times$: Cannot be used.

Precautions for the Chemical Resistance Data Table Above

1: This chemical resistance data is based on the chemical resistance of the material, which does not mean the guaranteed value of the product.
2: When you transfer chemicals, make sure to test our products in your actual environment.
3: In case the chemical name is not specified, water solution concentration is saturated and the test temperature is the normal temperature.
4: In case the chemical is the gas, it is not the same as the permeability of the chemical. Please do not transfer chemicals (such as active gas) that are dangerous in case of permeating.

For chemical resistance data of other fluids, please refer to this webpage.

Tips to Select the Tube

1: Where is the tube used? Is it for supplying an ink? Is it for waste-ink line? Is it for peristaltic pump?
2: What kind of ink do you transfer? Is it based on water-based inks, solvent-based inks or UV-curable inks?
3: What are the sizes of I.D. and O.D.?
5: By when do you need the tube? (If you prefer a made-to-order tubing, you need to take the production lead time into consideration.)
6: What are your requested features (such as flexibility, abrasion resistance, outer layer smoothness, anti-flammability and so on)?

Inner Layer Material Sheet

Question 1: It seems that stable ejection of ink from a printing head is not possible, due to the generation of bubbles or the accumulation of air bubble in a tube. What is the cause of this? How can we solve this problem? Answer 1: The oxygen in the atmosphere (outside the tubing) is taken inside the tubing, leading to the situation that the ink is oxidized and deteriorated. We recommend you to choose E-WBT or E-SBT, barrier tubing products.

Question 2: By changing the viscosity of inks in a tube, the ejection of ink from a printing head is unstable. How can we solve this problem? Answer 2: This problem comes from the situation that the solvent component of the ink in the tube might volatilize, causing a change in the ink viscosity in the tube and causing the ink to clog. In order to solve this problem, we recommend a E-SBT tubing with solvent-barrier features.

Question 3: When the tubing is in use, the outer layer of the tubing becomes wet, which seems that an ink is coming out. How can we prevent this issue? Answer 3: It is probable that monomer component of inks is evaporated as time has passed by and penetrated into the outer layer of the tubing. We recommend a E-SBT tubing, as its inner layer has the feature of solvent-barrier.

Question 4: We would like to improve the abrasion resistance of the outer layer, as when the printing machine is in motion, one tubing is shaved with the other tubing, leading to the situation that the tubing is eventually cracked and the ink will leak. How can we solve this problem? Answer 4: We can customize an ink tubing that will improve the feature of the abrasion resistance of the outer layer.

Question 5: It seems that the matching between an ink tubing and the fittings is not good, leading to the situation that an ink will be leaking from the tubing. Do you have any solutions on this?Answer 5: We have our original fittings that perfectly fit in well with our tubing series. However, in case you would like to use fittings other than HAKKO original products, please let us know the name of the manufacturer and the part number. We can conduct the matching test and give advice about whether or not the fittings are usable for our tubing.

## Major Product List

#### Flexible Fluorine (ETFE) Resin Tubing Clear [Model Number: E-SJ]

E-SJ-mm

Solvent Resistance
Non-PVC
Chemical Resistance
Low Elution
Low Odor
Food-Sanitation
Flexibility
Transparency
Oil-Proof
Cold Resistance
Alcohol Resistance

Inner Diameter : 2 - 8mm

#### Flexible Fluorine (ETFE) Resin Tubing Clear Inch Type [Model Number: E-SJ-inch]

E-SJ-inch

Solvent Resistance
Non-PVC
Chemical Resistance
Low Elution
Low Odor
Food-Sanitation
Flexibility
Transparency
Oil-Proof
Cold Resistance
Alcohol Resistance

Inner Diameter : 1/8" - 1/4"

#### Flexible Fluorine (ETFE) Resin Tubing Black [Model Number: E-SJ-BK]

E-SJ-BK-mm

Solvent Resistance
Non-PVC
Chemical Resistance
Low Elution
Flexibility
UV Cut
Oil-Proof
Cold Resistance
Alcohol Resistance

Inner Diameter : 2 - 8mm

#### Flexible Fluorine (ETFE) Resin Tubing Black Inch Type [Model Number: E-SJ-BK-inch]

E-SJ-BK-inch

Solvent Resistance
Non-PVC
Chemical Resistance
Low Elution
Flexibility
UV Cut
Oil-Proof
Cold Resistance
Alcohol Resistance

Inner Diameter : 1/8" - 1/4"

#### Flexible Fluorine (ETFE) Resin Tubing (Ultra Soft Type) [Model Number: E-SJUS]

E-SJUS

Solvent Resistance
Non-PVC
Chemical Resistance
Low Elution
Food-Sanitation
Flexibility
Oil-Proof
Cold Resistance
Alcohol Resistance
Ultra Soft

Inner Diameter : 2 - 8mm & 1/8" - 1/4"

#### Flexible Fluorine (ETFE) Resin Tubing Black (Ultra Soft Type) [Model Number: E-SJUS-BK]

E-SJUS-BK

Solvent Resistance
Non-PVC
Chemical Resistance
Low Elution
Flexibility
UV Cut
Oil-Proof
Cold Resistance
Alcohol Resistance
Ultra Soft

Inner Diameter : 2 - 8mm & 1/8" - 1/4"

#### KY TUBE [Model Number: E-KYT]

E-KYT

Non-PVC
Chemical Resistance
Low Elution
Low Odor
Food-Sanitation
Flexibility
Alcohol Resistance

Inner Diameter : 2 - 8mm & 1/4"

### Barrier Tubing Product Series

#### Barrier Tubing for Water-Based Ink [Model Number: E-WBT]

E-WBT

Non-PVC
Chemical Resistance
Flexibility
Ink Resistance
Oxygen Barrier

Inner Diameter : 2 - 6mm

#### Barrier Tubing Black for Water-Based Ink [Model Number: E-WBT-UV]

E-WBT-UV

Non-PVC
Chemical Resistance
Flexibility
UV Cut
Ink Resistance
Oxygen Barrier

Inner Diameter : 2 - 6mm

#### Barrier Tubing for Solvent-based Ink [Model Number: E-SBT]

E-SBT

Solvent Resistance
Non-PVC
Chemical Resistance
Low Elution
Flexibility
Ink Resistance
Oxygen Barrier
Solvent Barrier

Inner Diameter : 2 - 6mm

#### Barrier Tubing Black for Solvent-Based Ink [Model Number: E-SBT-UV]

E-SBT-UV

Solvent Resistance
Non-PVC
Chemical Resistance
Low Elution
Flexibility
UV Cut
Ink Resistance
Oxygen Barrier
Solvent Barrier

Inner Diameter : 2 - 6mm

### Multi-Line Tubing Product (Made-to-Order Product)

#### Multi-Line Tubing without Layer and Slit Cutting

Multi-Line Tubing

Non-PVC
Chemical Resistance
Flexibility
Ink Resistance

Inner Diameter : 2 - 6mm

#### Multi-Line Tubing with Layer and Slit Cutting

Multi-Line Tubing (Layer and Slit Cutting)

Solvent Resistance
Non-PVC
Flexibility
Ink Resistance

Inner Diameter : 2 - 6mm

#### Pump Tubing (Olefin Type) [Model Number: POL]

E-POL

Non-PVC
Chemical Resistance
Low Elution
Low Odor
Flexibility
Non-Phthalic Acid
RoHS 2 Free

Inner Diameter : 2 - 4mm & 1/16" - 1/8"

#### Pump Tubing (Styrene Type) [Model Number: PST]

PST

Non-PVC
Chemical Resistance
Low Elution
Food-Sanitation
Flexibility
Non-Phthalic Acid
Liquor and Alcool
Alcohol Resistance
RoHS 2 Free
FDA Compliant

Inner Diameter : 2 - 4mm