NEW PRODUCTS/DEVELOPED PRODUCTS
Non-fluorinated Oil-resistant Coating Agent
Non-Fluorinated Oil-Resistant Coating Agent
with High Air Permeability
When using paper for packaging foods with high oil or fat content, oil and grease-resistant paper or paperboard are required to prevent oil penetration from food into the packaging paper.
While fluorinated compounds have traditionally been used to achieve oil resistance in paper, environmental and health concerns associated with organic fluorine compounds are driving the need for alternative solutions.
However, achieving oil resistance comparable to fluorinated agents is challenging. When using non-fluorinated alternatives such as acrylic-based agents, paper permeability decreases significantly, inhibiting steam release. This reduced air permeability can adversely affect the texture of fried foods, such as French fries, when packaged.
Our newly developed oil-resistant coating agent, SEIKOAT™-G T-EF201 (or simply T-EF201), is a non-fluorinated agent that maintains high air permeability in treated paper.
Additionally, T-EF201 features a high biomass content and biodegradability, making it an even more environmentally friendly oil-resistant coating agent.
SEIKOAT®-G T-EF-201
Characteristics
- High resistance to edible oils
- High air permeability comparable to that of oil-resistant paper using fluorinated oil-resistant agents
- Prevents edge-wicking of oil
- Contains over 95% bio-based content on solid basis
- Biodegradability (absolute value) of 70% or more
- The composition complies with FDA 21 CFR §176.170 and §176.180
General characteristics
| Item | Properties |
|---|---|
| Non-volatile content | 30wt% |
| Viscosity | 10mPa・s |
| pH | 8.0 |
| Biomass rate (*1) | 95% or more |
| Biodegradability (absolute value) (*2) | 70% or more |
(*2) Complies with JIS K 6950:2000 Determination of ultimate aerobic biodegradability of plastic materials in an aqueous medium
—Method by measuring the oxygen demand in a closed respirometer.
Our measured values (reference values) Activated sludge used: Activated sewage sludge Temperature: 25 ℃
Oil resistance and air permeability
T-EF201-coated paper demonstrates excellent oil resistance with no penetration after 24-hour salad oil test, while maintaining air permeability (minimal impact on Gurley porosity).
| Salad oil resistance test (*4) | Air permeability (*5) | |
|---|---|---|
| Uncoated base paper | × | 17 seconds |
| Paper coated with T-EF201 (*3) | ○ | 32 seconds |
| Oil-resistant paper A (fluorinated) | ○ | 230 seconds |
| Oil-resistant paper A (acrylic) | ○ | 9,999 seconds or more |
Coating conditions: One-sided glazed kraft paper (basis weight 50 g/m2) is used as the base paper
Coating method: Wire bar
Drying conditions: 120 ℃, 30 seconds, drying with hot air
(*4) Salad oil resistance test: Salad oil is dropped onto the test piece and the degree of penetration is observed after 24 hours.
Judgment criteria: ○ Penetration, × bleed-through
(*5) Air permeability: Complies with JIS P 8117 Testing Method for Air Permeability of Paper and Paperboard
Oil resistance of the edge
・Paper coated with T-EF201 prevents oil from penetrating from the edge of the paper.
Visualization of oil resistance at edge
・T-EF201 diffuses into the paper during the coating and drying process, providing oil resistance from the edges of the paper.
