What is the problem with color thermal label paper when it comes into contact with grease?

Color thermal label paper may have the following problems when it comes into contact with grease:

1. Fade or blur

Because the working principle of thermal paper is based on the chemical substances in the thermal coating react when heated and develop color, these chemicals are relatively weak in resistance to organic solvents such as oils and fats. Therefore, when the color thermal label paper comes into contact with oil, the oil may penetrate into the thermal coating, interfering with or destroying the chemical reaction balance between the dye and the color developer, causing the part that has been colored to fade or become blurred.

2. Adhesive grease

Grease has a certain adhesion, and when the color thermal label paper is in contact with items containing grease, the grease may adhere to the surface of the label paper. This will not only affect the cleanliness of the label paper, but also may further accelerate the aging and fading process of the label paper.

3. Damage the coating structure

Some oils may be highly corrosive or soluble, and prolonged contact may cause damage to the thermal coating of color thermal label paper. The damage of the coating structure will directly affect the color rendering effect and durability of the label paper, and may even lead to the normal use of the label paper.

Coping measures

In order to deal with the problems that may occur when the color thermal label paper comes into contact with grease, the following measures can be taken:

Choose oil-proof thermal paper: there are some specially treated oil-proof thermal paper on the market, which has better anti-grease properties, which can reduce the impact of oil on the label paper to a certain extent.

Avoid direct contact with grease: When using color heat-sensitive label paper, try to avoid attaching it directly to items containing grease. If it must be touched, cover the surface of the label with a protective film or use other isolation measures.

Timely cleaning: If the color thermal label comes into contact with grease, gently wipe it with a clean cloth or paper towel in time to prevent grease from remaining on the surface of the label for a long time.

In summary, color thermal label paper may have problems such as fading, blurring, adhering to grease and destroying the coating structure when it comes into contact with grease. In order to reduce the occurrence of these problems, you can choose oil-proof thermal paper, avoid direct contact with grease and clean the surface of the label paper in time.