What are the factors that affect the storage time of BOPP color thermal synthetic paper?

The factors that affect the storage time of BOPP color thermal synthetic paper mainly include the following aspects:

First, material characteristics

1.Thermal coating quality: Thermal coating in thermal synthetic paper is a key part, and its quality directly affects the storage time. If the chemical formulation of the thermal coating is unreasonable or the coating is uneven, it will lead to a decline in print quality, and it will also affect the durability of the writing. High quality thermal coatings resist the effects of environmental factors (such as light, humidity, temperature), thus extending the shelf life.

2.BOPP substrate performance: The strength and stability of the BOPP substrate also have an important impact on the overall storage time. High quality BOPP substrates with better tear, moisture and chemical resistance help protect thermal coatings from damage.

Second, environmental factors

1.Light: The writing on thermal paper is easy to fade under light, especially strong sunlight or ultraviolet irradiation. Therefore, avoiding long periods of direct sunlight is the key to extending storage time.

2.Temperature and humidity: High temperatures and humidity can accelerate the aging process of heat-sensitive coatings, resulting in blurred or faded handwriting. The appropriate storage temperature is generally between 20-50 degrees Celsius, and the humidity should be controlled within a certain range to avoid excessive humidity.

3.Air oxidation: Oxygen in the air will oxidize the heat-sensitive coating, thereby reducing the preservation time. Therefore, the contact time between thermal paper and air should be minimized during storage.

Third, storage conditions

1.Packaging method: Reasonable packaging method can effectively protect the thermal sensitive synthetic paper from the external environment. It is recommended to use moisture-proof paper or plastic film for sealing packaging, and ensure that the packaging material has good barrier properties.

2.Storage state: For rolled thermosensitive synthetic paper, it should be stacked upright to avoid curling deformation; Flat sheets of heat-sensitive synthetic paper should be stored flat and avoid folding or squeezing. At the same time, the storage height and distance from the ground should also meet the relevant requirements to ensure ventilation and moisture resistance.

Fourth, the way of use

1.Print quality: High-quality printing reduces damage to the heat-sensitive coating, thus extending storage time. Therefore, before use, you should ensure that the printing equipment is in good condition and select the appropriate printing parameters.

2.Follow-up treatment: For the printed thermosensitive synthetic paper label, it is recommended to carry out further protection treatment, such as using transparent tape or cold film coating. However, it should be noted that plastic sealing or hot mounting may accelerate the deterioration process of thermal paper, so the treatment method should be carefully selected.

In summary, the factors that affect the storage time of BOPP color thermal synthetic paper mainly include material characteristics, environmental factors, storage conditions and use methods. In practical application, corresponding measures should be taken according to the specific situation to extend the storage time.