Classification, Characteristics and Application of Shading Tape

What is blackout tape?

Shading tape is a type of tape that uses a special imported environmentally friendly substrate, with a surface treated to achieve partial or complete shading, and is coated with strong adhesive and durable adhesive on one or both sides of the back. Shading tape Black single/double sided tape with shading function, which uses black film made by unique printing process as the base material, and has excellent shielding and insulation properties.

Light blocking tape, also known as opaque tape and widely used as light blocking material, is an adhesive material that can be used for edge wrapping of LED and LCD display screens, shielding light sources, and blocking light source penetration. It has excellent shading performance, soft material, firm adhesion, and is not prone to warping. It is a low-cost and effective accessory product used on LED and LCD.

Classification of shading tape:

According to material: blackout Masking tape, blackout film tape;

Classified by color: bright silver shading tape, matte silver shading tape, black silver shading tape, black shading tape (black black shading tape), black and white shading tape, white silver shading tape, and white film (white shading tape);

Classified by adhesive properties: single sided adhesive tape for shading, double sided adhesive tape for shading. Classified by degree of shading: semi transparent opaque tape, completely opaque opaque opaque tape;

Divided by substrate: single-layer release bottom shading tape, double-layer release bottom shading tape.

Characteristics of Shading Tape

1. The black PET substrate surface can undergo matte treatment.

2. At 25 μ Perform a 180 ° peel test on mPET polyester film lamination with a stretching speed of 300mm/min.

3. Processing in a 1000 level clean environment, with excellent cleanliness.

4. Printed with black coating, with excellent shielding performance. The black coating has excellent insulation performance.

5. Storage temperature: 5-30 ℃ Avoid placing in direct sunlight, low temperature (below 0 ℃), high temperature (above 40 ℃), and high humidity (above 70% RH) environments.

Application of Shading Tape

1. Shading tape can be applied to fix electronic devices' LCD and backlight modules. For electronic devices, fixing the LCD panel and backlight module is very important. Only when the LCD panel and backlight module are fixed properly can the normal use of electronic devices be guaranteed.

2. Shading tape can be applied to block light. In the process of using electronic devices, it is necessary to apply light blocking tape in order to perform light blocking treatment on electronic devices. Generally speaking, blackout tape has a matte black surface, and a matte black surface can also bring many other benefits to blackout tape. For example, it can give blackout tape a certain degree of scratch resistance, good scratch resistance, not only making the surface of blackout tape beautiful and not affecting the user experience of electronic devices, but also providing a certain degree of protection for electronic devices. The matte black surface of the masking tape can also have a certain degree of anti fingerprint performance, which means that during the use of electronic devices, no fingerprints will be left on them.

3. Suitable for mobile phone screens and LCD displays, with the function of black shading and back reflection. It is mainly used for shading and reflection of products such as laptops, mobile phones, PDAs, LEDs, LCDs, etc. It can also be used for shading of products such as illuminated keyboards, ultra-thin advertising light boxes, and backlight boards (sheets).

Light blocking tape commonly used in the electronic field

The current trend in mobile phone design is to increase the functionality while ensuring the lightness of the product. When you use your phone at night or in low light, the LED light source placed under the phone buttons allows us to clearly see the letters and numbers on the buttons. Some mobile phones now place a layer of flexible keyboard light guide film between the phone buttons and the light source, which can transmit the LED light source evenly and with low loss, thereby reducing energy consumption.

There is also a type of light blocking tape related to mobile phone LCD screens. This tape is composed of two layers of black and white, with the white part facing the backlight when used, which can continuously reflect light inside and enhance brightness; The black part serves to prevent the leakage of light.

▼ Black and white glue

Black and white adhesive tape, belonging to a type of blackout tape, is mainly used in optical display devices to adhere and block light. It is made of PET and coated on both sides.

▼ Black and white adhesive characteristics

1. Using black and white dual color special substrate, the white surface absorbs very little light;

2. Excellent shading performance;

3. It has high adhesion performance to various adherends.

Summary of the use of black and white tape

1. Used for fixing LCD (liquid crystal display) and backlight module;

2. It is used for shading and fixing backlight module and LCD (liquid crystal display).

3. A patch used to attach to the side of the product light source or product side;

4. Mainly used to block and reflect light.

The Application of Black and White Adhesive on Mobile Phones

Black and white shading tape is used in the electronic display screen manufacturing industry such as color screen mobile phone backlight and GPS backlight. It has the advantages of moisture resistance, UV resistance, and excellent shading effect, and has moderate viscosity, leaving no residue after tearing. Black tape has a high density, can completely block light, and has good adhesion, making it less prone to breakage during high-temperature and high-speed operation.

With the rise of smart products in recent years, especially smart phones have become a consumption trend of contemporary young people. As a backlight frame fixing and shading die cutting piece, black and white adhesive is required for each mobile phone, so the production quantity of mobile phones is basically the demand of the whole backlight industry for black and white Double-sided tape.

The Application of Black and White Adhesive in Other Electronic Digital Products

The black surface has excellent shading and the white surface has good reflectivity, which has high adhesion, weather resistance, aging resistance, and punching processing performance for PET, stainless steel, etc.

The shading tape in the electronics industry not only requires low light transmittance, but also strong adhesion, rebound resistance, good adhesion, and die-cutting ability. This type of tape is widely used in laptops and tablets (blocking and fixing touch screens and windows), smartphones (blocking and fixing touch screens and main components), televisions and displays (blocking backlight modules, fixing LED light strips), and so on.