Hot film

Types of hot film

• Hot-stamping film

  A hot-stamping film is a thin plastic film with metallic foil. It is placed on the hot stamping block at the time of stamping. This film is made of polyethylene terephthalate. This PET material is embossed and coated with a metallic layer. This layer is suspended between layers of color coating. Stamping presses equipped with heated portions perform the stamping.

• Polyester hot film

  The polyester hot film has good flexibility and insulation properties. Polyester is a strong synthetic material made from polyethylene terephthalate. It is popular due to its durability and ability to retain shape. The film is applied by wrapping it around the element requiring insulation and protection. Common uses of this film include motor components, wire insulation, and circuit boards.

• Hot foil stamping film

  Hot foil stamping is a process that involves transferring metallic foil to a substrate surface. This is done using a heat-stamped die. The foil is composed of a thin, flexible polyester film. This film is made of thin layers of metallic material such as aluminum or bronze.

  The foil stamping can be in metallic and matte finish. Often, the area stamped becomes embossed. This adds a three-dimensional richness and depth to the stamping process.

• Release hot film

  Hot release film is used in metal stamping. It is also referred to as a dielectric film or insulating film. It provides a barrier between two parts that should not touch each other during stamping.

  Release films are made of plastic such as polyester or polyimide. These materials have low adhesion to metal. This prevents the two surfaces from sticking together.

Design of hot film

• Hot stamping film design

  The design of the stamping film depends on the specific application and desired effect. Coating, heat, and pressure are key elements that facilitate the transfer of hot stamped film onto substrates.

  The films are made of flexible plastic materials. These include polyester or polycarbonate. The films are thin yet strong enough to carry intricate designs.

  Hot stamp films come with metallic, matte, or holographic finishes. The finish can significantly impact the aesthetic value of the product. Unlike inks, the hot stamping film is more durable. It is resistant to scratching, fading, and wearing.

  Common designs for hot stamping films include decorative elements such as patterns, logos, and symbols. Other designs include tactile elements such as embossing.This adds texture to the stamped area.

• Hot stamping foil

  Hot stamping foil consists of three primary elements: a plastic carrier film, a metallic foil layer, and an adhesive layer. It also comes with a thin layer of heat-activated adhesive. It is similar to the hot stamping film.

  The foil often comes with metallic, holographic, or color reticulated textures and designs. These features enhance the unpacking experience of the product. The foil is transferred onto the substrate by a heated die applying pressure.

• Hot tape stamping

  Just like the hot stamping process, the materials used in hot tape stamping include adhesive polymer layers, tape, and substrates. The process involves a tape illustration that uses heat and pressure to apply the foil. It commonly uses a die-cut polymer plate.

  The outcome is a quick and cost-effective way to apply decorative or functional elements to a variety of surfaces. Unlike other designs, this method does not require a metal die.

Commercial use of hot films

• Product packaging

  In product packaging, hot stamping film adds a premium feel to the design. It creates eye-catching metallic looks for branding and visual appeal. This is particularly useful in cosmetics, food, and beverage industries to make products stand out.

• Labeling

  The films enhance labels for bottles, jars, and containers. Production companies use hot stamped films to include embossed or metallic foil logos, taglines, and other decorative elements. This adds sophistication and class without obscuring critical information.

• Printing

  Hot stamping films are used in printing to provide special effects to inks. Printers use the films to add metallic finishes to business cards, greeting cards, and promotional materials. These films elevate the class and luxury of printed materials.

• Electronics

  In electronics, hot stamped films provide insulation and protection. Manufacturers use the films to label electronic components, adding decorative or functional textures to surfaces. Stamping foils are also employed to give these components unique finishes that enhance aesthetics and branding.

• Stationery

  Planners, notebooks, and other accessories often come with hot stamping. This process gives special gilding to covers, spines, and pages. For example, worksheets may be embossed with a company logo to provide classy branding to the product.

• Promotional products

  The hot stamping film is widely used on items like trophies, awards, and promotional giveaways. It offers a clean, durable finish. The films are also used to customize products such as keychains, pens, and plaques.

• Textiles

  Manufacturers use hot stamping films in the textile industry to add embellishments. These films provide unique metallic or reflective finishes to fabrics. This process is popularly applied in fashion labels, accessories, and decorative fabrics for a luxurious outlook.

• Plastics

  The hot stamping films work on rigid or flexible plastic materials. For example, they are applied to plastic parts for automobiles. In this process, the films provide decorative finishes while insulating surfaces from heat and electrical components in electrical housings.

• Paperboard containers

  Hot stamping films are widely used on paperboards. They give an appealing metallic or glossy finish to containers used for packaging consumer goods such as electronics, tools, and hardware. This makes packaging more appealing to potential customers and enhances brand visibility.

Specification & Maintenance of hot film

Hot film specification

• Materials

  There are two main types of hot films, namely metallic and non-metallic. Metallic hot stamping films are made of thin plastic film laminated with metal foil. On the other hand, non-metallic hot stamping films are made of plastic films coated with ink formulas.

• Hot-stamping foil materials

  The materials used in the hot stamping foil include PET and PVC films. They are typically laminated with metallic foil made from aluminum or other metal containing materials. The foil may also be coated with ink or adhesive between the foil and film.

• Temperature and pressure

  Hot stamping films work under different temperature and pressure settings. Usually, they work well at different force levels of about 0.1 to 1.5 MPa. The temperature range is normally between 90 to 210 °C. These settings vary depending on the type of film and substrate in use.

• Film thickness

  Hot stamping foil films are available in various thickness levels. Normally, they range from 0.5 to 15 micrometers. Thinner films are more flexible and suitable for curved surfaces.

Hot film maintenance

• Storage

  The hot stamping films should be stored in a cool, dry area to prevent humidity from damaging the adhesive. The films also have to be protected from sunlight. This is because UV rays can break down the foil and film materials.

• Keep the area clean

  Clean the area where the films will be stored to avoid contamination. Ensure the equipment has no residue from previous stampings.

• Equipment care

  Maintenance of the hot stamping machine should be done frequently. Regularly check and replace worn-out parts. Inspect for any defects. Always ensure that the machine is operating at the right pressure and temperature for proper foil transfer.

• Test and calibrate

  Before starting the process, run the film on test samples. This helps in fine-tuning temperature and pressure settings. It ensures consistent transfer across different batches.

• Handling

  Use care gloves when handling the films. This avoids fingerprints and contamination. Make sure the films are kept free from dust and debris before use.

Quality & Safety Considerations of hot film

Hot film quality

• Materials

  Hot stamping films are made of quality materials. Usually, they are made of polyester films that are remarkably strong, thin, and stretchy. Polyester filmsare great at sticking to all kinds of surfaces. They come with metallic foil laminated between the films.

• Durability

  The materials are specially chosen for their ability to deal with temperatures and pressure. When the films are exposed to heat, they smoothly transfer designs onto surfaces. The films also have adhesive backing to ensure they stick well.

• Finish

  The finished products come with a shiny look that people really love. The films add something special to packaging, cards, and labels. They make everything look fancier and richer to the eye. The films are manufactured in colorful and sustainable ways to enhance their appeal and durability.

• Appearance

  The films come in many pretty colors and shiny metallic looks. The films add vibrant prints to products and packaging. This makes them super appealing. They give items a sleek, polished finish that captures attention instantly.

• Performance

  Hot stamping films transfer designs smoothly every single time. People know they can count on these films to apply beautiful metallic effects effortlessly. They allow creation of detailed graphics and logos that make brands stand out.

Safety considerations

• Proper handling

  It is crucial to avoid direct skin contact with the films. The films may cause burns or injuries if dropped. Always wear protective gear such as gloves and goggles while using them.

• Emergency procedures

  In case of accidents such as cuts or burns, it is important to refer to the manufacturer’s first aid tips. Normally, the first aid pamphlet is packed with the films. Always have the manufacturer's contact information handy to ensure quick assistance in emergencies.

• Personal protective equipment

  While handling the films, parts, and machinery used in the process, it is paramount to wear relevant personal protective equipment. This PPE includes gloves, masks, and goggles. They help avoid skin contact, inhalation, and eye exposure. This minimizes risk.

• Chemical safety

  Hot stamping metals and films may emit harmful fumes. Ensure that there is adequate ventilation while working with the films. In poorly ventilated areas, they may lead to respiratory issues. Care should also be taken when disposing of materials to avoid exposure to sharp objects and toxic substances.

• Fire hazards

  If the films are exposed to high heat, they may catch flames. Always keep them away from open fires and extreme heat. Check regularly to confirm that equipment is functioning correctly and no foil is catching fire.

• Solvent safety

  Release the films from adhesive using chemicals, thinner, or harmful solvents. These substances may be toxic when inhaled, ingested, or in contact with the skin. Always handle them with care, ensuring proper ventilation while using them. in case of contact, wash the affected area with running water.

Q & A

Can hot stamping foil be recycled?

No, the materials cannot be recycled. This is because they consist of different thin layers. Each layer is made of diverse materials laminated together with adhesives. This means that separating the layers for recycling is difficult and impractical.

How to remove hot stamping foil?

Cold or room temperature are effective when removing release films. It helps in separating the films from the substrates. If gentle peeling does not work, then another method has to be applied. This involves using chemicals such as solvents and thinners. Note that solvents can be harmful to health.

Can I use acrylic glue instead of special adhesive for hot films?

Acrylic glue can be applied in instances where special adhesives are required. They create a bond between two surfaces enabling them to hold onto each other firmly. However, using these two types of glue interchangeably may yield undesirable results. Both products have distinct physical and chemical properties that allow them to carry out specific tasks.

Is hot stamping environmentally friendly?

Unfortunately, hot stamping is not eco-friendly. This is because it generates harmful fumes and pollution. Many of the materials used in the products are non-recyclables such as metals and plastic films. Additionally, adhesives are made from volatile organic compounds. These compounds may lead to air pollution.

What are the alternatives to hot stamping films?

Some of the alternatives to hot stamping films include printed solutions, varnish, and embossing. Special effects inks can also be used. They add texture and metallic shine to surfaces without applying foil. Direct printing and other related methods offer durability and flexibility.