You don't need to create static marks at exposure, that can be done more easily later in the darkroom.
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The static marks on film are from the same static electricity that shocks you when you touch a door knob. Just ground the film and isolate yourself (rubber soled shoes work fine) then generate static the way they do in basic physics classes.
If you really want to make a lot of consistent static you need an electrostatic generator.
Play with electricity at your own risk, especially locked in a dark room.
Static electricity is a plague we try to avid in the darkroom. As an old-time photofinisher, I did all manner of things to alleviate. As you know, film is taped to a plastic spool and or taped to paper backing. When loading film on reels or automated film processor, you are required to detach. Old-timers, like me, will tell you, if you rip when you detach, a static discharge occurs. If the darkroom has a rug, shuffling your feet will induce a static charge. So will combing your hair. You can experiment, rubbing dissimilar materials together like a glass rod rubbed on a balloon.
Be aware that many things like the above will induce a static charge. To see the discharge, you need to in total darkness and you need to be dark-adapted. Dark adaption typically requires that you remain in total darkness for 15 minutes or more. Also, low humidity enhances the generation of static electricity.
I spent a lot of time trying to prevent, seem weird it&#;s an art form.
To protect your product. Electrosensitive devices can be impacted by a miniscule amount of ESD. This ESD is not even visible to the naked eye but can have a detrimental impact on your production process. Electrostatic discharge can cause your product to have total failure or reduced functioning. Therefore, it is important to have proper procedures and processes in place to protect your product, which includes proper ESD packaging and clothing. The packaging you select will protect your product when it is being moved into and out of ESD-protected areas (EPA). Therefore, it is important that you select the right packaging for your specific needs.
Anti-static bags and film are manufactured with anti-static polymers. These polymers do not create static when rubbed or touched with other materials. Anti-static materials prevent the packaging from holding a charge and, therefore, will prevent the packaging from releasing a charge. This material will prevent the build-up of static charges but does not provide shielding and does not stop ESD from penetrating the bag. To prevent ESD inside the packaging, you must use shielding bags and film.
Anti-static packaging is typically transparent and can be easily seen through. As well, anti-static packaging is generally offered in various colors.
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Similar to anti-static bags and film, shielding bags and film are also manufactured with anti-static coatings. However, this material is also made with metalized polyester that provides shielding to the contents of the packaging. With the addition of the metalized polyester, shielding bags and films create a total Faraday cage around the product. This material will resist static discharge and protect your electro-sensitive products inside.
This material is made with layers of multiple materials to provide the characteristics desired. For shielding bags, this may include materials such as polyester, static dissipative polyethylene, aluminum, and additional static dissipative coatings.
Shielding bags and film will usually be translucent. Translucent materials can still be seen through, but the material is more smoky and not as clear as transparent packaging would be.
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This type of packaging is used when you also need a moisture or gas barrier for your product, in addition to being anti-static. Moisture barrier packaging can be used for static-sensitive products that are also sensitive to moisture or gas. This packaging is for products where MVTR (Moisture Vapor Transmission Rates) are critical. Additionally, this packaging will shield your product and protect against static discharge.
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Similarly, to shielding bags, moisture barrier bags are also made up of layers of various materials. These layers include metalized polyester, polyethylene, and anti-static coatings.
Moisture Barrier bags and film can be opaque or translucent. The thicker the material gets, the more difficult it will be to see through the packaging. Some moisture barrier material will look smoky, but can still be seen through, while some will be opaque, and you will not be able to see through the packaging.
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There are three categories to consider when looking at packaging for your electro-sensitive products. The number of layers you use will depend on your product and needs.
First Layer of Packaging: this layer physically touches and holds the product. This layer is one of the most critical layers as it will need to provide all the necessary protections for your product. When selecting intimate packaging, you will need to understand your product needs and what things your product is sensitive to. This could include static, moisture and gas.
Secondary Layer of Packaging: this layer is generally used to hold products that are inside of intimate packaging. Proximity packaging is not designed to touch electro-sensitive products directly but can provide an additional layer of packaging and protection.
Additional Layer of Packaging: this layer can be used if the products need additional protection beyond the first two layers. This layer will not touch the product itself and generally is not permitted inside of an EPA. This layer of packaging can be a source of ESD so it is critical to keep this material outside of ESD protected areas.
We are proud to offer multiple ESD packaging options to ensure your products are protected. Once you have determined your product needs you can refer to the chart down below to select the best packaging. We carry various sizes of bags and films of each product to meet your packaging needs.
As well, we would be delighted to work with you directly to determine your specific needs. You can contact us via form or call us at 937-324-.
ESD Fundamentals | ESD Association
Why ESD packaging is so essential | Antistat (US) ESD Protection
-5-1: ESD protective packaging | Electrostatics.net
ESD Packaging &#; Packaging Requirements | Nefab Group
ESD Protective Packaging Solutions | Nefab Group
What Is ESD Packaging and Why Does Your Business Need It? | Bondline
How to Choose the Best ESD Protective Packaging for Your Company | Research Dive
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