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Thank you so much for all your input. I found table top type and hand held type ultrasonic welders. What are the major differences as in performance for small welding application such as mine? I would like to test using a hand-held version, since they seem to be slightly cheaper, but if this...

Great! I will look into your suggestion. Do you know anything about ultrasonic welding of small plastics? How do they compare to heat stakes? Costs, ease of use, product appearance, etc. Are there hand-held hot stake machines? Thank you

Thank you again! PS will be injection molded during production (right now, machined parts). There is freedom to adjust the design, however, holes will be less than 2mm in diameter and the smaller the better. Can these hot-stake holes be any shape, like rectangular 1mm x 2mm? I am not...

Thanks patprimmer! I would like to look into welding PS-PS, no membrane (I'll secure the membrane mechanically). The weld can be at few spots around the perimeter of the PS frames instead of the edge length, though it could be either way. The spot/stitch must be less than 2mm in width. The...

Hello, I have been working on a small plastic part that consists of two smaller pieces and a membrane. You can think of it as two 1-2mm thick plates with a hole in the middle (face dimension ~ 50mm x 15mm) requiring adhesion around the top and bottom edges (edge is roughly 2mm wide) with...

Thanks!

I meant to say regenerated cellulose (probably means the same thing as reconstituted cellulose).

thanks everyone for some great inputs! dgowans, in-mold decoration is a great idea. I'll think more about that. Does it matter if I use cellulose "decorative film" and other plastic to be injected? OR would it be most ideal if the injected plastic is similar kind, such as cellulose acetate...

Thanks again Compositepro! My adhesion requirement does not concern strength too much. I just need the film to be stay put while in use, but the use is completely stationary and should not require strong bonding. If I cannot "easily" peel the film off substrate using my fingers, then it...

I am using Standard Regenerated Cellulose Dialysis Membrane. So maybe it's not a cellophane? Either way, I must attach the film onto substrate, which is a small, thin (~1mm wide) pillars. I cannot coat the entire surface of membrane with adhesive; only along the pillars. Thanks for all the...

Is there any possibility of having heat sealing done from one side? This way, it's less messy cut down on material costs. again, I have freedom of picking substrate material (plastic).

Hey thanks Compositepro! I'm exploring basics right now for prototyping the process. Once up and running, I'm expecting manual labor first; someone brushing on the glue and stick the film. Contact area is about 1mm in width, and have multiple pillars (substrate). thanks again

ADD>> I forgot to mention something. If you have good suggestion for substrate material (polymer) that's fairly cheap and easily injection molded, AND works well in attaching cellophane either heat seal or adhesive, please let me know. I tried "gluing" cellophane film and polystyrene using...

Hello everyone, I'm completely new to Polymer Engineering, but I have a problem on hand and trying to figure out a solution. I need to attach cellophane film to a substrate. The substrate at this point is polystyrene, but could be anything, as long as injection molding can be done (and it is...