Blown Plastic Sheet Film Process

Рет қаралды 192,654

Brentwood Plastics Inc.

8 жыл бұрын

How LDPE polyethylene blown film is made.

Пікірлер: 58

@TheRobertralph 2 жыл бұрын

Very informative. Thank you for making the video.

@TheIncroyale 2 жыл бұрын

Very helpful, thanks you for showing this 👍

@stretchfilm-blownfilmmachine Жыл бұрын

GREAT

@mohammadhatamleh3830 3 жыл бұрын

Are your machines compatible with bioplastic raw materials (PVA, Starch, Glycerin, and other additives)?

@govindgopalarora4593 3 жыл бұрын

Nice

@alexa.davronov1537 2 жыл бұрын

Cool.

@ElephantKiller23 5 жыл бұрын

... and use silicon spray if Your lump sticking to the air ring,much easier

@maimunaaccessories6817 4 жыл бұрын

We'll come

@samaymehta5238 2 жыл бұрын

Best video everr

@samaymehta5238 2 жыл бұрын

Worst*

@granddaddykush5532 3 жыл бұрын

You guys do custom slitting and print? And set up for SWS, DWS, U-Film, J-film, ect??

@BrentwoodPlasticsInc 3 жыл бұрын

@pierrot148 4 жыл бұрын

Hello, I have a question. I understand that molecular orientation is also the cause of the shrinking phenomenon in shrink wrap. As you say, MD-orientation is inherent to blown film extrusion. So, what if I want film that does not shrink? Do you set the nip rolls at the top of the bubble as slow as possible, do you anneal the film , or is there another method?

@jv1702 3 жыл бұрын

Plastic molecules always wants to go back to the original form, before it has been processed. So, film shrinks always a little bit. But you can adjust the shrinking by setting width of the blown film and with cooling for example. So if you want that film doesn't shrink much, keep cooling level quite high and width of the bubble as narrow as you can compared to your machines die. More widht, more it shrinks. Nip rollers are just for the thickness adjustment, meaning, if your machines screw runs for example 50rpm, the more you put speed to nip rollers, more thinner film you get. It doesnt effect straight to the shrinking.

@ryanr9792 2 жыл бұрын

@@jv1702 Sooo what is your question?...

@jv1702 2 жыл бұрын

@@ryanr9792 I didn't ask nothing...

@ryanr9792 2 жыл бұрын

@@jv1702Ok, so what's your point?

@jv1702 2 жыл бұрын

@@ryanr9792 point on what? I'm confused what the hell are you talking about

@ayushbhandari9355 2 жыл бұрын

Life ka truth pata chal gaya

@meteorka1670 3 жыл бұрын

Hello.I need hotmelt film for polyurethane cornice moulding.

@mustobaba6763 4 жыл бұрын

hello i started to work in plastic blown film industry. I found your page as a result of research. I wish you success on your KZfaq channel. I am waiting for your help to share your experiences and training on this subject.

@ryanr9792 2 жыл бұрын

What help are you waiting for? Your work doesn't provide it? For 2 years?

@elcucuy02 3 жыл бұрын

LDPE=clarity

@edwardbushjr.9975 6 жыл бұрын

I've been coming up with a bunch of equations at work, one of them is to figure out pounds an hour on a roll. So it goes something like this...a = layflat, b = pocket 1, c = pocket 2, x = a+b+c, y = pounds per hour going through extruders. so solving for z we have z=x/(2a)(y). Anyone else playing the game might find this interesting. I came up with this equation when we were making some film we cut over onto two shafts and we had restrictions on how many pounds of film on a roll.

@fromthebigd3595 5 жыл бұрын

Sounds good

@rewjik7998 5 жыл бұрын

Do you machines not have meter-counters? Or do they not have a computer that shows poduction parameters?

@DanoHSMM 4 жыл бұрын

TRY THIS... OPEN WIDTH X FEET PER MINUTE X GAUGE X 48 = POUNDS PER HOUR

@genelynignao 3 жыл бұрын

Do you have pvc arc cutter?

@BrentwoodPlasticsInc 3 жыл бұрын

no idea what that is

@nitujaiswal5102 Жыл бұрын

I wants to purchasing LDPE or HDPE plastic roll

@ajayguru7066 2 жыл бұрын

any software knowledge is required in the blow extrusion industry?

@ryanr9792 2 жыл бұрын

@Charles Badstones Exactly..

@BrentwoodPlasticsInc Жыл бұрын

It was made from spare WW2 parts. We never made enough money to upgrade. Still made better film than plants with latest high tech

@brandtcharles7775 Жыл бұрын

I see a bunch of hard wrinkles. Up those tensions on the winder

@yukonstriker1703 Жыл бұрын

I ran an extruder that produced 76" recovery of blown PVC film. LOL this 'bubble' is tiny hahaha

@nzun7689 6 жыл бұрын

Easy work...if you need operator blow film machine i'm ready.

@darshpatadia6826 5 жыл бұрын

Ok I'm looking to hire people but first need to answer my questions

@darshpatadia6826 5 жыл бұрын

When does the film tear like paper?

@darshpatadia6826 5 жыл бұрын

Explain in detail

@ElephantKiller23 5 жыл бұрын

@@darshpatadia6826 when u have light guage,hard material and bubble is in pot ,I mean when is very low :) But if u have soft material and big gauge, sometimes is ok and u have nice round profile ;)

@ElephantKiller23 5 жыл бұрын

@@darshpatadia6826 So I have a question... what to do if u need dart on 100% but u have just 80% ... Explain in detail ;)