Looking for a Mist Maker

Google "misting nozzles" and see if they will work for you.

They come in a variety of droplet size (usually listed in micron) and GPM.

It seems like a pair of lines running along the media with multiple nozzles spaced appropriately might work.

Go to Home Depot or a landscape place and get a cheap landcape/greenhouse mister. If it doesn't work, turn up the pressure or buy some more.

Should cost less than $20.

Just using this site as an example:

http://www.littlegreenhouse.com/accessory/mist.shtml

15 FPS is fast. How absorbent is the paper?

Misters screwed into plastic pipe running across your paper top and bottom come to mind. Question is how far "upstream" do the misters need to be to let the paper absorb the (hot) water.

A power washer pump comes to mind here if you need a fine mist.

This is an extreme example, but:

Put curtains on each side of this set-up to contain the mist. Your paper can run through a slot in the curtains.

Try spraying systems, inc. talk to the reps, pretty informed people. Also BÊTE would be great. These people sprays are theirs are their job, they can give you recommendations, pump requirements, type of spray nozzle (fan, cone, double cone, square, spray angle)

Good luck

Second this. You might also consider air atomization and avoid a pump. How pure is your water supply? Remember, any minerals in the water end up on your product (any that don't clog things up, anyway).

Yes, Spraying Systems are the best in spray technology and have an extremely wide selection of models. I have used their units extensively in industry (also my garden sprayer). Best is they know what they are talking about.

GA

Good Luck, Old Salt

The right place to go for misting spray heads and all sorts of other types:

http://www.spray.com/spray_nozzles/air-atomizing_nozzles.aspx

http://www.spray.com/spray_nozzles/automatic_nozzles.aspx

Turn the pages, look at the pictures, call the factory tech service gurus, buy one and try it out. Guarantee you will find what you want there!

Phoenix911 in #4 got it right, as always.

Good Luck, Old Salt

I agree with Lyn,

Start out with the HD garden misting system to prove your concept.

If it gives you at least some positive results, that means you are on the right path and you may want to contact Spraying Systems and have their engineers work up a spray bar for you that they build and you install.

Professionally manufactured parts and your maintenance dept will save you money in the long run. Do not permanently install the HD mister system, you will regret it. It is a low end consumer system and will not stand up to a fast paced paper converting facility!

A recommendation by several of the contributors for you to contact Spraying Systems is huge, I know people usually recommend companies they are happy with while a poor company will get plenty of bad reviews here too.

phoenix911, bigg, lyn, ORIGINAL MACGYVER, and even Old Salt------>

Why reinvent the wheel spray nozzle when someone has already invented it? Some people after that did a fine job of improving on it!

Good Luck, Old Salt

Misting seems to me like you will need a dryer and time to dry the paper. Would steam get the paper damp enough but allow much faster drying?

Warning, I don't actually know anything about this subject.

Overly dry air happens in winter in the northern hemisphere as soon as the temperatures start dropping.

Is this a "seasonal" problem, or do you have it the whole year round?

I think that you first need to measure and define the atmosphere needed, obtain equipment to do this and then follow some of the good suggestions already mentioned.

If you live in a hard water area, you may want to collect rain water, filter out any dust, then neutralize it if you are in an acid rain area.....it may be easier than handling hard water problems....

Or use some form of water softening machine, they have been around for many years now.

I wish you luck and do let us know how things work out.

By the way, storing paper in a suitable environment has been done for many years for certain types of printing. Whether it is still done today I cannot say, but temperature and humidity were strictly controlled. The paper needed several days to be usable......

Have you contacted your paper supplier?

Maybe these guys can help:

Thanks everyone

I'll look into some of these suggestions.

Good job CR4 responders all answers were very professional. I'll let you know how it works the people that supply our embossing rolls suggested it.

I'm a little late to the discussion, however a few systems come to mind.

I worked for Clearwater Paper for a short time and we converted raw pulp to "mother rolls" of tissue paper 10 feet wide by 8' - 10' in diameter in different bonds. We used a commercially made humidifier because of the Nevada weather.

Here in Nevada, a big seller are the misting systems that are installed on the roof edge of a patio cover, or in a restaurant outdoor setting there are misters putting out a fine cone shaped mist. Another idea is one that just dropped on my doorstep a few weeks ago. One of the scroungers I work with found an entire supermarket vegetable misting system that was demo-ed from a remodel, so I bought the whole thing.

In my opinion, The HOME DEPOT misting solution is most likely going to be your best use of any money spent. You can buy extra nozzles and nozzle adapters to get the misting pattern you need.

http://www.homedepot.com/s/misting+system?NCNI-5

About $25.00 at HD.

If you do set up a misting system like the one from HD, make sure you filter the water and add a scale reducing filter, Those are available where the evaporitive coolers are sold.

Another tip, Place the misting on the underside of the paper path, you don't want a water droplet falling onto your paper and fouling the machine, I've seen it happen.

There have been some very good replies, Hope I can help.

Bryan

Theatres use misting machines usually "directed" from over the stage.

If you ask your local theatre, or pop group, they may be able to help.

Thought about legionnaire's disease?

jt

A Sunday School teacher asked his young class, "Where is Jesus today?"

Johnny raised his hand and said, "He's in heaven." Mary answered, "He's in my heart."
and Robert, waving his hand furiously, blurted out,

"I know! I know! He's in our bathroom!!!"

The whole class went very quiet, looked at the teacher, and waited for a response.
The teacher finally gathered his wits and asked Robert how he knew this, and Robert said, "Well.....
every morning my father gets up, bangs on the bathroom door, and yells 'Jesus Christ, are you still in there?'!"

Good point, nobody mentioned that before and obviously at least one person did not understand why you mentioned this illness....

It needs to be taken into account....

Gentlemen

Typically this is an issue in a system that has a reservoir and that reservoir becomes contaminated with L. pneumophila . Use water from your municipal supply and filter it as I said in my other post. If you are still concerned about L. pneumophila then inject a 12.5% sodium hypochlorite solution in the piping or reservoir to bring the dosing to 2.0 PPM. That is what we did for our reclaimed wastewater when we used it for any type of spray application. You could also try an ozone generator for disinfection. If you use the sodium hypochlorite solution, you will end up with clogging issues on the misting nozzles. Just use the Municipal water supply and filter it!

From Wikipedia:

L. pneumophila thrives in aquatic systems where it is established within amoeba in a symbiotic relationship. In the built environment, central air conditioning systems in office buildings, hotels, and hospitals are sources of contaminated water.^[13] Other places it can dwell include cooling towers used in industrial cooling systems, evaporative coolers, nebulizers, humidifiers, whirlpool spas, water heating systems, showers, windshield washers, fountains, room-air humidifiers, ice-making machines, and misting systems typically found in grocery-store produce sections.^[14][15]

The disease may also be transmitted from contaminated aerosols generated in hot tubs if the disinfection and maintenance program is not done rigorously.^[16] Freshwater ponds, creeks, and ornamental fountains are potential sources of Legionella.^[17] The disease is particularly associated with hotels, fountains, cruise ships and hospitals with complex potable water systems and cooling systems.

Respiratory care devices such as humidifiers and nebulizers used with contaminated tap water may contain Legionella species, so using sterile water is very important.^[18] Other sources include exposure to potting mix and compost and misting systems in produce sections of grocery stores.^[19]

Bryan

Theatrical misters do not use water. They use a special non-aqueous solution.

Just think of the problems musicians would have with their instruments.

My son has these in his bachelor pad basement, along with a wet bar and computer controlled strobe lights.

I think you may have misunderstood me when I said "theatre" misting to mean create stage effects. (fogging, snow, etc.)

Misters are now used in many public places to disinfect inaccessible areas of the building and the air, by the use of a fine mist sprayer. This "mist" can be seen when a intense (stage) light is shone through it, otherwise invisible to the eye.
(Antimicrobial Fogging, Misting, & Vaporization.)

I thought it possible that an atmosphere of sufficient humidity could be created without actually depositing any liquid on the paper?
I have very little knowledge.

Because I do not like them (the mists affect me later) I mention the legionaries.

jt.

Brain cells come, and brain cells go, but fat cells live forever.
You don't stop laughing because you grow old; you grow old because you stop laughing.

A farmer was milking his cow. He was just starting to get a good rhythm going when a bug
flew into the barn and started circling his head.
Suddenly, the bug flew into the cow's ear. The farmer didn't think much about it,
until the bug squirted out into his bucket. It went in one ear and out the udder. (boo-hoo)

Having very little knowledge never inhibits me from posting, why should you be worried?

The OP needs to impart humidity/moisture into his product as it moves off a roll at 15 FPS in what I assume is a relatively short distance.

Aside from directing steam at both sides of the product, some means of increasing the moisture content of the paper in a short distance is desired.

I seriously doubt that the systems to which you refer are used during any type of public activity and certainly not to disinfect crowds of unsuspecting, potentially allergic people, ever.

I believe that, "This "mist" can be seen when a intense (stage) light is shone through it" is nothing more than pot/cigarette smoke, or residual mist from a fog machine used in the show.

The fogging and misting is performed only in uninhabited areas to kill germs and sterilize entire areas.

EPA Approves Protocols for Antimicrobial Fogging & Misting ...

Gas and vapor technologies are being used with fogging or misting devices to disinfect, sanitize or sterilize enclosed areas. Many of these systems are remarkably effective at decontaminating all the hard, non-porous surfaces within an enclosed room. - See more at: http://www.ats-labs.com/industries-served/antimicrobial/antimicrobial-fogging-misting-vaporization-efficacy-testing#sthash.nrDCASQr.dpuf

Theaters use misting machines usually "directed" from over the stage.

Lyn,

Correct. It is really a fog machine like the ones people use to decorate their houses on Halloween and would do nothing to help humidify the tissue stock because it uses "fog fluid". You could set up a stage and invite some heavy metal bands to ROCK the joint but still, no humidity!

ROCK ON MAN

micro drop mist sprayers (been used to cut soft metals)that will be best choice for this .

in this kind of misters ,you can increase/decrease the liquid dosing and the target area.

also the controlled dosing will give you the equal moisture on every mm. for this unit you will need the compressed air to (7bar) to drive .

Few here have ever learnt German, or they would better understand what crap everyone here is talking about!!!

See who works it out second! (well I was the first!!)

Why are you adding moisture to the paper? Static?

The embossing company suggested it to help with the bonding effect that the crimp causes on the napkin. We went with another supplier that don't use bonding, and plant manager says it was done like this in the old days.

justthecowboy

Have you been able to get something worked out on the mister nozzles?

I have paper converting experience if you have other questions? Let me know and I will try to assist in any way! Simple questions are always a good topic for this forum, highly technical questions too, just be prepared and give as much information as possible. Where are you located?

We just got the machine I mentioned to mist the paper, it seems to work well for what we wanted. The unbounded paper we got in will now hold together in the embossing process. The machine is from Germany from a company named WEKO.

It applies a small stream of water onto a rotating disc, which then flings the water out in a fine mist pattern; the machine has 6 of these discs.

Thanks for the input

Harvey

Very nice to hear it works and the update.....thanks.