The document describes various coating and converting machine designs offered by Prathith Consultants for applications such as adhesive coating, breathable barrier coating on nonwoven fabrics, split leather manufacturing, insulation tape manufacturing, surgical tape manufacturing, spray coating and lamination for foam conversion, paper saturation, and packaging tapes. It provides details on coating methods, challenges, parameters, and passes for different machine designs along with photos and contact information.

1. By
Shrikant Athavale
Prathith Consultants
Pune India
114-06-2013

2. 214-06-2013
We Offer
Machines Designs for
Specialty
Adhesive / Cost film Coating
Machine
And
Converting Machine Designs

3. 314-06-2013
Adhesive Tape Coating Machine with
on line Printing and Back side Release
coating

4. 414-06-2013
Coating methods

5. 514-06-2013

6. 614-06-2013
Machine Design

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Machine Photo

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Coating Machine for breathable
substrate
Breathable Barrier Coating
on
Non Woven Fabrics

9. Coating Method : Gravure ( Standard )
drying
tunnel

10. The Challenges
There are two challenges in this Product Development
1. The coating is water based , but the min. coat wt. required
is 10 gm / sq.mtr.
2. The original Air Permeability / Porosity , must be
maintained

11. drying
tunnel
Gap of
approx. 10
microns

12. 2. The original Air Permeability / Porosity , must be
maintained
This can be met with help of a Air Blower attachment as
shown in the figure on the next slide.

13. drying tunnel
Air Blower
Air under pressure
will be blown on the
coated fabric just
after the Myer bar

14. The Air velocity could be easily altered by adjusting the
dampers on the Air Blower.
By blowing air on the coated web just after the Myer
bar location, the porosity of the fabric will be
maintained.

15. Other Coating Parameters
This is a water based coating
The temp setting inside the Drying zone as under
Zone 1: 70 deg C
Zone 2: 80 deg C
Zone 3: 120 deg C
Zone 4: 70 deg C
Coating Speed for the Trial Run : 20-25 mtrs / min.

16. 1614-06-2013
Coating Machine for Split Leather
Manufacturing
Water borne adhesive is coated on release liner, by comma
coating method ,the same is dried in the drying tunnel and
then it is laminated with the leather sheets at the lamination
end. We have specially designed the lamination , so that
leather can feed in sheet form with help of a conveyor
First Pass

17. 1714-06-2013
Coating Machine for Split Leather
Manufacturing
Second Pass
On another release liner , water borne , polyurethane ,
skin coat is applied , dried, and rewound.

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Third pass
In this pass the body coat is applied on , the same
side as skin coated side , earlier in second pass.
The dried web is wound on the rewind station.
Coating Machine for Split Leather
Manufacturing

19. 1914-06-2013
Innovative Coating Machine for
Insulation Tape Manufacturing
Coating pass no. 1 :
On the first Coating station
, PU water Borne dispersion
( Ready to use ) is coating
on , Silicone Release liner ,
by Kiss Roll coating method
. The coated Si liner then
enters the drying zone, to
flash out the solvent that is
water , to obtain a uniform ,
dry PU film .
A dry coat weight of
approx. 10 Gm/ sq. Mtr is
desired and achieved
Coating pass no. 2 :
The coated web then
enters the second coating
station . Here the RVNRL
compound is coated on
the same side as PU
coated earlier , by Comma
Coating method. Here
also the coated Si liner
then enters the Drying
zone , similar to coating
Pass no. 1
A dry coat weight of
approx. 35 Gm/ sq. Mtr is
desired and achieved
Coating Pass no. 3 :
The coated web then
enters the Third coating
station . Here the HM PS
Adhesive is coated on the
same side as ( PU +
RVNRL )coated earlier ,
by Roller Coating
method.
A coat weight of approx.
25 Gm/ sq. Mtr is desired
and achieved.

20. 2014-06-2013
Innovative Coating Machine for
Surgical Tape Manufacturing

21. 2114-06-2013
Innovative spray Coating Machine
And
Lamination for Foam Conversion
The water borne adhesive is sprayed
Dried with help of hot air impregnation
And
Then laminated with other substrate online

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The adhesive coated substrate in roll form is
laminated with other substrate in roll or sheet form
online

23. 2314-06-2013
For Paper Saturation

24. 2414-06-2013
No Noise Packaging Tapes

25. For more Information : www.psadhesive.com
Contact Details
Email : shrikantathavale@psadhesive.com
Personal Email : psatechno@gmail.com
Cell : 00 91 7588288204
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