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Grafica’s NEW – Hybrid Dryer (Gas + Electric)

October 2, 2018 2 comments
Grafica_Hybrid_Dryer

Grafica’s Hybrid Dryer – Gas + Electric

Grafica’s hybrid dryer is meant for drying jobs printed with wide range of inks on a variety of substrates.

Single touch screen display automatically diagnosis for safety & faults during operation supported by artificial intelligence system with error message display on screen with alarm

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Grafica’s Hybrid Dryer – Gas + Electric (Touch Screen Panel)

It’s insulated with high density rock wool and double fabrication throughout to retain maximum heat inside the chamber while keeping the outside relatively cool

Exceptionally imposing airflow management system is facilitated by a very powerful low noise blower that discharges air circulating uniformly around the entire heating chamber’s inner hood through strategically placed holes. Incoming airflow passes through heating system to the printed surface. Because air creates a vacuum-like behaviour at the side of the conveyor and re-circulated to the top again.

Powerful air re-circulation with air purification system effectively scrubs solvents/ water away from the ink surface, thereby allowing faster drying times while lowering temperature requirements for a superior processing.

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Grafica’s Hybrid Dryer – Gas + Electric (Top View)

Heated air is recycled, which in effect reduces power consumption considerably, the heating bank consisting of extremely effective heaters are not continuously engaged and drawing power in order to maintain temperature setting. Air circulation system maintains equal heat distribution all over the chambers. External variable airflow damper is provided to adjust exhausted air, according to solvent saturation during production, so that the drying system can always operate in its most efficient manner thus reduces power consumption.

To further improve efficient and energy conservation, a tool- free adjustable entry and exit stainless steel shields are provided to further prevent heat from spilling out to the production area. Exhaust fan below the electrical box is purposely intended to keep the electrical components cool and fully operational.

Single touch screen display with high quality thermocouple sensor, keeps precise temperature inside the chamber to ensure perfect control of drying.

The dryer’s inner chamber has a separate module from the heater to prevent escaping heat from spilling out into the production area.

High quality PTFE coated antistatic conveyor belt comes as standard, which is firmly driven by an AC geared motor with a frequency inverter for precise speed control—a handy feature at times when the belt is fully.

The rubberised conveyor drive roller is specifically cambered for superior belt tracking irrespective if the workload is off centred drying on the conveyor.

The dryer is completely portable in design for ease of mobility or it can be anchored to the floor with its own foundation bolts for a more permanent location.

Finally, to keep the dryer in optimum operation condition, a fine graded filter collects fine fibers and lint which prevents them from detrimentally sticking to the heaters themselves.

Grafica_Hybrid_Dryer_SideView

Grafica’s Hybrid Dryer – Gas + Electric (Side View)

Standard Features:

  • With removable filter to collect fine fibres, lints & dust particles
  • Compact design
  • Single touch screen display, simple to operate
  • High quality Antistatic PTFE coated conveyor belt
  • Powerful blower to recycle heated air circulation with exhaust system to remove solvent laden air from the chamber
  • Extremely effective heaters with special coating to deliver maximum efficiency and to maintain consistent temperature (max. 200 C / 390 F)
  • Equal heat distribution all over the chamber
  • Variable external airflow damper is provided to adjust the exhausted air, according to solvent saturation during production.
  • High density rock wool insulated heating chamber with double fabrication to retain maximum heat inside the chamber while keeping the outside body relatively cool
  • High quality thermocouple sensor, keeps precise temperature inside the chamber to ensure perfect control of drying
  • AC geared motor with a frequency inverter to set precise conveyor belt speed (Bidirectional)
  • Real Time conveyor belt speed control
  • Rubberised drive roller specifically cambered for superior belt tracking
  • Fine-graded air purification filter to collect fine fibres and lint which prevents them from detrimentally sticking to the heaters themselves
  • Sensor to detect filter choking with error message on screen and alarm
  • Tool-free adjustable entry and exit stainless steel shields provided to prevent heat spilling out to the production area
  • Castor wheel for ease of mobility
  • Exhaust fan inside the electrical panel to keep the components cool
  • In the event of electrical failure a special mechanism is designed to remove material from the chamber
  • The system automatically diagnosis for safety & faults during operation supported by artificial intelligence system with error message display on screen and sound an alarm
  • Safety button placed on both ends for emergency stop
  • High quality gas burner with solenoid and gas volume regulator with all safety
  • Single & double belt models available on request

Click on the link given below to download catalogue & technical specifications:

Grafica’s Hybrid Electric-Gas Dryer

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Textile screen printing workshop for students of Sophia Polytechnic, Mumbai

Hi Friends,

It is my pleasure to inform you that on 27th July 2017, I conducted a workshop on Advanced Textile Screen Printing for 20 students from Sophia Polytechnic, Art and Design Dept., Mumbai. As informed by their faculty, these students have completed their two year Diploma Course in Textile Designing which comes under Directorate of Art, Government of Maharashtra.

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Click here to view the glimpse of the workshop.

The students, led by their faculty Kaveri Shelar, whole heartedly mentioned in their feedback that the workshop was informative and that they really enjoyed the practical demonstrations of screen making and digital like quality direct to garment screen printing. They said that such practical knowledge/industry interaction is a big missing link in their study.

They shared in the introduction session that they have had basic theory and practical on manual textile screen printing. So, DMI’s workshop was an eye opener as they could see world class training facilities having advanced garment screen printing technology.

With several years of my experience in manufacturing and education in screen printing, I have also done extensive research in textile printing industry. And I found that garment printers have heavily investing in automation but they even lack some basic knowledge and technique required to produce good printing quality.

There is an illusion that by investing in the best & latest automatic screen printing machines one can produce good quality prints. But lack knowledge in pre press, designing, colour separation, colour management and screen making printers are struggling to get best from such expensive machines. I am sure many of you agree that the garment industry lacks qualified and skilled workforce who are sound in this area.

Most of these students said that there is lack of cooperation between academia and industry. So, DMI has now taken a noble initiative to educate students from textile/fashion institutes and bridge the gap between industry and academia.

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In this regards DMI is proposing to various textile and fashion institutes to allow us to set up advanced textile screen printing training centres within their premises so that the next generation of students practically learn textile screen printing with right knowledge.

I urge all textile and fashion institutes to send their students to DMI for such workshops so that they develop interest and get encourage.

Please share your thoughts on this subject.

Bhargav Mistry

DMI is truly an International Screen Printing Institute!

July 23, 2017 2 comments

Hi Friends,

My recent houseful workshop had 19 overseas participants (South Africa – 10, Egypt – 5, Japan – 1, Nepal – 2 and Sri Lanka – 1). In all there were 59 participants.

DMI is now truly an international screen printing institute!

DMI_Textile_Workshop_20170719_108

There is a saying that sometimes photo speaks more than words. So let me share with you photos of my recent textile workshop.

CLICK HERE AND ENJOY THE PHOTO GALLERY

Have a nice & lazy Sunday…

Bhargav Mistry

DMI’s Creative Calendar – A Master Piece For Every Printer

June 23, 2017 4 comments

Hi Friends,
 
See photos gallery of DMI’s New Luxury & Creative Calendar.

DMI_Calendar_2017-2018

This calendar will be a master piece & reference guide for all Graphic Designers, Screen Printers, Packaging Product Developers and all those who are constantly searching for new innovative ideas in Printing, Packaging, Print Finishing for value addition to make more profits from existing facility.

In this calendar we have printed 23 special effects and combinations of UV Inks, Metallic Inks & Varnishes plus 10 different reflective designs (Micro Embossing Screen Printed).

We have also printed with UV CMYK Inks by Screen Printing using DMI’s new FM Screening Technique on FOIL Laminated Sheets and Special Matt UV White on Black Paper to create and artistic effect on black background.

I am sure you will use this calendar every day in your company for reference and designing purpose. This calendar will surely help you to get new ideas to make better profits.

This calendar was screen printed in my recent workshop and all those 50 lucky participants could see the making of this calendar LIVE.

Plus they could also see and note all the technical informations which I demonstrated during my workshop.

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Click here to see the photo gallery of my recent workshop and the making of DMI’s New Luxury & Creative Calendar

If you wish to earn more and stay ahead in competition than order your copy today.

The calendar can be ordered by sending SMS or WhatsApp on +91 88794 49765

or

You can also email to: sales@graficaindia.com

Don’t  forget to subscribe my blog to get regular updates about my workshops and many such technical and informative contents.

You will find this option on the top right and by entering your email id you will automatically receive notifications whenever I post any information on my blog.

DMI

Have a creative days ahead and stay in touch.

Bhargav Mistry

DMI to demonstrate 23 NEW Combinations in Print Finishing & Special Effects

June 4, 2017 2 comments

Hi Friends,

If you are a packaging product developer or a graphic designer who are constantly searching for new ideas / innovative concepts in Printing & Packaging, then my upcoming workshop on 12-13-14 June 2017 on Graphics, Print Finishing, Special Effect, and Value Addition would be the most important event of this year for you.

Because in this workshop, I will be demonstrating for the first time, 23 New Creative Ideas in Print Finishing & Special Effects for value addition on your offset and screen printed jobs.

To demonstrate all these 23 effects in just 3 days, I have prepared more than 40+ Screens of different mesh count and thread diameters. Even more than 18 to 20 types of special effects UV Inks / Solvent Inks / Metallic Inks / Pearl Inks / Spot Colour Inks and Varnishes will be used in different combinations to create dramatic effects on offset and screen printed jobs on various substrates like paper and foil laminated sheets.

For the first time in DMI, I will be demonstrating how to create amazing ‘Black and White’ effect, screen printed on black paper with complex foiling technique without using any kind of dies or templates.

Moreover, I will also be teaching monitor calibration, colour management system and software, digital proofing with proof certification, plus stochastic screening techniques to produce MOIRE FREE digital-like quality prints with traditional screen printing process. EVERYTHING LIVE!

And I will be showing many new tools and software which will speed up your selection of any complex images to create special effect on selective areas.

Today, all the screen and offset printers are constantly searching for new ideas and innovative concepts which can create three dimensional effects on two dimensional prints. Let me tell you that currently screen printing is the only process which can produce that third dimension effect with minimum investments and maximum returns.

As such, I am proud to say that DMI is the only institute in the world where you get to learn print finishing and special effects on screen/offset/packaging and also textile screen printing.

Currently my forthcoming workshop in June’17 is overbooked and we have closed the registration. However, if you are in the process of creating or developing new packaging products, brochure, catalogues, books, diaries, flyers, invitation cards, calendars, posters or any type of exclusive graphic prints for your customer, then do visit DMI soon. You will be able to see many new creative samples on display at DMI’s sample gallery. This will help you in your designing and can save you lot of money.

If you wish to see how to print all these new special effects LIVE, then do subscribe to my Blog (www.bhargav.com) because soon I shall be announcing my next workshop dates on graphics and value addition.

Believe me, only within a week DMI workshops gets completely booked. So, once I announce the next dates, do register quickly before we close the registration.

In the mean time enjoy the monsoon season ahead!

Bhargav Mistry

Technical Tips on Screen Printing by Bhargav Mistry, DMI – #6

April 15, 2017 1 comment

Tips on squeegee blade (squeegee rubber)

  • Maintain a reasonable gap between the squeegee edge and inside of frame
  • Short gap will negatively affect print quality, performance, uniformity of ink deposit; and it also shortens the life of stencil, fabric & squeegee
  • Squeegee should be only 2” bigger than the print area i.e. for printing 30” wide squeegee should be 32” only

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  • Keep ends of the squeegee rounded to get good registration and uniform ink deposit

Squeegee with rounded corners


Squeegee with sharp corners

  • Always maintain sharp squeegee while printing and use squeegee sharpener regularly.

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nano-sharpener

  • Storage of squeegees is also very important. Its advisable to store the squeegees vertically (squeegee rubber side up) and ensure no objects are in contact during storage.
  • Good air circulation is also recommended to keep the squeegee dry after cleaning with solvents.

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  • Do not use aggressive solvents to clean the squeegees
  • Do not wipe the ink from the squeegee after printing with any sharp metal or hard materials. This can damage the squeegee edge.
  • Do not print squeegees with one edge for longer period always use both edges after few hours or impressions to maintain the edge sharpness and parallelism

Finally I would to remind you to register for my next Graphics workshop schedule in June 12 to 14, 2017.

This time you will learn all about linearisation right from pre-press to screen making to screen printing including colour management system, digital workflow, ICC profiling and digital proofing on Inkjet Printer before final screen printing. Everything will be displayed live.

Plus for the first time you will also learn all about Monitor Calibration, Digital Proofing & Certification.

Enjoy and have a nice weekend.

Bhargav Mistry

Technical Tips on Screen Printing by Bhargav Mistry, DMI – #5

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Screen Dryer

Q – Why is my direct emulsion stencil breaking down during printing?

Underexposure (the most common cause of stencil failure)
Use an exposure calculator to determine proper exposure time.

Screen not fully dry before exposing
Use proper screen dryer after coating emulsion and give enough time to dry before exposing.

Screen not fully dry before printing
After developing let the water to completely evaporate before sending the screen for production. If possible keep screen in dryer for min 20 mins @40℃ after developing

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Emulsion Coating Machine & Screen Dyer

Coating technique
Too many coats (wet-on-wet) will increase the emulsion build up drastically and slow down emulsion dry. Reduce number of coats (wet-on-wet).

Improper handling
Use yellow safelights. Insufficient degreasing or degreased screen must have been touch by naked hands/fingers.

Screen Tension too low
Use the screen tension recommended by the mesh manufacturer.

Emulsion thickness too low
Ensure that the emulsion build up is proper apply multiple coats or emulsion solid content too low.

Emulsion not compatible with Inks
Use water resistant emulsion for Water based Inks and use Solvent Resistant Emulsion for Solvent Based Inks.

Too much squeegee pressure
Reduce squeegee pressure and reduce off-contact distance (distance between screen mesh and substrate). To high off-contact also increases squeegee pressure.

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Screen is clean to often
Do not let the ink dry in the screen. Flood/Fill the mesh after each print stroke. Do not use fans on the top of the print area. Use less aggressive solvents to clean the screen. If the ink is becoming too tacky this can also lead to emulsion break down. Use screen hardeners to increase the resistance and durability of the emulsion.

Emulsion not stored properly or outdated
Always store the liquid emulsion in a refrigerator temperature between 20℃ to 23℃. Write the date on the can after sensitised. Dual Cure Emulsion has to be consumed within 1 to 3 months depending on storage and manufacturer. Single Component ready to use emulsions generally last for 6 months to 1 year depending on storage and manufacturer.

Improper sensitizing
Ensure that diazo is thoroughly mixed into the added water, and then into the emulsion. Use only recommended amount of diazo. Always stir diazo in the emulsion very slowly and use only after one over night or 12 hours after mixing.

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