TECHNICAL DATA SHEET

Polygloss Inks :

This quality of inks have been very carefully formulated to meet the quality requirement of Flexo and Gravure printing system respectively for carrying out surface printing jobs on various substrates. The most wider application of this ink system is in the printing of pre-treated Polyethylene and Polypropylene, although it satisfies the adhesion characteristics on different difficult film which sometimes cannot be achieved with any other ink.

- Substarte : Polygloss ink provides good adhesion on treated Polyethylene, treated Polypropylene, Polyester, Nylon, PVC coated cellulose film (PT), aluminum foil. It can also be printed on paper and Board.

- Ink Reducer : The selection criterion of solvents for reducing the ink to print application viscosity is dependent upon the print process (Flexo or Gravure), press speeds and drying condition.

- Wash Up Rollers and stereos : Marudhar Flexo inks in general are safe to use with most rubber stereos. Incase of photopolymer plates the solvent system requires modification to ensure optimum plate life.

- Shade Range : Standard shades are available in our range. Specific shade matching is undertaken against customers special demand. Sometimes restriction on pigments meeting specific resistance property requirement may cause hindrance in matching the shade in absolute term. Customers approval is sought prior to releasing such ink.

- Light fastness : The Light fastness characteristics is generally provided by the pigment. Reasonable Light fastness is available from the pigments used in our application, however in case of extended exposure to direct sunlight this property must be specified while ordering so that right grade of light fast pigment is incorporated.

- Resistance Property : For general purpose printing in built propertied such as high surface slip, scratch resistance and high gloss have been provided. These inks do not offer heat resistance therefore not suitable where heat sealing on the print is desired. In case of jobs requiring improved resistance to water, deep freeze, milk, fruit juice, oils and ghee these inks are not recommended . Similarly where resistance to alkali and detergent is required these inks are unsuitable.

- Lamination : Not recommended for adhesive lamination in spite of the fact that these inks have good adhesion on polyester and BOPP films.

- Special Note : The aforesaid technical information has been based on the tests carried out in our laboratory and experience gained in the field. Since we have no control over the operating conditions at the end users point it is imperative that customer satisfies themselves by carrying out their own tests to asses about performance  of each product prior to commencement of actual print run. No warranty therefore can be given and our sales are governed by standard terms and condition.
 

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Reverse Polyester Inks :

These inks are specially suitable for printing of reverse polyester films possessing good printability, good light fatness, at varying press speeds. Good adhesive lamination characteristics thus satisfying the lamination requirement with aluminum foil, polyethylene film, paper and board for a variety of packaging application.
       The prints can be laminated with the usual polyurethane based two-component adhesive.
 
- Substrate : Marudhar reverse polyester inks provides good adhesion on untreated polyester film. In case of special requirements to compound stability in-line corona pre-treatment of the respective substrate materials is recommended.

- Ink Reducer : Inks are reduced to print application viscosity by recommended reducer, a mixture of MIBK and Toluene. Where printing is done at very high speed a mixture of Toluene and Ethyl Acetate can also be used. The recommended retarder is MIBK. Retarder, however, should be avoided in order to prevent from a retention of solvents.

- Wash Up : The recommended reducers can be safely used for cleaning of wash up of Gravure cylinders.

- Shade Range : Pigmented as well as transparent (metal complex dyes based) colors in full range are available. Specific shades can be matched against customer's demand.

- Lamination : Bond strength of laminate is very much dependent on the adhesive quality, ink deposition weight, adhesive coating weight, nature of substrates laminated ad nature of the job. It is therefore recommended that right quality of adhesive be selected and uniformity of coating weight is properly controlled in order to get standard lamination results. Curing of laminates at controlled temperature and humidity for a minimum of 48 hrs is indispensable to achieve best lamination bond value.

- Special Note : The aforesaid technical information has been based on the tests carried out in our laboratory and experience gained in the field. Since we have no control over the operating conditions at the end users point it is imperative that customer satisfies themselves by carrying out their own tests to assess about performance of each product prior to commencement of actual print run. No warranty therefore can be given and our sales are governed by standard terms and condition.
 

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Super Polygloss Inks :

These inks have been formulated for surface printing of polyethylene and polypropylene films either by Gravure or Flexography process. Super Polygloss Ink series offers high print strength, high gloss and good printability on wide range of substrates. These inks satisfies the quality demand in respect of vegetable oil and wide range of substrates. These inks satisfies the quality demand in respect of vegetable oil and spice resistance. However, for aggressive type of vegetable oil ( mustard oil ) and spices ( turmeric, etc. ), the recommendation is to use two pack AR inks.

- Substrate : Super Polygloss inks when printed on pre-treated polyethylene and polypropylene having at least 38 dynes/cm of treatment level will ensure good adhesion. Uniform treatment level throughout the length and breadth of the film is essential or optimum resistance properties.

- Ink Reducer : The selection of reducer is guided by the print process followed either Gravure or Flexo, press speeds and drying condition. Incase of Flexo process the recommended reducer is a mixture of IPA and Butanol and for Gravure printing process a blend of IPA and Toluene satisfies the printing condition. Butanol acts as Retarder and its proportion may be decreased or increased depending upon the press speed.

- Wash Up : Marudhar Super Polygloss inks in general are safe to use with most rubber stereos. Incase of photopolymer plates the solvent system requires modification to ensure optimum plate life.

- Color Range : Customized shade matching is preferred. Most of the standard print buyer's shade are readily available.

- Resistance Properties : Super Polygloss inks do not offer high heat resistance therefore is not recommended where heat sealing is done on the printed area. They are also not suitable where chemical resistance properties such as alkali and detergent resistant is required for which our two pack AR/SR Inks are recommended. It offers resistance properties to vegetable oil, Vanaspati ghee when packed in printed pouches following BIS specification. Elevated temperature packing may cause failure in ink adhesion.

- Lamination : These type of inks are not recommended for adhesive lamination in spite of the fact that these inks have good adhesion on polyester and BOPP films.

- Special Note : The aforesaid technical information has been based on the tests carried out in our laboratory and experience gained in the field. Since we have no control over the operating conditions at the end users point it is imperative that customer satisfies themselves by carrying out their own tests to assess about performance of each product prior to commencement of actual print run. No warranty therefore can be given and our sales are governed by standard terms and condition.
 

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