Pap-Tech Engineers & Associates

The Photovolt Type Brightness Reflectance Tester is a modern, advanced instrument designed for electronically measuring and digitally presenting the brightness, opacity, and gloss of paper and other similar materials. It works by angular reflectance and ensures highly precise and reliable results. The Pap-Tech Reflectance Meter, built with imported optical components, provides unparalleled accuracy for various paper quality assessments.

Key Features

• Precision Measurement:

  • Provides precision measurements with a deviation of less than ±0.5% FS between instruments.

• Brightness Measurement:
  Measures the reflectance of light using a deep blue gelatine filter #49 with an integrated selenium photocell for highly accurate brightness readings.

• Opacity and Gloss Measurement:

  • Opacity: Uses a green filter from the tristimulus filter set to measure material opacity.
  • Gloss: Measures specular reflectivity at a 75º angle of incidence using a glass filter for accurate gloss assessment.

• Accessories Provided:

  • White Enamel Standard: For calibration.
  • Polished Black Glass: To represent minimal reflectance.
  • Cavity Sample: Represents zero reflectance.

Technical Specifications

• Sensor: Selenium Photocell.
• Brightness Search Unit: Includes a deep blue gelatine filter, an infrared-absorbing glass, a photovoltaic cell, and a light source.
• Opacity Search Unit: Equipped with a green filter from the tristimulus filter set.
• Gloss Search Unit: Features a glass filter for measuring gloss at 75º angle of incidence.

Standards

The Photovolt Type Brightness Reflectance Tester is compliant with the following TAPPI standards:

• TAPPI T519
• TAPPI T525
• TAPPI T527
• TAPPI T534

It is used for determining the smoothness and porosity of paper and board. It is based on rotameter airflow principle. It is provided with three imported variable area flow meter tubes from "Solertran Mobrey LTD., UK " and accesories.

The Bendtsen Smoothness & Porosity Tester is used for determining the smoothness and porosity of paper and board, based on conceptual design of Dr. Bendtsen.

Standards:

• As per TAPPI Um535,DIN 53108,ISO 5636/3,8791/2,SCAN P21,P60,BS 4420.

Technical - Specification :

Measuring range :
5-150ml/min or 50-500 ml/min or 100-3000 ml/min.

Electronic GSM Balance It is used for measuring the basis weight (GSM of paper )and other similar sheet materials by weighing a small test sample with given dimensions. The GSM of the specimen is being displayed directly on Digital Panel Meter. It is suitable for different size of paper through keyboard selection.

Digital Quadrant Scale is intended for measuring the GSM of paper and other sheet materials by weighing a small test sample with given dimensions. The GSM of the specimen is being Displayed directly on Digital Panel Meter with accuracy 0.01 GSM

Features :

• Covered with Transparent Shield.
• Stainless Steel tearing templates.

It is used for determining the folding endurance of all kinds of Paper, Paperboard, Foil & Films with a standard folding speed per minute. Kohler Molin Type Folding Endurance Tester Loading clamps of dead weight type giving standard load of 800 gm during the test provided along with Five Figure impulse Counter having hold and zero setting.

The Equipment is used for determining the Folding Endurance of all kinds of paper, cardboard, foil and films up to 0.15 mm. The folding effect on the specimen, loaded by weights, is exerted by the oscillating and rotating movement of the upper clamps.

Standards:

• As per TAPPIT-423, ISO 5626.

Technical - Specification :

• Two specimens can be tested simultaneously. The number of folds is registered by two counters, which are stopped automatically, when the specimen breaks.
• Folding clamps quick grip type of stainless steel for a strip width of 15 mm.
• Absolutely vibration free runs of folding clamp, due to the absence, of a conventional geared drive.
• Loading clamps of with weight bars and weights steps of 50 g give loads between 1.96 and 9.32 N. Standard load according to SCAN and ISO is 7.85 N (corresponding to a weight of 800 g).

Stiffness Tester

The Stiffness Tester is an advanced instrument designed to evaluate the stiffness and resilient qualities of materials such as paper, plastics, cardboard, light metallic sheets, foil, and other flexible materials that exhibit comparatively strong bending resistance.

In this test, the specimen is bent by 15 degrees at a constant speed. Once the specimen reaches a 50 mm load length, the bending moment required to bend the specimen is measured in g-cm units, and the stiffness of the material is determined. The rotation occurs clockwise allowing for stiffness measurement.

The tester is equipped with a digital readout, providing fast and accurate test results for enhanced reliability and efficiency.

Key Features

• Versatile Testing:
  Suitable for testing a wide range of materials, including paper, plastics, cardboard, metallic sheets, and foil.

• Constant Speed Bending:
  Specimens are bent at a constant speed, ensuring uniform testing conditions.

• Direction Measurement:
  Clockwise rotations allow for stiffness measurement, providing a comprehensive understanding of material behavior.

• Digital Readout:
  Offers fast and accurate results, ensuring ease of use and quick data analysis.

Paper Guillotine A4

The Paper Guillotine A4 is a precision instrument designed for cutting paper and paperboard samples to A4 size (210 x 297 mm) for testing and other applications. Built for accuracy and durability, this guillotine ensures consistent results by eliminating errors caused by improper sample preparation.

Key Features:

• Durable Construction: Equipped with a robust sheet metal base for stability and longevity.
• High-Quality Blades: Top and bottom cutting blades are made from special knife steel, ensuring clean cuts and long-lasting performance. The blades are resharpenable for extended use.
• Efficient Sample Cutting: Enables the cutting of multiple samples simultaneously, improving productivity.
• Secure Operation: Features a mechanism to hold paper or material firmly in place during cutting, ensuring precise and clean edges.
• Ease of Use: Designed for user-friendly operation with minimal effort.

Technical Specifications:

• Test Piece Size: A4 (210 x 297 mm)

Application Standards:

• ISO 2493: Standard for bending resistance of paper and board.
• TAPPI 489: Standard for sample preparation in paper and paperboard testing.