In order to develop and optimise the pulp process, it is important to test and characterise the pulp. This is partly to find out which properties are affected when the process conditions change.

Refining pulp for sheets and testing provides a good overview of the important properties of the end product for good quality. Evaluation of the fibre composition or the effect of meld chemistry is also possible. See RISE opportunities below. It is also possible to order mapping in use to monitor important parameters.

Refinery

• Conical refiner
• PFI-mill

Pulp properties

• Beating Degree SR°/Freeness CSF
• Dewatering ability, DDA
• Water retention value, WRV

Preparation of the pulp

• Pulp concentration
• Standard water/deionised water / distilled water/MilliQ water
• Dry content determination
• Disintegration

Laboratory sheet former

• Conventional sheet former
• Rapid Köthen sheet former

Properties of hand sheets

• Grammage
• Thickness, bulk and density
• Tensile strength properties
• Brightness
• Air permanence/porosity, Bendtsen
• Air resistance, Gurley
• Burst strength
• Tearing resistance 

Optical properties

• ISO-Brightness
• Whiteness CIE
• Light scattering coefficient, s
• Light absorption coefficient, k

Fibre contribution

Bauer McNett, fibre fractions

Britt Jar, fines

Somerville, shives - screening of pulp stickies, plastics, sand, metal pieces, and flakes in recycled fibre.

Fibre dimensions

• Fibre length
• Fibre width
• Fibre form, curl
• Fine material
• Fibre weight, coarseness
• Shieves
• Fibre length distribution
• Kinks
• Pictures, fibres

Impurities

• Dirt and tip
• Assessment of dirt and lace in sheet-dried pulp with trans-illumination
• Dirt in pulp
• Stone cells

Permanence

• Accelerating heat ageing 105°C / 100°C
• Accelerating ageing 80°C 65% moisture
• Accelerating heat ageing 120°C or 150°C
• Accelerating ageing when exposed to light
• Brightness Ageing in Health Test Cabinet (Xenon Light)

Meld chemistry

• Ash 525°C / 900°C
• Cation demand
• Retention studies, Britt Jar, DDA
• Turbidity
• Z-potential

RISE delivers a report with data in Excel format, supplemented with relevant images and diagrams. The report is compiled according to standardised analysis methods and includes an assessment of measurement uncertainty as well as comments that deepen the understanding of the results. All relevant parameters for the current analysis are included.

The delivery of results is planned based on our order backlog and the scope and complexity of the assignment. We strive to deliver results on time, taking into account the specific requirements of your project. We appreciate your understanding and patience as we work to provide you with the best possible service.

By utilizing the customer's filtrate or other process fluids, we can efficiently evaluate various antifoam solutions without the need for extensive and costly full-scale trials.

By providing customized tests, we can assess how well different antifoam solutions perform in the customer's specific process environment without the need for extensive investments or disruption to the existing production process.

These evaluations allow us to identify and recommend the most effective antifoam solutions that meet the customer's needs and process requirements. By conducting tests using the customer's own fluids, we can ensure that the results are relevant and applicable to their operations.

By avoiding the need for full-scale trials, we can save both time and resources for our customers while guaranteeing that they receive high-quality and cost-effective antifoam solutions. This empowers our customers to make informed decisions about antifoaming in their production processes and ensures smooth and efficient operations.

In the process industry, both process chemistry and raw materials vary, meaning that an antifoam that is effective in one system may be ineffective in another. Therefore, each system requires individual optimization based on its specific conditions and requirements.

For paper mills and other industries, it is common to have an established supplier of antifoam, and changing suppliers often involves extensive analysis and testing. Reasons for considering a change may vary, such as the possibility of a more efficient or cost-effective product, issues with foam that the current product cannot handle, or the current product requiring excessively high and costly dosage levels.

By analyzing the current process filtrates, we can determine the causes of complex foaming issues and identify suitable solutions. It is also possible to evaluate different antifoams and study the behavior of silicone in antifoams. It is important that the silicone does not adhere or clump with resins and other contaminants, which can lead to production issues in both paper mills and printing facilities. Having a thorough understanding of these processes is crucial to ensuring smooth and efficient operations.

Foam Tester

Report

Analysis results are delivered by e-mail, normally within 15 working days of the samples arriving to us. With reservation for samples that require special treatment. Express analyzes can be obtained at a surcharge by agreement.

Traditionally, rod coating has been used to test surface adhesives and coatings for spreads on graphic paper. But the method has also proven to be valuable for testing coating of new chemical solutions. The method has therefore had a renaissance and is now used in several new application experiments, including nanocellulose.

The effects of coating with viscose, nanocellulose and lye on different test surfaces are some examples of coating solutions that can be used. These solutions are applied to the sample using a rod. Different rods are available, ranging from smooth to grooved for different amounts of toppings and solutions. After coating, the sample is dried with, for example, IR dryer, but several drying methods are available. More layers can be applied or the sample can be tested directly in lab.

Various surface adhesives and creams can be boiled and prepared in jet boilers. Samples in A4 format are usually used for coating, but even smaller formats can be coated. Stick coating is a fast method that does not require large amounts of material. After coating, there are also many different options for testing the coated surface, such as contact angle, surface roughness and friction. A good complement to other analyzes of the surface are Cobb 60 and Cobb Unger. The strength properties of the test as well as air permeability and air permeability are examples of other interesting tests that can be performed.

Equipment for rod coating.

Standardrapport (offert):

RISE erbjuder en komplett rapport där resultaten presenteras på ett överskådligt sätt genom korta, men informativa avsnitt med tydliga diagram och tabeller. 

Djupare rapport (offert):

Om önskemål finns möjlighet till utförligare rapport på offert har RISE kapacitet att skapa en mer detaljerad vetenskaplig rapport baserad på resultaten och bakgrundsinformationen som tillhandahålls av kunden. 

Samples with coated material.

Analysis results are delivered by e-mail, normally within 15 working days of the samples arriving to us. With reservation for samples that require special treatment. Express analyzes can be obtained at a surcharge by agreement.

The quality of the wood chips is critical to the production of pulp, and at RISE we offer several different analyses to ensure the quality of the wood chips. By carefully examining and evaluating various properties, we can identify any defects or deviations that may affect the production process and the quality of the resulting pulp.

We analyse several key parameters in wood chips, including bark content, moisture content, bulk density and dimensions, to ensure high quality pulp production:

• Bark content: Affects pulp quality by introducing impurities; measurement indicates how well the chips have been cleaned.
• Bulk Density: Reflects the packing density of the chips and affects flowability and absorption of cooking chemicals.
• Size and thickness: Consistent size distribution and optimum thickness are essential for effective impregnation, chemical absorption and uniform cooking quality.

Together, these parameters optimise the process and improve pulp quality and uniformity.

• Dry content SCAN-CM 39:94 Determination of bark content in wood chips for the production of chemical and mechanical pulps. It is applicable for the determination of wood grade chips, preferably in conjunction with the method of chip size distribution described in SCAN-CM 40.
• Size distribution SCAN-CM 40:01 Classification of wood chips intended for the production of chemical and mechanical pulps and is applicable in determining the quality of wood chips in terms of chip size and fineness.
• Bark content SCAN-CM 42:06 Determination of bark content in wood chips for the production of chemical and mechanical masses. 
  Dry-Crude Density or Bulk Density SCAN-CM 46:92 Method for determining the bulk density of wood chips intended for the production of chemical or mechanical pulps. It is also possible to measure the bulk volume of wood chips, i.e. the volume of loosely packed chips.
• Thickness and thickness distribution SCAN-CM 47:92 The method is applicable in determining the quality of wood chips. 
  Length and length distribution, width and width distribution SCAN-CM 48:01 Determination of mean length and length distribution of wood chips intended for the production of chemical or mechanical pulps (accepted chips).
• Wood content in bark fraction SCAN-CM 53:94 Determination of the wood content of the bark fraction from a bark drum or from other debarking machinery. The method is applicable in the determination of wood losses in the debarking process. The total timber loss also includes breakage.
• Dry-raw density SCAN-CM 43:95 Determination of the basic density of wood chips for production of chemical and mechanical pulps.

• Metals
• Extractives
• Carbohydrates
• Ash content

RISE provides a report containing data in Excel format and relevant images and graphs. It is carefully compiled using standard methods for the analyses carried out. The report also includes an assessment of measurement uncertainty to ensure the reliability of the results presented.

Deliveries are scheduled based on our backlog and the scope and complexity of your assignment. Our aim is to ensure that your results are delivered on time, taking into account the specific requirements of your project. Thank you for your understanding and patience as we work to provide you with the best possible service.

It is important that the materials on the market are free of hazardous and regulated substances. Chemical analysis is a way to gain control over the products' chemical content.

Society and consumers place great demands on companies and their products. The legislation also means that you as an actor must have complete information and control over which chemicals your products contain. It is especially important with products for children and goods that come into contact with the skin, such as clothes and accessories.

We help you interpret chemical legal requirements and restrictions that apply to goods made of textile materials and plastics and that are linked to, for example, REACH and POPs. We suggest which analyzes you need to do based on legal requirements, but also other requirements specifications such as eco-labels or procurement requirements.

Determination of siloxanes D4, D5 och D6 (SVHC substances) in silicone, plastics and textile.

QUANTIFICATION OF RESIDUAL AMOUNTS OF CYCLIC VOLATILE METHYL SILOXANES IN SILICONE ELASTOMERS described by CES – Silicones Europé, revised version January 2019

Sample amount 20 grams

Written report in Swedish or English.

The normal delivery time is 10 working days after ordering and received sample material.

Determination of siloxanes D4, D5 and D6 (SVHC substances)

QUANTIFICATION OF RESIDUAL AMOUNTS OF CYCLIC VOLATILE METHYL SILOXANES IN SILICONE ELASTOMERS described by CES – Silicones Europé, revised version January 2019

Colophony, also referred to as rosin, is a term used to describe a collection of resin acids that are naturally present in the extractives of pine, spruce, and larch trees. Given that pine oil is a common byproduct of the wood distillation process, colophony is often found in significant quantities in pine oil.

It is acknowledged that traces of colophony may be present in pulp and, consequently, may be found in various products. However, it is generally accepted that this does not usually cause any problems. However, a Danish study of 2,000 eczema patients found that 3.7% had an allergy from skin contact with colophony. The greatest risk of exposure to these substances is associated with prolonged contact, typically occurring in cases of adhesives utilised in plasters, bandages, cosmetic products, and sanitary items. This allergy has the potential to persist throughout a person's lifetime.

In the context of regulatory frameworks pertaining to hygiene and cosmetic products, there has been an observed increase in the demand for analysis in order to ascertain colophony levels. At RISE, we specialise in the measurement of colophony content, with the objective of ensuring compliance with safety standards and minimising the risk of allergic reactions.

Colophony is a naturally occurring substance that is found in a variety of products, including cosmetics, adhesives, paints, soaps, and industrial chemicals. It is sometimes referred to by different names, such as rosin, resin oil, and tall oil resin. It is imperative to be cognizant of these synonyms to ensure precise identification and analysis.

The analysis of colophony levels in mass is achieved through the utilisation of gas chromatography for the purpose of examining resin acids. In certain instances, three particular resin acids – abietic acid, dehydroabietic acid, and 7-oxodehydroabietic acid – are employed as markers for colophony. In order to conduct this analysis, a minimum of 20 grams of mass is required.

RISE is responsible for the production of a report, the content of which is presented in Excel format, together with relevant images and diagrams. The data has been compiled in accordance with recognised methods, incorporating a measurement uncertainty assessment to ensure the reliability of the results. The report encompasses all pertinent parameters, accompanied by comprehensive comments and elucidations to facilitate enhanced comprehension.

The delivery of results is contingent upon the order backlog and the scope of the assignment. The company's operational framework is designed to ensure the timely delivery of projects in accordance with the specific requirements of each client.

Express delivery is available at an additional cost for those requiring faster results. Should you wish to make an enquiry regarding prices and availability, please do not hesitate to contact us.

It is important that the materials on the market are free of hazardous and regulated substances. Chemical analysis is a way to gain control over the products' chemical content.

Society and consumers place great demands on companies and their products. The legislation also means that you as an actor must have complete information and control over which chemicals your products contain. It is especially important with products for children and goods that come into contact with the skin, such as clothes and accessories.

We help you interpret chemical legal requirements and restrictions that apply to goods made of textile materials and plastics and that are linked to, for example, REACH and POPs. We suggest which analyzes you need to make based on legal requirements, but also other requirements specifications such as eco-labels or procurement requirements.

Determination of leather preservatives (TCMBT, PCMC, OPP, OIT) according to OEKO-TEX

ISO 13365. Leather - Chemical determination of the content of preservatives (TCMTB, PCMC, OPP, OIT) in leather by liquid chromatography

Sample amount 20 grams

Written report in Swedish or English

The normal delivery time is 10 working days after ordering and received sample material.

OEKO-TEX

ISO 13365

Microorganisms in liquids, paper, and cardboard can cause staining and contamination, impacting both the production process and the final product. In food-related manufacturing, it is particularly important to monitor and control this to ensure high standards of quality and hygiene.

In the manufacturing of paper and cardboard intended for food contact, it is crucial to carefully monitor the bacterial content of the final product. High bacterial levels can not only impact food safety but also cause issues in the production process. Bacteria can contribute to operational disruptions by forming biofilms in pipelines and on machine components, leading to production downtime and increased maintenance costs. Moreover, microbial growth can result in discoloration or odors in the finished material, which in turn may lead to customer complaints and quality deviations.

To control bacterial levels, standardized testing methods are used to provide an indication of the microbial load in the paper or packaging. While these methods do not always give a complete picture of the specific microorganisms present, they serve as essential tools for ensuring compliance with hygiene standards. Regular monitoring and proper maintenance of production equipment are also crucial measures to minimize the risk of bacterial contamination and to ensure that paper and cardboard products are safe for food contact.

The method ISO8784-1:2014 do not say everything, we know e.g. not which ones grow, but the method is standardized and works well as a control to use even in mills.

RISE offers a report that includes data in Excel format and relevant images and diagrams. It is carefully compiled using standard methods for the conducted analyses. 

The delivery of results is scheduled based on our order backlog and the scope as well as the complexity of your assignment. We aim to ensure that your results are delivered on time, taking into account the specific requirements of your project.

RISE offers services for sampling and mapping of processes to assess and monitor various parameters critical to production efficiency and product quality. 

Fibre characterisation such as linear density, fibre strength or tenacity and elongation of staple fibres and filaments from viscose show the mechanical properties of the fibre.

RISE is equipped with two instruments for determining, among other things, linear density, fibre strength or tenacity and elongation of staple fibres and filaments from viscose. Spin studies based on viscose solution from dissolving cellulose, either manufactured in our pilots or delivered from customers, can be done in our spin pilot after which the final viscose fibre is characterised. The most common analysis is done on dry fibre, but wet fibre can also be analysed. 

The instruments are partly a Vibrodyn 400 and partly a Vibroscope 400 from Lenzing Instruments. The determinations are based on the methods SS-EN ISO 5079, ISO 1973: 1995 (E) and ISO 1130-1975 (E). 

RISE leads research, development, and innovation in viscose manufacturing. By combining advanced technology with scientific and practical expertise, RISE enhances efficiency, quality, and sustainability. Committed to advancing technology, RISE drives viscose development globally.

RISE offers a report that includes data in Excel format along with relevant images and diagrams. It is carefully compiled using standard methods for the analyses performed.

If a more detailed report is required, RISE has the capacity to provide a comprehensive scientific report based on the results and background information supplied by the customer, available upon request and quotation.

The delivery of results is scheduled based on our order backlog and the scope as well as the complexity of your assignment. We aim to ensure that your results are delivered on time, taking into account the specific requirements of your project. Thank you for your understanding and patience as we work to provide you with the best possible service.

Wood is one of the most important variables in pulp production and places high demands on the control of the wood delivered to the factories. The following wood and pulp analyses provide information about the economic value of the fibre, its processability and its pulp and paper properties.

RISE has extensive experience of working closely with factories in various industries, including the wood and pulp industry. Through our close collaboration and expertise in process analysis, we have helped companies improve their production processes and solve complex problems.

Using our advanced fibre line analyses, we can quickly and cost-effectively identify and address challenges that arise in the production process. By carefully analysing data from the fibre lines, we can optimise the process steps to increase efficiency, reduce waste and improve product quality.

We offer a wide range of analyses and services that can be tailored to your specific needs and challenges. Examples of our analyses include:

Fibre analysis: We can perform detailed analyses of fibre samples to characterise properties such as fibre length, fibre distribution and fibre strength. This information can be used to optimise fibre blends and improve paper quality.

Process optimisation: We can use advanced modelling tools and simulation programmes to optimise various process steps and maximise production capacity.

Problem identification and problem solving: If you encounter specific problems or challenges in your production process, our experts can analyse the situation and develop tailor-made solutions to effectively solve the problems.

RISE has extensive experience of working closely with factories in this process. With the help of our fibre line analyses, results and solutions can be achieved quickly and cost-effectively. This ensures that optimisation, development and problem solving for various process steps in the wood and pulp industry are as efficient as possible. We welcome you to discuss with us which analyses are right for your company.

RISE can analyse wood and pulp using a range of different analyses and measurement methods established within the wood and pulp industry to characterise and assess various properties of raw materials, processes and end products. Below is a more detailed description of some of the most common analyses and measurement methods:

• Alpha, beta, gamma cellulose
• Alkali resistance (R5, R10, R18)
• Anthraquinone (Internal method KA 10.225)
• Ash content (ISO 1762)
• Extractives
• Free phenol groups (internal method KA 10.207)
• Fibre charge (SCAN-CM 65)
• Chloride, total content (SCAN-CM 51) and chloride (ISO 9197)
• Carbohydrates (SCAN-CM 71)
• pH, water extract (ISO 29681)
• Sulphate (ISO 9198)
• Viscosity (ISO 5351)
• Z-potential

RISE provides a report containing data in Excel format as well as relevant images and diagrams. It is carefully compiled using standard methods for the analyses performed. The report also includes an assessment of measurement uncertainty to ensure the reliability of the results presented. All relevant parameters that are significant for the specific analysis are included to provide a comprehensive picture of the situation. In addition, there are detailed comments and explanations that provide further insight and understanding of the data presented.

The delivery of results is planned based on our order backlog and the scope and complexity of the assignment. We strive to deliver results on time, taking into account the specific requirements of your project. We appreciate your understanding and patience as we work to provide you with the best possible service.

RISE offers expertise and services in the field of wood and pulp, including the ability to perform wood and pulp sampling directly at the factories. Our team of experienced researchers and technicians has the knowledge and resources required to perform accurate and reliable wood and pulp sampling for analysis and evaluation.