In the realm of tissue production, ensuring the smoothness of the final product is of utmost importance. As a leading supplier of Jumbo Roll Tissue Machines, I am often asked about the intricacies of how these machines guarantee the desired smoothness of the tissue. In this blog post, I will delve into the various aspects of a Jumbo Roll Tissue Machine and explain how it contributes to the production of smooth tissue.
1. Raw Material Preparation
The journey towards smooth tissue begins with the careful selection and preparation of raw materials. Our Jumbo Roll Tissue Machines are designed to work with high - quality pulp, which is the primary ingredient for tissue production. The pulp is sourced from sustainable forests and undergoes a series of processing steps to ensure its purity and consistency.
First, the pulp is refined to break down the fibers and make them more flexible. This refining process is crucial as it affects the strength and smoothness of the final tissue. During refining, the fibers are beaten and hydrated, which helps to develop their bonding potential. Our machines are equipped with advanced refining systems that can precisely control the degree of refining, ensuring that the fibers are neither over - nor under - refined.
Next, additives may be introduced to the pulp mixture. These additives can include wet - strength agents, softeners, and debonders. Softeners play a key role in enhancing the smoothness of the tissue. They work by reducing the friction between the fibers, making the tissue feel softer and more pleasant to the touch. Debonders, on the other hand, prevent the fibers from bonding too tightly, which can result in a rough texture. Our machines are capable of accurately dosing these additives, ensuring the right balance for optimal smoothness.
2. Forming Section
The forming section of a Jumbo Roll Tissue Machine is where the pulp is transformed into a continuous web of tissue. This process is critical for achieving a uniform and smooth surface.
The pulp mixture is pumped onto a moving wire mesh, which is part of the Fourdrinier or twin - wire former. As the water drains through the mesh, the fibers begin to form a mat. The key to a smooth formation is to ensure an even distribution of the pulp across the width of the wire. Our machines are equipped with advanced headboxes that can precisely control the flow and distribution of the pulp. This ensures that the fiber mat has a consistent thickness and density, which is essential for a smooth finish.
In addition, the forming section is designed to minimize turbulence and fiber entanglement. Turbulence can cause the fibers to clump together, resulting in a rough surface. Our machines use innovative flow - control devices and gentle dewatering techniques to create a calm and stable environment during the forming process. This allows the fibers to align in an orderly manner, contributing to the smoothness of the tissue.
3. Pressing Section
After the tissue web is formed, it enters the pressing section. The main purpose of this section is to remove as much water as possible from the web while maintaining its structure and smoothness.
The tissue web passes through a series of press rolls, which apply pressure to squeeze out the water. The pressure applied must be carefully controlled to avoid crushing the fibers or causing unevenness in the web. Our Jumbo Roll Tissue Machines are equipped with advanced press roll designs that can apply a uniform pressure across the width of the web. This helps to remove water efficiently without damaging the fibers, resulting in a smooth and well - formed tissue.
In addition, the press felts used in our machines play an important role in ensuring smoothness. The felts are designed to absorb the water squeezed out of the web and provide a smooth surface for the tissue to pass through. They are made from high - quality materials that are resistant to wear and can maintain their shape and performance over time. Regular cleaning and conditioning of the press felts are also carried out to ensure their optimal operation, which in turn contributes to the smoothness of the tissue.
4. Drying Section
The drying section is where the remaining moisture is removed from the tissue web, and it has a significant impact on the final smoothness of the tissue.
There are two main types of drying methods used in Jumbo Roll Tissue Machines: Yankee drying and through - air drying. Yankee drying involves passing the tissue web over a large, heated cylinder called a Yankee dryer. The heat from the dryer evaporates the remaining water in the web, and the surface of the Yankee dryer provides a smooth finish to the tissue. Our machines are equipped with advanced Yankee dryers that can precisely control the temperature and speed of the drying process. This ensures that the tissue is dried evenly and gently, without causing shrinkage or roughness.
Through - air drying, on the other hand, uses hot air to dry the tissue. This method is known for producing a softer and more bulky tissue with a high degree of smoothness. Our machines can be configured with through - air drying systems that are designed to provide a uniform flow of hot air across the width of the web. This helps to dry the tissue evenly and maintain its smooth and fluffy texture.
5. Reeling and Converting
Once the tissue web is dried, it is reeled onto a large roll, known as a jumbo roll. The reeling process must be carefully controlled to ensure that the tissue is wound tightly and evenly. Any unevenness in the reeling can cause wrinkles or creases in the tissue, which will affect its smoothness.
Our Jumbo Roll Tissue Machines are equipped with advanced reeling systems that can precisely control the tension and speed of the reeling process. This ensures that the tissue is wound onto the jumbo roll in a smooth and consistent manner.
After the jumbo roll is produced, it can be further converted into various tissue products, such as Towel Paper Machine, Hand Towel Tissue Machine, and Napkin Tissue Paper Machine. During the converting process, additional steps may be taken to enhance the smoothness of the tissue, such as embossing and slitting. Our converting equipment is designed to handle the tissue delicately, ensuring that the smoothness achieved during the production process is maintained.
6. Quality Control
Throughout the entire production process, strict quality control measures are in place to ensure that the tissue meets the desired smoothness standards.
Our machines are equipped with various sensors and monitoring systems that can detect any deviations in the production process. For example, sensors can measure the thickness, moisture content, and smoothness of the tissue at different stages of production. If any issues are detected, the machine can automatically adjust the process parameters to correct the problem.
In addition, regular laboratory testing is carried out on the finished tissue products. This includes tests for smoothness, softness, strength, and other quality parameters. Our quality control team uses advanced testing equipment and techniques to ensure that the tissue meets or exceeds the industry standards for smoothness.
Conclusion
As a supplier of Jumbo Roll Tissue Machines, we understand the importance of smoothness in tissue production. Our machines are designed with the latest technology and innovative features to ensure that every step of the production process contributes to the creation of smooth and high - quality tissue.
If you are in the market for a Jumbo Roll Tissue Machine or have any questions about tissue production, we invite you to contact us for more information. Our team of experts is ready to assist you in finding the right solution for your specific needs. We look forward to the opportunity to work with you and help you produce the smoothest tissue possible.
References
- "Tissue Paper Science and Technology" by James D. Casey
- "Handbook of Pulp and Paper Technology" by Christopher J. Biermann
- Industry research reports on tissue production and machinery