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Figure 2.10 tail threading cardboard
3.Ending remarks
Surface sizing plays an important role in the improvement of surface properties of paper and physical properties. Practice has proved that the application of immersion surface sizing machine can achieve stable and reliable in high speed and wide paper machine operation. This sizing machine have wide product width, high speed, in the domestic industry products with strong representation, both to meet the requirements of customers for the performance, compared with imported equipment and reduce the cost of purchase of requipment. It is a products with good cost performance.
Famous Sizing Applicator Introduce
VOITH SpeedSizer AT
The best solution for your film application
SpeedSizer AT is an applicator for the online and offline process. With its broad range of applications, SpeedSizer AT is flexible and guarantees optimal machine efficiency.
Optimal surface
The surface composition plays a major role in paper and board quality. A high level of paper quality requires a perfect smooth and closed surface. This can be achieved through outstanding coating and sizing processes. SpeedSizer AT meets the highest requirements and impresses with its uniform and flawless film application and optimal transfer and sheet release conditions in the nip of the applicator rolls, tailored to the respective application.
Perfect appearance
With SpeedSizer AT, Voith offers the perfect solution for application of starch, for surface sizing and for coating paper and board. Along with the paper characteristics, penetration and surface coverage are also improved in a targeted fashion. Thus other than hydrophobizing, the increase in strength characteristics and printability are key points when sizing. With coating visual characteristics in particular are important, along with better printability.
Broad range of uses
SpeedSizer AT has a broad range of uses and can be utilized in a multitude of applications. Various paper grades and qualities can therefore be produced on one machine. With SpeedSizer AT, film application with different formulations of the application medium is possible. Thus fast and flexible reaction to changing requirements can be undertaken. Nearly all paper qualities, from specialty paper to coated or uncoated commodity-grade paper, are refined with SpeedSizer AT.
Consistent dimensional stability
The three most important conditions for perfect film application are flawless premetering, ideally uniform film application and precise transfer of the medium onto the paper web. With SpeedSizer AT, Voith offers a product to meet these conditions, the core of which is the application system. It includes the supporting body with attached cross distribution pipe, rod holder and color return system. The application system has to have lasting dimensional stability for consistent film application, independent of external influences. For that reason the supporting body consists of a high-quality, functionally optimized fiber composite material. It thus meets this precondition and is not sensitive to thermal influences such as changing application media or ambient temperature. The results are highly stable processes over the entire range of use as well as optimal profiles over the entire life cycle.
施涂机与其相关技术
表面施胶的含义或多或少是不言自明的。施胶并不能使纸张防水，而只是延缓水的穿透力。表面施胶可获得同样的效果。对某种特定的纸，用表面施胶也有许多其它的理由。但也许应先给表面施胶下一个定义。表面施胶是施胶剂或成膜材料在已经成型的纸面上的涂施。施胶剂包括胶、聚乙烯醇、骏甲基纤维素和淀粉。淀粉可能是应用最广泛的表面施胶剂。在特定的施胶剂配方中也可以加入各种颜料。
书写纸施胶原先是为了防止墨水化开及笔尖挑起纸中的纤维。证券纸仍然要施胶，是为了使之未施胶时有更利于书写和打印的表面。高级文化用纸通过施胶可获得良好的美感。许多印刷纸施胶是为了粘紧松散的纤维和防止在印刷机中出现掉粉和粘辊。施胶也可赋予纸幅以某种强度，为此，有些纸板也在表面上施胶。准备涂布的纸幅也可以先施胶以阻止涂料透入纸的结构内部，并为施加涂料提供一个良好的纸面。一些用来增强纸的特性的材料施加于纸幅表面可能比直接添加进纸幅结构内更加有效。