What are creping blades?
The crepe blade is the point at which the final sheet appearance is created. The geometry of the blade and its application are critical in establishing the best possible end product.
What is creping in paper making?
Crêpe paper is tissue paper that has been coated with sizing (a glue-like substance). It can then be creased in a way similar to party streamers to create gathers, giving it a crinkly texture like that of crêpe. This creasing process is called creping or crêping.
What does creping mean?
or crape. verb (used with object), creped, crep·ing. to cover, clothe, or drape with crepe.
Why is it called a Yankee dryer?
By the way, the origin of the name “Yankee” for this drying cylinder is a bit of a mystery. There are several theories about where it comes from but no definitive reason for this name has been firmly established, as far as we know. For almost 200 years cast iron has been the material used for Yankee cylinders.
What does Crepey skin mean?
Crepey skin is thin and looks finely wrinkled like crepe paper. It may also sag or feel loose. While crepey skin is similar to common wrinkles in many ways, the condition tends to impact larger areas, and this skin feels noticeably more fragile and thin.
Why does my skin look like crepe paper?
Unlike wrinkles around the eyes and mouth (that result from repeated muscle movements), crepey skin typically can be traced to sun damage. Over time, exposure to the sun breaks down elastin, the fibers in your skin that allow it to stretch and return to its normal position.
How heavy is a Yankee dryer?
A typical Yankee dryer is a cast-iron cylinder of about 6 m (19.5 ft) outside diameter, 7.75 m (25.5 ft) width, and weighing about 180 t (200 short ton).
Who invented the Yankee dryer?
Toscotec
Toscotec, the paper machine producer in Lucca, Italy, is widely seen as the pioneer and driving force for development of the steel Yankee dryer (SYD) concept. Already in the 1960s, the company was producing steel drying cylinders for standard paper machines.
What is a steel Yankee?
These high performance drying cylinders are made entirely of steel, resulting in greater safety and better machine performance than cast Yankees. Of the > 80 ANDRITZ PrimeDry Steel Yankees already sold, > 30 are in the large size range (> 18 ft.
Why choose our coater and creping blades?
This guarantees the highest level of quality. Our coater blades and creping blades are also made from high quality raw materials based on the individual customer requirements. State-of-the-art technology ensures straightness and accuracy of the blade.
How does a crepe blade work?
It firstly forms the counternip to the press roll or rolls, then dries the sheet by conducted heat (as the sheet is held fast onto it for 2/3 to 3/4 of its circumference) and finally provides the platform upon which the crepe occurs. Crepe blade Fixed doctor blade running the width of the Yankee in the creping position.
What is creping and why is it important?
For a majority of the world’s tissue, the process of creping is what creates this lower density and increase in caliper, as well as the other desirable properties which follow from this.
What is the process of creping tissue paper?
For tissue paper products, the process of creping is what gives the sheet the required lower density and increased caliper, as well as numerous other desirable properties. This article examines the basic mechanics of the conventional dry-crepe process, the technology which is used for the majority of the world’s tissue manufacture.