SSB Triple Layer Forming Wire for Cultural Paper Making

Description

FORM TF is the new, advanced evolution of the SSB concept Forming Fabric for Paper Making, developed by KEYLIFE. The paper side of the fabric offers the best "fabric" effect, with the highest FSI, for the best sheet planarity, retention and formation. The fabric optimizes all the fundamental characteristics of an SSB fabric, with this particular design reaching the best possible dewatering efficiency. The compact design guarantees the maximum planarity and absence of water and fibers carrying.

PROPERTIES

• Improved planarity of the paper sheet: the binding of two longitudinal yarns and the gap of six produce the highest cross stiffness known today in the SSB approach, resulting in the best maintenance of paper sheet profiles for the entire life span of the fabric. KEYLIFE FORM TF has been developed on a high-speed weaving loom using a reduced number of shafts, to afford the maximum pattern binding for the best dimensional stability, and thus excellent paper sheet planarity. The transversal stiffness value of the new concept is comparable to the best currently available on the market, normally found in triple weft designs. Additionally, the double longitudinal binding yarn considerably limits the stretching of the fabric under operating tension of paper machine, to about 30% less than standard SSBs. FORM TF fabric has a naturally very small inner void volume, thus a natural and easy dewatering capability, very important on high speed paper machines.

• Improved homogeneity of the paper sheet: thanks to an enhanced dewatering capacity and high FSI, a better fiber distribution and maximum sheet coating are obtained with an equal number of wefts. FORM TF also offers a true one-on-one fabric pattern, with all knuckles aligned on the same plane. This factor maximizes the fiber support index, erasing any possible marking of the sheet. With a very even surface, fiber distribution is very regular, with a consequent high degree of homogeneity in paper sheet formation. FORM TF's engineered easy dewatering system, combined with fabric transversal stiffness and limited empty volume, is one of the keys to its success in paper making.

• Cost reduction: the reduced empty volume of the FORM TF concept offers improved drying of the paper sheet and the reduction of energy costs typical of press and dryer sections. This characteristic translates to excellent dewatering capacity, with no water dragging issues, while the high surface FSI increases retention, resulting in a better coating of the paper sheet. A better paper sheet coating means reduced costs of pulp preparation (ex.: refining) and reduced consumption of chemical products (ex.: retention agents). FORM TF’s natural dewatering reduces vacuum requirements and drag power, therefore energy consumption.

And the long lifetime minimizes the unplanned shutdown of paper machine, to minimize the running cost of the paper machine.

APPLICATIONS
FROM TF is designed for Fourdrinier, hybrid paper machines with top former and gap formers; dedicated to fine grades (xerox, printing & writing, coating base...) whatever the speed of the paper machine.

KEYLIFE is a professional manufacturer of industrial fabrics in China. The plant ranks one of top 5 in the industry in the country, with a registered capital of USD 19 Million and an annual sale over USD 10 Million.

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