 |
|
May 1998 · Volume72, Issue 5
|
|
|
|
|
|
Coating and Papermaking Products
As part of this issue's focus, the following showcase features some of the latest coating/papermaking products, including fillers, pigments, chemicals, paper machine clothing, formers, and other related items. By circling the corresponding number on the Reader Service card on page 127 of this issue, readers can obtain more information on these products.
By Monica Shaw, Associate Editor
|
|
|
|
|
|
|
|
Boxboard coatings
A new line of coatings for the boxboard industry has been introduced by the Paper Chemicals Group of Georgia-Pacific Resins. Georgia-Pacific’s Novacote PC pigmented boxboard coatings provide excellent printability and brightness. They include a high-gloss coating for graphic arts linerboard and a high-opacity coating for waxable white linerboard.
Georgia-Pacific Resins Inc. |
 |
|
|
|
READER SERVICE NO. 501 |
|
|
|
|
|
|
|
Fine coating kaolin
Alphalux from ECC International is a premium fine coating kaolin designed for the highest quality coated free-sheet and board production where high brightness, blue-white shade, sheet smoothness, and gloss are critical. It exhibits high shear rheology that can reduce scratches in high solids and high-speed coating applications. Alphalux is available in slurry, dry bulk, or small or bulk bags.
ECC International |
|
|
|
 |
|
|
|
READER SERVICE NO. 502 |
|
|
|
|
|
|
|
|
|
|
|
|
Pigments brochure
A new color brochure from Rohm and Haas highlights its complete line of Ropaque hollow sphere pigments. These pigments improve the performance of coatings for paper and paperboard by increasing gloss, opacity, brightness, smoothness, bulk, printability, and productivity. The brochure provides physical properties of the four Ropaque offerings and presents performance data in a series of charts and graphs. Rohm and Haas Co. |
 |
|
|
|
READER SERVICE NO. 503 |
|
|
|
|
|
|
|
|
|
|
|
|
Deaeration system
The OptiAir deaeration unit from Valmet mechanically removes the air from coating color without the need for noxious and expensive chemicals. Applied to any type of coater, OptiAir deaeration enhances paper quality by removing the air that causes skips and runnability problems. With no moving parts, this unit allows pulsation-free coating color flow and flawless coating operation. Valmet |
 |
|
|
|
READER SERVICE NO. 504 |
|
|
|
|
|
|
|
|
|
|
|
|
TiO2
The new Tiona 4000 TiO2 from Millenium Inorganic Chemicals offers improved opacity brightness and flexibility. Through novel particle size control, Tiona 4000 combiness the best of TiO2’s two crystalline forms for paper–the opacification of rutile with the optical brightener efficiency of anatase.
Millenium Inorganic Chemicals
|
 |
|
|
|
READER SERVICE NO. 505 |
|
|
|
|
|
|
|
|
|
|
|
|
Pilot paper coater
GenCorp’s new high-speed pilot paper coater allows preliminary trials that save mills time and money when developing coating technologies. These coating technologies then move more quickly and efficiently to full-scale qualification, opening new development options for mills. GenCorp’s pilot coater features a wide variety of coating application options. GenCorp |
|
|
|
 |
|
|
|
READER SERVICE NO. 506 |
|
|
|
|
|
|
|
|
|
|
|
|
Size press coating
Pensize is a liquid, chemically-bonded starch/latex copolymer from Penford Products Co. that provides the binding power of a synthetic and the clean running of a starch. Papermakers can apply it in clear-size and pigmented formulations on conventional and metering size presses to reduce overall cost and achieve better print quality. Penford Products Co.
|
 |
|
|
|
READER SERVICE NO. 507 |
|
|
|
|
|
|
|
|
|
|
|
|
Clothing book
By Sabit Adanur and Asten Inc., Paper Machine Clothing describes the evolution of paper machine clothing into sophisticated products that are made from synthetic fibers. It also describes new technologies that meet the demands of today’s paper machines. In addition, the book covers the use of total quality management (TQM) and computers in the papermaking process. Asten Inc.
|
 |
|
|
|
READER SERVICE NO. 508 |
|
|
|
|
|
|
|
|
|
|
|
|
Ball valve
Vertically installed valves with actuators need to be properly aligned in order to prevent stem leakage; leaking is an important problem in the coating kitchen where valuable coatings need to be contained. PBM’s two-way ball valve with direct mount actuation utilizes the valve stem as an integral part of the actuator drive and maintains alignment–even when vertically installed. This valve can also include cavity fillers designed to eliminate the body cavity. PBM
|
 |
|
|
|
READER SERVICE NO. 509 |
|
|
|
|
|
|
|
|
|
|
|
|
Microparticle technologies
Compozil microparticle technologies from Eka Chemicals allow high returns for a low investment cost. Benefits of Compozil and related technologies include less sheet two-sidedness, increased machine speed and production, enhanced formation and print quality, and improved retention of fillers, fines, starch, and size. The additional dividend of improved colloidal retention for better runnability and reduced effluent load is also possible. Eka Chemicals
|
 |
|
|
|
READER SERVICE NO. 510 |
|
|
|
|
|
|
Self-cleaning showers
Self-cleaning showers from Alfa Laval Celleco alleviate problems with plugged nozzles on disc filter showers. These self-cleaning showers will increase disc filter capacity and lower maintenance costs. Specially designed nozzles are cleaned automatically at timed intervals or manually by turning a hand wheel. In addition, these showers can be retrofitted into any disc filter. Alfa Laval Celleco
|
 |
|
|
READER SERVICE NO. 511 |
|
|
|
|
|
|
|
|
|
|
Foam control technology
Protocol foam control technology from BetzDearborn was specifically created to provide cost-effective foam control in paper production. Protocol features a full range of product types formulated for specific papermaking grades, including water-based, water-extended, oil-based, and 100% active concentrates. One benefit is lower treatment program costs. BetzDearborn Paper Process Group
|
|
|
|
 |
|
|
|
READER SERVICE NO. 512 |
|
|
|
|
|
|
|
|
|
|
|
|
Liquid delivery system
The Kemex dosing system from Pulp & Paper Technology is a precise liquid delivery system that does not require calibration. System accuracy and reliability allows papermakers to deliver concentrated dyes directly into coating compound mixers, replacing dilution tanks and calibration-intensive metering pumps. Delivery volumes are entered and controlled via PLC or DCS. Alarms are indicated automatically if delivery is interrupted. Pulp & Paper Technology |
 |
|
|
|
READER SERVICE NO. 513 |
|
|
|
|
|
|
|
|
|
|
|
|
Press felt
The Metrixx PA2 press felt from Weavexx’s Metrixx line of paper machine clothing is specifically designed for uncoated free-sheet paper machines. Metrixx PA2’s laminated design is proven to reduce vibration in the third and fourth press positions. In addition to reduced vibration, this press felt offers enhanced water handling capacity, long life, and a micro-smooth surface that improves sheet finish. Weavexx |
 |
|
|
READER SERVICE NO. 514 |
|
|
|
|
|
|
|
|
|
|
|
|
PCC fillers
Precipitated calcium carbonate (PCC) fillers from Specialty Minerals Inc. (SMI) reduce the cost of making paper by replacing more expensive wood pulp and other costly fillers while increasing the paper’s brightness, opacity, porosity, and bulk. Other benefits include an increase in sheet gloss and smoothness, and enhancement of ink gloss, holdout, and print detail. SMI can customize sets of coatings and filler products.
Specialty Minerals Inc. |
 |
|
|
|
READER SERVICE NO. 515 |
|
|
|
|
|
|
|
|
|
|
|
|
Paper mill bearings
Torrington’s paper mill bearings are engineered to improve precision and load capacity. The YMBW507C08 spherical roller bearing design offers better performance and longer service life. Smooth finishes and special precision in both roundness and radial runout enhance operation. Runout precision above RBEC 5 levels improves control of paper caliper and reduces vibrations. Torrington |
|
|
|
 |
|
|
|
READER SERVICE NO. 516 |
|
|
|
|
|
|
|
|
|
|
|
|
Former
The FCFormer from FCFormtek, a division of AES Engineered Systems, allows the mill to control headbox profile independently of sheet moisture into the couch. It also allows the mill to control MD/CD strength ratios. In addition, the FCFormer reduces energy costs, increases production, and improves retention and smoothness.
AES Engineered Systems/FCFormtek Div. |
 |
|
|
|
READER SERVICE NO. 517 |
|
|
|
|
|
|
|
|
|
|
|
|
Coating pigment
Digitex coating pigment offers inkjet producers economy and runnability when producing coated inkjet media. This advanced kaolin material matches the performance of silica-based coatings to produce a high-quality, coated inkjet substrate that meets the demands of wide-format graphic arts, digital photo, home, and office markets. Digitex allows for a 65% increase in coating color solids with no appreciable increase in viscosity. Engelhard Corp. |
 |
|
|
|
READER SERVICE NO. 518 |
|
|
|
|
|
|
|
|
|
|
|
|
Event capturing system
A self-contained PC-based video system, Cartoek’s event capturing system (ECS) stores video on disk instead of analog videotape. The system is useful for randomly occurring problems, problems identifiable with a state change, and problems where visual analysis before, during, and after the event is beneficial. ECS captures video at a rate of 30 frames/sec., and, with correct lighting, it can capture events with a shutter speed of up to 1?10,000 of a sec. Carotek Inc. |
 |
|
|
|
READER SERVICE NO. 519 |
|
|
|
|
|
|
|
|
|
|
|
|
Low vacuum box
To improve drainage curves and allow lower headbox consistencies, Lo-Vac boxes provide a transition to higher vacuum areas by removing a large volume of water at a low vacuum level. Tighter blade spacing on the lo-vac box provides proper fabric support. In addition, blades and structures are designed to suit paper grade and drainage rate requirements. Sheet consistencies can reach 7% to 9%
for many grades. Wilbanks International |
 |
|
|
|
READER SERVICE NO. 520 |
|
|
|
|
|
|
|
|
|
|
|
|
Filler
Faxe Chalk 90 has a brightness of 90% (GE) and a natural fine narrow particle size distribution. Manufactured from raw chalk, this effective paper filler is delivered as crumbles or as slurry. Faxe Chalk 90 has around an 82% solids content in crumbles form and around a 70% solids content in slurry form. In crumbles form, it is stored in a warehouse and, in slurry form, it is stored in covered storage tanks with agitation. Faxe Kalk |
 |
|
|
|
READER SERVICE NO. 521 |
|
|
|
|
|
|
|
|
|
|
|
|
Former
The DuoFormer D from Voith Sulzer features a drainage box in the top wire, flexible forming strips in the bottom wire, and the simple kinematics of these elements. The drainage box consists of three suction zones: the skimmer, plus two suction zones for drainage of the paper web. The DuoFormer D is suitable for basis weight ranges between 28 g/m2 and operating speeds up to 1,200 m/min. Voith Sulzer |
 |
|
|
|
READER SERVICE NO. 522 |
|
|
|
|
|
|
|
