About D-Bar
What is D-Bar (E-Roll/Select-Roller/A-Bar)
D-Bar is the OSG product with high precision and high efficiency based on the solid technology that has supported the world-wide manufacturing for years. We improved the traditional wire-bar (a kind of coating bar which wire wounded around a core bar) that is widely used in the coating industry. It was commercialized using a manufacturing method that transfers the shape of the mold to the material with high precision using the precision mold technology that OSG has built for many years.
The development of D-Bar started from 1985, and now there are more than 500 kinds of groove shapes (molds) are available. These years, customers from film, special paper, paper, glass and other industries strongly requires for better coating performance such as precise thickness control and multi-layer coating. So D-Bar has been adopted by many customers because of the unique advantages over traditional wire bar.
Features of D-Bar
Feature 1
Free from wire cut or wire displacement.
The bottom of the groove is designed into a wide shape, so the clogging caused by the coating is reduced, and the bar is easier to clean. Long-term and stable coating performance can be expected to achieve.
Feature 2
Less clogging and easy to clean.
The bottom of the groove is designed into a wide shape, so the clogging caused by the coating is reduced, and the bar is easier to clean. Long-term and stable coating performance can be expected to achieve.
Test method: Test with ink. (gravure ink)
Coating, Cleaning, Wiping * 100 times
SEM (Scanning electron microscope) Comparison image
Feature 3
Excellent coating liquid leveling property.
The bottom of the groove is designed into a wide shape, so the coating leveling(smoothing) is excellent. Coating defects such as streaks and stains would reduce and the coating surface quality would be expected to improve.
Feature 4
a wide variety of groove shapes are available.
A wide variety of groove shapes would help improve the coating surface quality.
S-type
S-type is the standard groove shape of OSG Wireless Bar. The R shape of the top and bottom of the groove is designed to reduce the clogging problem.
K-type
The bottom of the K-type groove is disigned to aim flat as to improve the coating leveling(smoothing). K-type is comparatively often used in the coating condition of high viscosity and large coating weight.
W-type
It is a specification aimed at reducing initial wear by providing a flat part on the top of the groove.
R-Max (RS) type
It is a specification aimed at reducing initial wear by increasing the R at the top of the groove compared to the S type. And also, improving the coated surface by increasing the contact point with the base material.
WP-type (Wide pitch)
It is a specification aimed at leveling the liquid by widening the pitch between the grooves.
NP-type (Narrow pitch)
This specification increases the number of points supported by the groove, such as when the base material is very thin or when tension is not too high.
M-type
Groove shape with a flat part at the top of the groove and R shape at the bottom of the groove.
0° (Ring)
The grooves are not spiral grooves but completely seperated with each other to prevent inclusion from the end of the bar.
Angled (3°～)
By forming an angle, this groove spec. aim to reduce pitch streaks and expect foreign matter to escape faster during application. Even if you use the S type and streaks remain, angle type would reduce and remove streaks.
S-type
S-type is the standard groove shape of OSG Wireless Bar. The R shape of the top and bottom of the groove is designed to reduce the clogging problem.
K-type
The bottom of the K-type groove is disigned to aim flat as to improve the coating leveling(smoothing). K-type is comparatively often used in the coating condition of high viscosity and large coating weight.
W-type
It is a specification aimed at reducing initial wear by providing a flat part on the top of the groove.
R-Max (RS) type
It is a specification aimed at reducing initial wear by increasing the R at the top of the groove compared to the S type. And also, improving the coated surface by increasing the contact point with the base material.
WP-type (Wide pitch)
It is a specification aimed at leveling the liquid by widening the pitch between the grooves.
NP-type (Narrow pitch)
This specification increases the number of points supported by the groove, such as when the base material is very thin or when tension is not too high.
M-type
Groove shape with a flat part at the top of the groove and R shape at the bottom of the groove.
0° (Ring)
The grooves are not spiral grooves but completely seperated with each other to prevent inclusion from the end of the bar.
Angled (3°～)
By forming an angle, this groove spec. aim to reduce pitch streaks and expect foreign matter to escape faster during application. Even if you use the S type and streaks remain, angle type would reduce and remove streaks.
CATALOG / TECHNICAL DATA
CATALOG
TECHNICAL DATA
Since the spin-off from OSG Corporation in 2005, we have expanded our business in the fields of ICT and digital home appliances, focusing on tamper-resistant screw, miniature precision screw parts and converting tools that utilize OSG's forming technology.
We always value the communication with our customers and will continue to develop new technologies to meet the increasingly advanced and diversified needs from our customers.
We look forward to your continued patronage in the future.
SCREW
SCREW
