•  On Feb, 17, 2021
•  admin

DST has to work very hard in order to keep a good PVA sponge quality position among the manufacturer. Among all the action, continual improvement is the momentum driving us moving toward a new era of the cleaning process. Even though we are facing severe resources restriction but this is not the reason for us […]

•  On Feb, 13, 2021
•  admin

The PVA wiper is a sheet form material and this material commonly used in the surface cleaning process. Meanwhile, the wiper comes in the dimension 210*210*2mm and this dimension suit for many semiconductor and pharmaceutical industry. A cleanroom is a controlled environment which has to fulfil several stringent criteria. Besides the control of temperature and […]

•  On Sep, 24, 2019
•  admin

We know that PVA sponge roller is the commodity for the cleaning process, but how could we determine the sponge roller cleanliness?  A contaminated sponge brush may not only unable to clean-up the substrate surface but also contaminated the cleaning process.  This is the reason why only quality sponge roller could be used in the […]

•  On Sep, 16, 2019
•  admin

We use the LPC data to understand the loose particle leach out from a dedicated PVA sponge roller. Perhaps, this is a very stringent test to examine a sponge quality. An LPC(Liquid Particle Count) is used to understand the particle distribution within a volume of water.  Under these circumstances, the engineer applies a similar technique […]

•  On Aug, 31, 2019
•  admin

PVA Foaming is the important process for making a quality PVA sponge.  In earlier article, we had discussed the parameters which affected the foaming process, furthermore, we also talked about the importance for maintaining a uniform pore size and pore structure.  In this article, we are going to reveal the detrimental effect due to non-uniform […]

•  On Aug, 24, 2019
•  admin

In last article, the PVA sponge foaming know-how, we had discussed the pore morphology is affecting by the foaming process.  We want to talk about the pore structure so that our reader could have better understanding sponge properties. Sponge Properties – Pore Structure PVA sponge is porous material which constructed by pore structure.  There are […]

•  On Aug, 15, 2019
•  admin

PVA sponge is an open pore structure hence the porosity is an important criterion to determine a sponge quality.  Hence, a quality PVA sponge roller always requires a good control for pore foaming process.  During the foaming process, the PVA raw material shall be reacted with formaldehyde in various process temperature and time in order […]

•  On Jun, 30, 2019
•  admin

We had revealed our understanding of colour dye PVA sponge with our user.  Meanwhile, we also review the methodology for removing the colour dye or colorant inherent in a solution.  In this article, we would like to talk about the PVA sponge status after it being dye with colour. As we discuss earlier, the porous […]

•  On Jun, 30, 2019
•  admin

Recently we encounter a colour dye PVA sponge incident.  We have applied our basic knowledge learning in school for removing the colorant in a solution.  We are using activated carbon as the adsorbent for removing the colorant, without going into details study, we do not optimizing the result by considering the dye concentration, adsorbent dose […]

•  On Jun, 30, 2019
•  admin

One of our customers is using our PVA sponge in a process consist of red colour dye.  They are applying the red colour dye by PU roller, however, the access colour on the PU roller has to be removed by the PVA sponge.  After a few cycle of contact, the PVA sponge will become red […]