Some records come with excellent anti static sleeves and I do not replace those. Otherwise I replace the inner sleeve with the sleeve city version of the MoFi sleeve. The worst sleeves are the paper ones. Paper is at the opposite end of the triboelectric series from PVC. PVC in a paper sleeve is a static electricity generator. Next time you pull a record out of a paper sleeve, gently rub the record with the paper sleeve and watch the paper stick to the record like a magnet. The funny thing is record labels are paper. A record will self generate static electricity because of the paper label. Not real high voltages but if you totally discharge a record and go back to it a week later it will have a small measurable charge on it. If you dangle a fine cotton thread over the record the vinyl will attract it but go over the label and the thread will be repelled!
A record should always be clean when you put it in a new sleeve or you just contaminate the sleeve.
A record should always be clean when you put it in a new sleeve or you just contaminate the sleeve.