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If the latex gloves you are using are insulative and, being a non-conductor, any electrostatic charges on them will not be removed to ground. Charges will be removed from the operator, but not on the glove.
For ESD control, dissipative gloves should be used. Per ANSI/ESD S541 section 7.2.2 Resistance of Dissipative Materials "A static dissipative material shall have a surface resistance of greater than or equal to 1.0 x 10^4 Ohms but less than 1.0 x 10^11 Ohms.
ESD Systems.com has two gloves that are dissipative that might be appropriate for your application
See TD-17200 Glove, Nitrile, Cleanroom
See TD-17100 Glove, Antistatic, Vinyl, Clear
Gloves can be used to address possible Charged Device Model (CDM) failures which is discussed in the ESD Handbook TR 20.20 paragraph 2.7.4 Discharge from the Device, "Once charged, the [ESD sensitive] device is capable of discharging to a conductor causing damage." Increasing the person’s hand resistance by wearing a dissipative glove will slow the speed of the discharge.