Unilever has teamed up with supermarket chain Sainsbury’s to create Persil Service, an instore “laundrette-style” service, where shoppers can have their laundry washed, dry-cleaned and ironed.

Unilever is to embark on a multi-million pound revamp of its Persil detergent range this year in an effort to streamline the product range. Industry experts say that the packaged goods giant has ...