interliners

/ˌɪntərˈlaɪnərz/
noun
  1. Plural of interliner; multiple layers of material used between outer fabric and lining, or multiple people or things that insert text between lines.
    • The museum displayed coats with various interliners from different eras.
    • The sewing kit contained several interliners for different types of fabric.
    • The editors worked as interliners, adding comments to the draft.