interlining; padding fabric; foundation cloth
A stiffening or padding material sewn between the outer fabric and lining of clothing, bags, or crafts to give shape and body. Common in tailoring.
Putting interlining in the collar makes it hold its shape nicely.
A thick padding fabric is used in this bag.
Standard kanji spelling for interlining/padding fabric. 芯 means 'core' and 地 means 'cloth', making the meaning transparent.
Alternate kanji spelling listed. Rarely used; easily confused with 心地 (ここち, 'feeling').
Compound of 芯 (しん, 'core') and 地 (じ, 'cloth, fabric'). The reading しんじ follows standard on'yomi. The alternate spelling 心地 is likely a phonetic substitution (ateji) or historical variant, but the exact derivation is uncertain.