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Three new abietane‐type diterpenoids, 7β‐acetoxy‐12‐methoxyabieta‐8,11,13‐triene‐6α,11‐diol (1), 7α‐acetoxy‐12‐methoxyabieta‐8,11,13‐triene‐6α,11‐diol (2), and 6α‐acetoxy‐12‐methoxyabieta‐8,11,13‐triene‐7α,11‐diol (3), as well as two known abietane‐type diterpenoids, 12‐methoxyabieta‐8,11,13‐triene‐6α,7β,11‐triol (4) and 6α‐acetoxy‐12‐methoxyabieta‐8,11,13‐triene‐7β,11‐diol (5), were isolated from the MeOH extract of the bark of Cryptomeria japonica. Their structures were determined by analysis of spectroscopic data and comparison of NMR data with those of related metabolites.

This paper deals with the durable-press finishing for cotton fabrics using dimethylol ethylene urea (DMEU) condensates having various chain lengths. The results obtained at various concentrations of the crosslinking agents showed that such agents with shorter chain lengths improved dry crease recovery angle whereas wet crease recovery angle was not affected by chain length.A better balance between the dry and wet crease recovery angles was obtained by increasing crosslinking agent content and also by using the crosslinking agents with the shorter chain length.The increase of dry and wet crease resistance caused a decrease in the tensile strength of finished fabrics. A small decrease in tensile strength was observed when crosslinking agents with longer chain length were used. The effects of the chain length of crosslinking agents on the physical properties of durable-press cotton fabrics may be explained as the crosslinking structure formed in the finished cotton fabrics.

Phytochemical investigation of the methanol extract of the bark of Cryptomeria japonica has led to the isolation of two new abietane-type diterpenoids, 7a-(2’-butoxyethoxy)deoxocryptojaponol (1) and 7p-(2’-butoxyethoxy)deoxocryptojaponol (2). Their structures were established by means of 1D and 2D NMR spectra and HR-EI-MS, as well as on comparison with the reported data.