Abstract
Following the previous paper, replicas of the neck surfaces were made for 14 female subjects under 7 different postures of their necks, and flat neck surface patterns were developed from the replicas.
In this paper, the changes in area, length of the standard lines and shape of these 7 patterns were investigated. The following were obtained, with regard to drafting of standing-collar pattern which fits the neck movement.
1) The changes in the area of neck patterns largely related to the changes in the length of vertical lines. Both decreased in the side to which the neck moved and increased in the opposite side. Maximum of the changes in the area were -32.33 to -41.09 % at the back medial and the back lateral in the neck retroflextion, and 16.06-26.15 % at the back medial in the neck anteflexion. Maximum of the changes in the length of vertical lines were -40.05 to -42.52 % at the back in the neck retroflexion, and 18.10-25.04 % at the back in the neck anteflexion.
2) The changes in the length of horizontal lines were apparently less than those in the length. of vertical lines. The changes of the neck-line and the edge-line were 6.86 and 6.10 % respectively in the neck retroflextion. The back medial, the back lateral and the front lateral of the neck-line and the back medial and the back lateral of the edge-line showed extension.
3) The shape of the neck surface changed variously with the neck movement. In order to construct standing-collar corresponding to the changes, it seemed that we must pay attentions to the following.
i) The vertical constriction of front neck surface in the neck anteflexion is important for the decision of the front collar height of standing-collar.
ii) The neck retroflexion is easier when the neck-line and the edge-line of standing-collar are a little longer than the neck base line and the neck line in the normal posture.
