400 500 --- = 16 ends --- = 20 picks 25 25
=Development of the Pattern.=--When the outline of the figure has been drawn on the point paper, it may be coloured in. This is done by going over the line carefully and filling in all the squares that the outline passes through. If the ground of the fabric is to be plain, the outline of the figure must be kept plain--that is, it must move an odd number of threads each time, so that the plain ground may be carried up to the figure without spoiling it.
If a solid weft figure is required on a warp satin ground the figure may be coloured all over with, say, red paint, and the developing dots be put on in blue or other colour; but if much shading or fancy treatment is required, it is more convenient to develop the figure in one colour, as in Fig. 380. Some designers colour the ground with red, and put the satin or other dots over this in another colour, leaving the figure white, and then develop the figure by putting on the required red dots to lift the warp for shading or binding.
This method is advantageous where there is more figure than ground, which is often the case; but, as a general rule, the figure is coloured with red, and the binding dots of the ground in the same colour, another colour being used for the binding of the figure when required.
Fig. 380 illustrates the principle of developing a weft figure on a warp satin ground by shading from warp to weft.
The outline of the figure is first sketched on the point paper, and then the whole is covered with the satin dots. By adding single dots where required any degree of light and shade can be obtained. It is best to add the dots all to the same side of the float, and, as a rule, it is most convenient to add them singly. The effect is obtained by gradually increasing the float from one to seven, and thus there are seven degrees of light and shade between the two opposite eight-thread satins.
Fig. 381 will illustrate the principle of shading more perfectly. This is a small stripe of shaded eight-end satin. The space to be shaded is divided into seven equal parts of five threads each, as there are seven changes to be made. The first five ends are left as they are, and a dot is added to each one in the second division, two dots are added to each in the third division, and so on, until the float of seven is reached at the right-hand side of the stripe.