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14                                          Industrial Cutting of Textile Materials

         smallest size articles placed in opposite directions within one marker and then to move
         to medium sizes, for example, 36–46, 38–44, and 40–42 (see Section 3.6).

         3.2.4   The most effective use of time and labour
         For the most efficient use of time and labour, it is necessary to make optimal length
         markers, to use the entire length of a spreading table, and to make appropriate use of
         specific spreading and cutting equipment.


         3.2.5   A lay planning sample
         Taking into account all the previously described basic principles, the four steps of lay
         planning are shown in Table 3.1 and described below:
           First planning step: the ordered sizes are united in pairs (36–46, 38–44, and 40–42) to ensure
         ●
           the most efficient use of fabric in the markers. A spread for each marker is made, laying
           down the number of plies that correspond to the total article number of the smallest item of
           each pair. For example, in a spread for a marker: 36–46, 20 plies will be laid as 20 articles
           represents the smallest total order for this pair (38 articles have to be cut for size 36, but only
           20 articles have to be cut for size 46, see Table 3.1).
           Second planning step: the rest of the articles ordered for each size are calculated (36 size,
         ●
           18 pieces; 38 size, 65 pieces; and 42 size, 8 pieces) and combined in new pairings for new
           markers. As the order for size 38 is much bigger than for sizes 36 and 42, it has to be united
           with next one biggest order (size 36). Thus, the pair 36–38 is formed. The spread for this
           marker will be laid in 18 plies (the total remaining number of size 36).
           Third planning step: the last two sizes are paired, and the spread is laid in eight plies.
         ●
           Fourth planning step: a separate marker is created for the one remaining size and spread with
         ●
           the remaining 39 plies.

         3.3   Cutting room management systems

         Several companies offer computerized management systems, which eliminate all
         manual  paperwork.  They  organize, schedule,  and monitor  all  the garment  cutting


          Table 3.1  The lay planning of an order in four steps
                      Ordered number of articles for a size  Combinations
          Planning                                    of sizes in one   Number
          steps      36   38    40    42   44    46   marker         of plies

          1.         38   90    55    63   25    20   36–46          20
                                                      38–44          25
                                                      40–42          55
          2.         18   65    –     8    –     –    36–38          18
          3.         –    47    –     8    –     –    38–42          8
          4.         –    39    –     –    –     –    38             39
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