OPET DESIGN CONSIDERATIONS

·         CORNERS AND EDGES SHOULD BE DESIGNED WITH A RADIUS, NO SHARP BENDS

 

·         EMBOSSING / DE-BOSSING FOR MOLDED IN BOTTLE DECORATION POSSIBLE

 

·         DECORATION GENERALLY PRESSURE SENSITIVE LABEL DUE TO DIFFICULTY IN SILK SCREEN PRINTING OF PET

 

·         COMPOUND CURVES ON DECO / LABEL AREAS MAKE DECORATION DIFFICULT

 

·         TO UTILIZE EXISTING PREFORMS & PREFORM TOOLING, STRETCH RATIOS MUST BE EVALUATED

CALCULATIONS TO DETERMINE IF A PREFORM WILL MANUFACTURE A BOTTLE

1)      Length Calculations (Axial)

a)      Preform Length x 2.25 Maximum

b)     Preform Length x 1.8 Minimum

c)      Preform Length is calculated from bottom of transfer bead to bottom of preform

2)      Width Calculations (Body)

a)      Preform Width x 4 Maximum

b)     Preform Width x 3 Minimum

c)      Calculation is based upon widest part of bottle to determine if preform will work

3)       Depth vs. Width Calculations for Oval Bottles

a)       Width of bottle can be no more than twice the depth

BODY DIMENSIONAL TOLERANCES

(except as noted)

DIMENSION

(inches)

TOLERANCE

HEIGHT

WIDTH & DEPTH

LESS THAN 1.000

+/-.030

+/-.030

1.000 AND LESS THAN 2.000

+/-.030

+/-.050

2.000 AND LESS THAN 4.000

+/-.050

+/-.060

4.000 AND LESS THAN 6.000

+/-.050

+/-.080

6.000 AND LESS THAN 8.000

+/-.060

+/-.090

8.000 AND LESS THAN 10.000

+/-.060

+/-.110

10.000 AND LESS THAN 12.000

+/-.080

+/-.120

12.000 AND LESS THAN 15.000

+/-.090

+/-.150

15.000 AND LESS THAN 18.000

+/-.110

+/-.150



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