#### Ream Weight Paperboard in Sheets

Ream Weight Paperboard in Sheets

Ream Weight Paperboard in Reels

Ream Weight Paperboard in Sheets

**1.** To find the weight (in kilograms) of a ream containing 500 sheets of a given size in inches and gram-weight.

**Length (in inches) x width (in inches) x gram-weight****___________________________________________________________**** 3,100**

**2.** To find the weight (in kilograms) of a ream containing 500 sheets of a given size in centimeters and gram-weight.

**Length (in cm) x width (in cm) x gram-weight****___________________________________________________**** 20,000**

**3.** To find the gram-weight of a ream containing 500 sheets of a given size in inches and weight (in kilograms).

**Weight (in kg) per ream x 3,100****__________________________________________****Length (in inches) x width (in inches)**

**4.** To find the gram-weight of a ream containing 500 sheets of a given size in centimeters and weight (in kilograms).

**Weight (in kg) per ream x 20,000**** ____________________________________**** Length (in cm) x width (in cm)**

**5.** To find the total weight (in kilograms) of a reel of a given size, length and gram-weight.

**Gram-weight x width (in cm) of reel x length in meter****___________________________________________________________**** 1, 00,000**

**6**. To find the length in meter of a reel of a given size gram-weight and total weight (in kilograms).

**Weight of reel (in kg) x 1, 00,000****____________________________________**** Gram-weight x width (in cm)**

**7.** To find the weight per ream of 480 sheets, if the weight per ream containing 500 sheets is given.

**Multiply weight given by 0.96**

Ream Weight Paperboard in Reels

** **

** Weight of reel in kgs x 100000**** Length of paper in meters = _____________________________________________**** Reel width in cm x grams per sq. meter**

**FOR EXAMPLE: –** The length of paper of substance 100 gsm in a reel of 75 cm width and weighing 150 kg

150 x 100000

________________ = 2000 Meters

75 X 100

** Weight of reel in kg = length in meters x reel width in cm x gsm x .00001**

**FOR EXAMPLE: –** The weight of a reel with a total length of 1500 meters paper of 80 gsm with a reel width of 100 cm

1500 x 100 x 80 x 0.0001 = 120 kg.

** **

** Weight of reel in kg x 100000**** Substance in gsm = _____________________________________________________**** Length of paper in meters x reel width in cm**

**FOR EXAMPLE: –** The substance of paper in a reel of 250 cm width and which weighs 200 kg and contains a total length of 1000 meters of paper

200 x 100000

__________________ = 80 gsm

1000 x 250

** **

** Weight of reel in kg x 10000000**** No. of Sheets =___________________________________________________________**** Gsm x breadth of the sheets in cm x length of the sheets in cm**

**FOR EXAMPLE: –** Approximate number of sheets of size 51 x 76 cms to be obtained from a reel of paper of 60 gsm substance and having a reel width of 255 cm and weighing 175 kg

175 x 10000000

____________________ = 7524 sheets

60 X 51 x 76

**5.** To find the approximate number of sheets of two different sizes to be obtained cut from a reel, the sizes filling the complete deckle (trimmed).

First the proportion of the deckle (trimmed) utilised to obtain the two different sizes is to be found out and consequently the proportion of the weights of the reel to get the two sizes equivalent to the above proportion of the reel utilised to get the two sizes is obtained and the approximate number of sheets for each size is then calculated from the previous formula No. 4, the substance of the paper being known.

**FOR EXAMPLE: –** To fill a deckle (trimmed) of 188 cm a reel of paper of 80 gsm substance is cut into proportions of 2 x 56 cm and 1 x 76 cm to obtain paper of two different sizes of 56 x 91 cm and 76 x 102 cm. Find out the approximate number of sheets of the two sizes obtained by cutting the full reel into sheets, the weight of the reel being 376 kg. Portions of the deckle utilised for sizes 56 x 91 cm and 76 x 102 cm are respectively.

2 x 56 1 x 76

________ And ________

188 188

Therefore weight of the portion of the reel utilised for the size 56 x 91 cm is

376 x 2 x 56

_____________ = 224 kg.

188

and the weight of the portion of the reel utilised for the size 76 x 102 cm is

376 x 1 x 76

_____________ = 152 kg.

188

Approximate number of sheets for size 56 x 91 cm

224 x 10000000

_________________ = 5494 sheets.

80 x 56 x 91

Approximate number of sheets for size 76 x 102 cm

152 x 10000000

_________________ = 2450 sheets.

80 x 76 x 102

**N.B.: –** For any specifications given in inches, first we should convert into cm by multiplying by 2.54 for getting the correct result.

i.e., if the size is 18″ (length) x 23″ (breadth) the sizes are to be converted as 18″ x 2.54 = 45.7 cm and 23″ x 2.54 = 58.4 cm and then only other multiplications are to be computed as above.