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PKG Week 3 Lecture 5 Wood Packaging

by: Danielle Linska

PKG Week 3 Lecture 5 Wood Packaging PKG 101

Marketplace > Michigan State University > PKG 101 > PKG Week 3 Lecture 5 Wood Packaging
Danielle Linska

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About this Document

These are the highlighted notes from Lecture 5 on September 15th. These notes cover and highlight all of the important information Professor Koning covered about Wood Packaging.
Principles of Packaging
Dr. Koning
Class Notes
Packaging Science, Packages, wood
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This 3 page Class Notes was uploaded by Danielle Linska on Sunday September 18, 2016. The Class Notes belongs to PKG 101 at Michigan State University taught by Dr. Koning in Fall 2016. Since its upload, it has received 93 views.


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Date Created: 09/18/16
9/15/16  Lecture  5  Week  3  Wood  Packaging Thursday,  September   15,  2016 10:20  AM Yellow  is  important  facts Green  is  definitions Bold  is  also  important Uses  of  Wood • For  packaging,  the  most  common  use  of  wood  is  as  a  or  materialf manufacturing  paper  and  paperboard. Wood  Applications • Wood  is  used  for  packaging  application  in  the  form  of  barrels,  boxes,  baskets,   wire-­‐bound  containers,  crates,  and  pallet. • The  biggest  use  of  wood  in  packaging  is  for  the  manufacture  of  pallets. • While  pallets  can  also  be  made  of  plastic   ○ Wood  is  often  the  best  overall  choice  for  pallets  in  terms  of  the   combination  of  strength,  weight,  and  cost • Another  advantage   Wood  packages  can  easily  be  custom  made  in  small  quantities,  while  most   other  materials  require  longer  production  runs  to  be  economical. • Durable  Goods   • Spools   Advantages  of  Using  Wood • Good  Strength  to  Weight  ratio   • Economical  structural  material • It  does  not  require  sophisticated  equipment • IDEAL  FOR  RIDIG  STRUCTURES  NEEDED  IN  SMALL  QUANTITIES • Wood  does  not  corrode ○ Wood  has  excellent  rigidity  and  outstanding  mechanical  properties  in   bending Disadvantages  of  Using  Wood • Wood  is  not  well  suited  to  high  speed  mechanized  packaging  operations   ○ High  labor  factor ○ Bulky § Shipping   Disadvantages  of  Using  Wood • Wood  is  not  well  suited  to  high  speed  mechanized  packaging  operations   ○ High  labor  factor ○ Bulky § Shipping   § Storage   ○ Wood  is  moisture  sensitive § Can  lead  to  stress  on  joints,  as  well  as  to  wrapping  an  even  fracture Types  of  Wood   • Soft  woods  -­‐is  wood  from  conifers   ○ Which  are  evergreens ○ Softwoods  are  generally  easy  to  work  with,  but  has  less  strength  than   hardwood  (in  wood  applications-­‐  not  paper) ○ Examples:  pine,  fir,  cedar,  redwood • Hard  woods-­‐  hardwood  is  wood  from  deciduous  trees   ○ Hardwoods  are  generally  more  difficult  to  work  with  and  are  stronger   than  soft  woods ○ Examples:  oak,  maple,  birch,  walnut,  cherry Four  Structural  Wood  Groups • Group  1:  lower  density   • Group  2:  medium  density   • Group  3:  medium -­‐density   • Group  4:  high -­‐density ○ Grouped  by  densities Wood  Properties • The  moisture  conten    of  wood  (MC)  is  the  ratio  of  the  mass  of  water  in  the   wood  to  a  reference  wood  mass. • The  process  of  drying  wood  out  is easoning.   Seasoning  of  Wood   • The  strength  of  the  wood  tends  to  increase  as  it  dries,  and  it  is  more  resistant  to   attack  by  insects  and  microorganisms • Another  advantage  of  drying  wood  is  that  its  weight  is  substantially  decreased Wood  Properties   • Wood  for  packaging  should  be  well  seasoned   ○ Either  by  drying  or  kiln  drying   § And  have  a  moisture  content  around  15% -­‐20% • A  nominal  1"x4"  measures  about  (3/4)"  x  3(1/2)" Wood  Properties   • Wood  for  packaging  should  be  well  seasoned   ○ Either  by  drying  or  kiln  drying   § And  have  a  moisture  content  around  15% -­‐20% • A  nominal  1"x4"  measures  about  (3/4)"  x  3(1/2)" Processed  Wood • Plywood  -­‐more  uniform  than  lumber   ○ Less  shrinkage   Particle  Board  &  OSB  (Oriented  Strand  Board)   • OSB,  weight  is  similar  and  a  lower  cost,  as  well  as  the  same  strength  and   durability  as  plywood.  2X  shear  strength  of  plywood Pallets   • Biggest  use  for  wood  in  packaging   ○ 1  Billion  per  year • CHEP   Two  Broad  Categories  of  Pallets   1. Stringer  Style a. The  first  dimension  (48")  is  along  the  length  of  the  stringer  board   b. Two  way  entry   c. Partial  four  way  entry  (must  have  notches) 2. Block  Style GMA  standardized  pallet   • Grocery  manufacturers  Association  (GMA) • There  are  two  GMA  pallet  sizes  48x40  and  48x48   • The  pallets  are  designed  to  fit  across  in  a  standard  US  truck EuroPallet • 9  block  style  design   ○ 1,200  mm  x  800  mm  and  1,200  mm  x  1,000  mm   ○ The  GMA  dimensions  and  the  EuroPallet  dimensions  are  not  identical


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