Effects of Surface Properties of Tipping Papers on the Oil Resistance Function for the Capsule-containing Filters

Transcription

1 Effects of Properties of Tipping Papers on the Oil Resistance Function for the Capsule-containing Filters Man Seok Seo, Sung Jong Ki, Soo Ho Kim, and Jong Yeol Kim

2 Contents Introduction Research Background Research Objectives Experimental & Methods Results & Discussion Conclusions

3 Introduction Functions of tipping paper Combining the tobacco rod with filter tip Communication with customer (Printing, design, brand logo, brand image, etc.) Emotional quality (Lip release) Carrier & medium for flavors (Printing and coating technology) Transparent tipping paper (Visible filter technology) What is the next main special function for tipping paper? Combined with capsule-containing filter technology Replacement for function of filter materials Functions of tipping papers will be developed and upgraded with other part of technology

4 Research background Technical environment and trend for consumers Increase of capsule-containing filter Flavor capsules : The unique and impacts of tastes Filter plug wrapper - Oil resistant properties for anti-contamination after capsule breakage - Non porous materials for anti-migration of capsule liquids On-line perforation equipment for tipping paper - Control of smoke delivery by making perforated holes Increase of on-line perforation facility-overloads The more capsule-containing filters, the more use of on-line perforation facilities

5 Research background Change of way of thinking for oil resistant materials Oil resistant properties from filter plug wrapper to tipping paper No need for oil resistant filter plug wrapper Only outer filter plug wrapper used for capsule-containing filter Mono acetate capsule-containing filter No need for On-line perforation equipment for tipping paper - Decreasing the on-line perforation facility-overloads Necessity for oil resistant tipping paper Replacement of oil resistant filter plug wrapper Development of mono acetate capsule-containing filter without oil resistant filter plug wrapper Flexibility for On-line perforation facility use (No facility-overloads)

6 Research background New approach for oil resistant tipping paper Interaction of polymer with surface properties of tipping paper - Oil resistant barrier by polymer application - Good inter surface properties between polymer barrier and tipping paper - Optimal elastic modulus for perforation process for tipping paper Polymer barrier Tobacco taste against oil liquid Oil resistant tipping paper Intersurface strength Tobacco taste between polymer barrier and tipping paper For oil resistant tipping paper, surface perpoerties of tipping paper should be considered

7 Research objectives Microsmoothness Oil resistance Tipping papers structure properties Polymer application

8 Experimental & Methods

9 Materials Tipping paper Basis weight (g/m 2 ) Thickness (um) Smoothness (Sec) Oil resistance (Kit No.) (Top side) (Top side) Polymer for barrier coating : Low Density Polyethylene Density (g/m 3 ) Melt index (g/10 min) Melting temperature ( ) T-die coating temperature ( ) CAS No Primary coating polymer (Anchor coating) Water soluble polymer (Weak cationic polymer)

10 Experimental methods Measurement of Contact angle method, Dyne pens for checking surface Measurement of Oil resistance 3M Kit (The higher Kit No., the higher oil resistance) Manufacture of oil resistant tipping paper 1 st step : Oil resistant coating Base paper Primary coating/corona treatment T-die coating/corona treatment Water coating 2 nd step : General converting process Printing (Over print varnish) 1 st Slitting Perforating holes 2 nd Slitting Cigarettes

11 Experimental methods Manufacture of oil resistant tipping paper (M1) Water coating (M2) Base paper (Bottom side) (M3) Base paper (Top side) (M4) Corona treatment (M5) 2 nd step : General converting process 1 st step : Oil resistant coating Primary coating (M6) Polyethylene(PE) coating (M7) PE polymers was coated onto the Top side of base paper Corona treatment (M8) Materials Application and treatment Thickness (um) M1 Base paper(bottom)+water coating+ OPV M 2 Base paper (Bottom)+Water coating M 3 Base paper (Bottom) 65 M 4 Base paper (Top) 62 Wight (g/m 2 ) M 5 Base paper (Top) +Corona treatment M 6 Base paper(top)+corona treatment+ Primary coating M 7 Base paper (Top)+Corona treatment+ Primary coating +PE coating M 8 Base paper (Top)+Corona treatment+ Primary coating +PE coating + Corona treatment Remark Bottom of Base paper Top side of base paper

12 Results & Discussion

13 Effects of PE coating and thickness (1) PE coating, thickness VS. Oil resistance Over print varnish Over print varnish Over print varnish Over print varnish PE coating (8 um) PE coating (12 um) PE coating (18 um) Test 1 Test 2 Test 3 Test 4 Test Treatment PE coating thickness (um) Oil resistance (Kit No.) Remark 1 Control 62 (Base paper) - 0 Tipping paper 2 PE coating (8 um) 30(PE coated layer) PE coating (12 um) 30(PE coated layer) PE coating (18 um) 30(PE coated layer) Oil resistance : The higher Kit No., the higher oil resistance Oil resistance increased by PE coating (From Kit No.0 to Kit No. 11) decreased by PE coating : Base paper (62 mn/m) PE coating (30 mn/m) Oil resistance was the same at over 8 um thickness of PE coating

14 Effects of surface (2) /Smoothness VS. Separation of PE coating layer Separation of PE coating layer PE coating (9 um) PE coating (9 um) [Serious separation] [Serious separation] Test 1 Test 2 Test Treatment (Tipping paper) (PE coating layer) PE coating thickness (um) Oil resistance (Kit No.) Smoothness (Sec) Separation Test 1 PE coating(top) 62 (Top) (Serious) Test 2 PE coating(bottom) 65(Bottom) (Serious) Oil resistance : The higher Kit No., the higher oil resistance Serious separation of PE coating layer was detected during perforation process Separation of PE coating layer was not affected by the difference of smoothness Interfacial adhesion between PE coating layer and paper surface should be improved

15 Effects of corona treatment (3) Corona treatment VS. Separation of PE coating layer Test [A little improved] [Serious] Treatment (Tipping paper) Corona/PE coating Oil resistance : The higher Kit No., the higher oil resistance Corona treatment of top side made less separation of PE coating layer compared to that of bottom side - of tipping paper increased by corona treatment Corona treatment of top side was more effective compared to that of bottom side - Top side : binder composition(starch, surface sizing) and more pulps - Bottom side : filler component (Tipping paper) (Corona) (PE coating layer) PE coating thickness (um) Corona/PE coating (9 um) Test 1 Test 2 Oil resistance (Kit No.) Smoothness (Sec) Test 1 PE coating(top) 62 (Top) 68 (Top) Separation (A little improved) Test 2 PE coating(bottom) 65 (Bottom) 70 (Bottom) (Serious) Corona 15 A, 80 m/min

16 Effects of primary coating(4) Primary coating VS. Separation of PE coating layer [Good] Primary coating /PE coating(9um) Primary coating /PE coating(9um) Test 1 Test 2 [A little improved] Test Treatment (Tipping paper) (Primary coating) (PE coating layer) PE coating thickness (um) Oil resistance (Kit No.) Smoothness (Sec) Separation Test 1 PE coating(top) 62 (Top) 72 (Top) O (Good) Test 2 PE coating(bottom) 65 (Bottom) 73 (Bottom) Separation of PE coating layer decreased by application of primary coating (A little improved) Corona 15 A, 80 m/min Oil resistance : The higher Kit No., the higher oil resistance Application of primary coating increased interfacial adhesive force between PE coating layer and paper surface Primary coating onto the top side of paper was more effective that that of bottom side - Top side : binder composition(starch, surface sizing) and more pulps

17 Effects of corona treatment and primary coating(5) Corona treatment and primary coating VS. Separation of PE coating layer Test Treatment Corona/Primary coating /PE (Tipping paper) (Tipping paper) (Corona) (Primary coating) (PE coating layer) Corona/Primary coating /PE PE coating thickness (um) Oil resistance (Kit No.) Smoothnes s (Sec) Test 1 PE coating(top) 62 (Top) 68 (Top) 72 (Top) Test 2 [Very good] PE coating(bottom) 65 (Bottom) Test 1 Test 2 70 (Bottom) 73 (Bottom) [A little improved] Separation Corona (Very good) 15 A, (A little 80 m/min improved) Oil resistance : The higher Kit No., the higher oil resistance Separation of PE coating layer significantly decreased by application of corona treatment and primary coating Application of corona treatment primary coating increased interfacial adhesive force between PE coating layer and paper surface Primary coating onto the top side of paper was more effective that that of bottom side

18 Effects of corona treatment and primary coating(6) Corona treatment and primary coating VS. Paper curl Top side, corona(15 A, 150 m/min), primary coating(0.03 g/m 2 ), ethyl alcohol (0%, 5%, 15%. 35%), PE coating(9 um) Corona/Primary coating /PE Corona/Primary coating /PE Test Treatment Test 1 Test 2 (Tipping paper) (Corona) Ethyl alcohol (%) (Primary coating) (PE coating layer) PE coating thickness (um) Test 1 PE coating(top) 68 (Top) Rolling Test 2 PE coating(top) 68 (Top) Test 3 PE coating(top) 68 (Top) Test 4 PE coating(top) 68 (Top) Paper curl was reduced by the addition of ethyl alcohol into primary coating polymer - Main component of primary coating solution was water - Replacement of water by ethyl alcohol was effective to decrease curl Curl (mm)

19 Effects of primary coating(7) Primary coating VS. Perforation permeability deviation of paper Top side, corona(15 A, 150 m/min), primary coating(0.03 g/m 2 ), ethyl alcohol (0%, 5%, 15%. 35%), PE coating(9 um) Corona/Primary coating /PE Corona/Primary coating /PE Test Treatment Test 1 Test 2 (Tipping paper) (Corona) Ethyl alcohol (%) (Primary coating) (PE coating layer) PE coating thickness (um) Perforation permeability deviation (%) Test 1 PE coating(top) 68 (Top) ~15 Test 2 PE coating(top) 68 (Top) ~10 Test 3 PE coating(top) 68 (Top) ~4 Test 4 PE coating(top) 68 (Top) ~3 Perforation permeability deviation was reduced by the addition of ethyl alcohol into primary coating polymer - The addition of ethyl alcohol improved the coating layer formation of primary coating

20 Effects of water coating(8) Water coating VS. Paper curl Top side, corona(15 A, 150 m/min), primary coating(0.03 g/m 2 ), ethyl alcohol (5%), PE coating(9 um), water coating(2/5/10 g/m 2 ) Corona/Primary coating /PE Corona/Primary coating /PE Test 1 Test 2 Test Treatment (Tipping paper) (Corona) Ethyl alcohol (%) (Primary coating) (PE coating layer) PE coating thickness (um) Test 1 PE coating(top) 68 (Top) Test 2 PE coating(top) 68 (Top) Test 3 PE coating(top) 68 (Top) Test 4 PE coating(top) 68 (Top) Water coating of bottom side decreased the reverse curl of paper - Drying and evaporation of water molecules made reverse paper curl reduced Curl (mm)

21 Summary What are main factors for oil resistant tipping paper? of paper Oil resistance of paper Interfacial adhesion Interfacial adhesion Ethyl alcohol Water coating - properties + Separation Deviation of CU Reverse curl - Properties of oil resistant paper +

22 Conclusions

23 Conclusions Oil resistant barrier formation : surface properties of paper and film - - composition : Binder, filler, pulp, etc. Reduction of separation : Application of polymers and corona treatment - Interfacial adhesion of paper and film during perforation process Reduction of reverse curl and deviation of permeability - Water coating - Addition of ethyl alcohol addition into coating solution

24 Thank you for your attention!! 38/38