Insulation products and methods and machines for making insulation products
The presently disclosed subject matter generally relates to recyclable insulation material for shipping containers, groceries bags, etc., machines for making the recyclable insulation material, and methods for the making the recyclable insulation material. In one aspect, an insulation product may include a first layer and a first continuous paper sheet formed into a first plurality of flexible loops disposed on and attached to the first layer and defining a first plurality of air channels that extend in a direction that is substantially perpendicular with a machine direction of the insulation product. A take up factor of the first continuous paper sheet to the first layer may be greater than 1:1.
1. An insulation product, comprising:
a first layer comprising one or more first polymer-coated regions; and
a first continuous paper sheet formed into a first plurality of flexible loops on the first layer, at least one flexible loop of the first plurality of flexible loops attached to the first layer at the one or more first polymer-coated regions when formed, and the first plurality of flexible loops defining a first plurality of air channels that extend in a direction that is substantially perpendicular with a machine direction of the insulation product,
wherein a take up factor of the first continuous paper sheet to the first layer is greater than 1:1,
wherein the first continuous paper sheet has a basis weight of about 18 lbs. per 3000 ft. 2 to about 75 lbs. per 3000 ft 2 , and
wherein a first axis, perpendicular to lengths of the first plurality of air channels and parallel to a thickness of the insulation product, passes through (i) one of the one or more first polymer-coated regions of the first layer and (ii) the first continuous paper sheet at least three times.
2. The insulation product of claim 1 , wherein the take up factor is 1.1:1 to 7.5:1.
3. The insulation product of claim 1 , wherein the insulation product has a first indentation force deflection of 0.75 to 205 pounds per square inch at 25% thickness reduction.
4. The insulation product of claim 3 , wherein the insulation product has a second indentation force deflection of 1.5 to 180 pounds per square inch at 50% thickness reduction.
5. The insulation product of claim 4 , wherein the insulation product has an indentation yield deflection force of 0.5 to 30 pounds per square inch at 25% thickness reduction.
6. The insulation product of claim 5 , wherein the insulation product has an R-value of 0.9 to 2.2.
7. The insulation product of claim 5 , wherein the insulation product has an R-value of 1.3 to 1.7.
8. The insulation product of claim 3 , wherein the first indentation force deflection is 12 to 85 pounds per square inch at 25% thickness reduction.
9. The insulation product of claim 1 , wherein the plurality of flexible loops is not attached to one another.
10. The insulation product of claim 2 , further comprising a second layer comprising one or more second polymer-coated regions, wherein the first continuous paper sheet is formed into a second plurality of flexible loops on the second layer and at least one flexible loop of the second plurality of flexible loops is attached to the second layer at the one or more second polymer-coated regions.
11. The insulation product of claim 1 , further comprising:
a second layer comprising one or more second polymer-coated regions;
a second continuous paper sheet formed into a second plurality of flexible loops on the second layer, at least one flexible loop of the second plurality of flexible loops attached to the second layer at the one or more second polymer-coated regions, and the second plurality of flexible loops defining a second plurality of air channels; and
a third layer disposed on and attached to the second continuous paper sheet,
wherein at least one second axis, perpendicular to lengths of the second plurality of air channels and parallel to a thickness of the insulation product, passes through the second continuous paper sheet at least three times.
12. The insulation product of claim 1 , wherein the take up factor is about 1.8:1 to about 60:1.
13. The insulation product of claim 1 , wherein sides of at least some adjacent flexible loops of the first plurality of flexible loops contact each other without being adhered to one another.
14. The insulation product of claim 1 , wherein the take up factor is about 2:1 to about 60:1.
15. The insulation product of claim 1 , wherein a pitch between at least some of the plurality of flexible loops is about 0.3 inches to about 0.8 inches.
16. The insulation product of claim 1 , wherein the first layer comprises kraft paper, machine glazed (MG) paper, smooth finished paper, machine finished paper, glassines, one or more polymeric films, supercalendered kraft paper, or combinations thereof.
17. The insulation product of claim 1 , wherein a thickness of the insulation product is between about 0.25 inches to about 1.25 inches in a Y-direction.
18. The insulation product of claim 1 , wherein the basis weight of the first continuous paper sheet is about 60 lbs. per 3000 ft. 2 .
19. The insulation product of claim 1 , wherein the first layer comprises a polymeric film or kraft paper.
20. The insulation product of claim 1 , wherein the first continuous paper sheet has a basis weight that is less than a basis weight of the first layer.
21. The insulation product of claim 1 , wherein the first continuous paper sheet has a basis weight that is greater than a basis weight of the first layer.
22. The insulation product of claim 1 , wherein the take up factor is about 1.2:1 to about 4:1.
23. The insulation product of claim 1 , wherein the one or more first polymer-coated regions comprise a continuous polymer coating covering a surface of the first layer facing the first continuous paper sheet.
24. The insulation product of claim 23 , wherein only portions of the first layer and corresponding portions of the continuous polymer coating are heat bonded to the first continuous paper sheet.
25. An insulation product, comprising:
a first layer comprising one or more first polymer-coated regions; and
a second layer comprising one or more second polymer-coated regions; and
a paper core formed into a plurality of flexible loops on the first layer and the second layer, the plurality of flexible loops comprising a first flexible loop formed on and attached to the one or more first polymer-coated regions of the first layer when formed, a second flexible loop formed on and attached to the second polymer-coated regions of the second layer when formed, and a third flexible loop formed on and attached to the one or more first polymer-coated regions of the first layer when formed, and wherein the second flexible loop is disposed between the first and third flexible loops proximate the second layer,
wherein the paper core is disposed between and attached to the first layer and the second layer,
wherein the paper core has a basis weight of about 18 lbs. per 3000 ft. 2 to about 75 lbs. per 3000 ft. 2 , and
wherein an axis, perpendicular to a length of the insulation product and parallel to a thickness of the insulation product, passes through (i) one of the one or more first polymer-coated regions of the first layer and (ii) the paper core at least three times.
26. The insulation product of claim 25 , wherein the plurality of flexible loops defines a plurality of air channels with lengths that run approximately parallel to one another and extend in a direction that is substantially perpendicular with a machine direction of the insulation product.
27. The insulation product of claim 25 , wherein:
the first flexible loop has a first convex surface facing and attached to the first layer,
the second flexible loop has a second convex surface facing and attached to the second layer, and
the third flexible loop has a third convex surface facing and attached to the first layer.
28. The insulation product of claim 25 , wherein the paper core comprises an alternating upper curved surface and a lower smooth surface.
29. The insulation product of claim 25 , wherein the paper core consists of a continuous single sheet of paper.
30. An insulation product, comprising:
a first layer comprising one or more first polymer-coated regions; and
a first continuous paper sheet formed into a first plurality of flexible loops on the first layer, at least one flexible loop of the first plurality of flexible loops attached to the first layer at the one or more first polymer-coated regions when formed, and the first plurality of flexible loops defining a first plurality of air channels that extend in a direction that is substantially perpendicular with a machine direction of the insulation product,
wherein the insulation product has an indentation force deflection of 1.5 to 180 pounds per square inch at 50% thickness reduction,
wherein the insulation product has an R-value of 1.3 to 1.7,
wherein the first continuous paper sheet has a basis weight of about 18 lbs. per 3000 ft. 2 to 75 lbs. per 3000 ft. 2 , and
wherein a first axis, perpendicular to lengths of the first plurality of air channels and parallel to a thickness of the insulation product, passes through (i) one of the one or more first polymer-coated regions of the first layer and (ii) the first continuous paper sheet at least three times.