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Method of making cutting mat backing and cutting mat

A mat-backed, cylindrical technology, applied in chemical instruments and methods, synthetic resin layered products, metal processing, etc., capable of solving problems such as blemishes, end-user rejection of cutting mats, increased waste ripples, etc.

Active Publication Date: 2020-05-08
QINGDAO BO FA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the cutting or scoring process is incomplete, these low spots result in blemishes or voids in the final corrugated product
These imperfections lead to increased waste waviness and can lead to end user rejection of cutting mats due to defects

Method used

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  • Method of making cutting mat backing and cutting mat
  • Method of making cutting mat backing and cutting mat
  • Method of making cutting mat backing and cutting mat

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Example 1 is a roving prepared by winding a woven carbon fiber (CF) material on a cylinder under tension, and applying each layer at an angle so that the edges of the previous winding and the subsequent winding abut each other. The roving includes two layers of CF of 84 grams per square meter, two layers of CF of 290 grams per square meter and two other layers of CF of 84 grams per square meter. These layers are manually superimposed and cured in horizontal and vertical ovens. The resulting roving was 0.077 inches thick.

Embodiment 2

[0056] Example 2 is a roving prepared by a filament winding process, using a series of 24 glass fiber strands, wound on a cylinder under tension and spaced in a width of 4 inches. The roving consists of two layers at 54 degrees relative to the central axis of the cylinder, followed by another four layers wound at 85 degrees relative to the central axis of the cylinder. UV cure these layers. The resulting roving was 0.056 inches thick.

Embodiment 3

[0057] Example 3 is a roving prepared by winding a woven glass fiber (GF) material onto a cylinder under tension. Each layer is applied at an angle so that the edges of the previous and subsequent windings abut each other. The roving includes two layers of GF of 84 grams per square meter, two layers of GF of 290 grams per square meter and two other layers of GF of 84 grams per square meter. The layers were manually superimposed and cured in a horizontal oven. The resulting roving was 0.056 inches thick.

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Abstract

In various embodiments, a method of making a cutting mat backing includes creating a roving by wrapping a fiber material around a rotary cylinder under tension to form a plurality of layers. Each of the plurality of layers is angled with respect to a central axis of the rotary cylinder and the roving has a normalized axial flexural rigidity of from 2 lbf.in2 to 30 lbf.in2 over a beam width of 1 inch and a ratio of normalized circumferential flexural rigidity to normalized axial flexural rigidity of from 1:1 to 30:1. The method further includes infusing the roving with a polymer resin and curing the resin via electromagnetic radiation to form the cutting mat backing. Cutting mats including the cutting mat backing are also described.

Description

[0001] Cross references to related applications [0002] This patent application claims priority to U.S. Provisional Patent Application Serial No. 62 / 222,487 filed on September 23, 2015 and titled "Rigid Cutting Mats and Methods of Making Same", which is incorporated herein by reference in its entirety. Technical field [0003] The subject matter described herein relates to cutting mats, and more specifically to cutting mats that are suitable for mounting on a rotating anvil and include a resin impregnated roving backing. Background technique [0004] Rotary die cutting machines are used for cutting and scoring operations in many industries, including in the manufacture of corrugated products (such as boxes) and containers. Generally, a rotary die cutting machine conveys a continuously moving workpiece through a nip between a cutting die and a rotary anvil. The cutting die includes a blade protruding from its surface to provide the desired cutting and scoring action to the workpiec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C70/32B26D7/20
CPCB26D7/204B29C70/32B29C35/0805B29C2035/0827B29K2075/00B29K2307/04B29K2309/08B29K2995/0082B29L2009/00B32B5/02B32B27/08B32B27/40B32B2262/101B32B2262/106B32B2307/546
Inventor R·R·沃克曼A·G·米勒J·C·罗格斯
Owner QINGDAO BO FA TECH CO LTD
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