<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">cardboard</topic></authority><related type="narrower"><topic>bristol board</topic></related><related type="narrower"><topic>illustration board</topic></related><related type="narrower"><topic>ivory board</topic></related><related type="narrower"><topic>mat board</topic></related><related type="narrower"><topic>millboard</topic></related><related type="narrower"><topic>Ross board (TM)</topic></related><related type="narrower"><topic>scratchboard</topic></related><related type="narrower"><topic>corrugated board</topic></related><related type="narrower"><topic>mounting board</topic></related><related type="narrower"><topic>conservation board</topic></related><related type="narrower"><topic>railroad board</topic></related><related type="narrower"><topic>honeycomb board</topic></related><related type="narrower"><topic>binder&apos;s board</topic></related><related type="other"><topic>corrugated board</topic></related><related type="broader"><topic>pasteboard</topic></related><variant type="other"><topic>card board</topic></variant><variant type="other"><topic>card-board</topic></variant><variant type="other"><topic>cardboards</topic></variant> <note xml:lang="en"><![CDATA[ A type of stiff pasteboard that is thicker than 0.006 inches, typically consisting of good-quality chemical pulp or rag pasteboard, and varying greatly in type and stability. High quality archival cardboard is made from rag pulp and has a low acid content, used for mounting prints, drawings and watercolors. Other grades of cardboard is used for cards, signs, printed materials, and high-quality boxes. Inferior grades of cardboard, such as corrugated board, are made from coarsely ground sulfite treated wood pulp; for this board, use "corrugated board." The first carboard box was produced in England in 1817. Corrugated cardboard was patented in 1871. ]]></note></mads>