tcolorbox 사이의 간격

Question

인쇄용 라벨을 만들고 싶지만 라벨 사이의 간격(수직 및 수평)을 더 크게 만들고 싶습니다. 나는 tcolorboxes로 작업하고 있으며 내 코드는 다음과 같습니다.

\documentclass[a4paper, 10pt]{article}

\usepackage{geometry}
\geometry{hmargin=2cm,vmargin=1.9cm}


\usepackage{tcolorbox}
\tcbuselibrary{raster}

\newtcolorbox{cadreint}
{
  arc is angular,
  colback=white,
  arc=4.5pt,
  boxrule=1pt
}

\newcommand{\etiquette}[1]{\begin{cadreint}\vspace{#1}\end{cadreint}}

\begin{document}
\thispagestyle{empty}

\begin{tcbitemize}[raster columns=2,raster equal height,
colframe=black,colback=white, arc is angular, arc=8pt, left=1.1pt,right=1.1pt,top=1.1pt,bottom=1.1pt, boxrule=2.4pt,]
\tcbitem[]
\etiquette{3.9cm}
\tcbitem[]
\etiquette{3.9cm}
\tcbitem[]
\etiquette{3.9cm}
\tcbitem[]
\etiquette{3.9cm}
\tcbitem[]
\etiquette{3.9cm}
\tcbitem[]
\etiquette{3.9cm}
\tcbitem[]
\etiquette{3.9cm}
\tcbitem[]
\etiquette{3.9cm}
\tcbitem[]
\etiquette{3.9cm}
\tcbitem[]
\etiquette{3.9cm}

\end{tcbitemize}

\newpage
\thispagestyle{empty}
\begin{tcbitemize}[raster columns=3,raster equal height,
colframe=black,colback=white, arc is angular, arc=8pt, left=1.1pt,right=1.1pt,top=1.1pt,bottom=1.1pt, width=(\linewidth-9)/3, boxrule=2.4pt,]
\tcbitem[]
\etiquette{2.9cm}
\tcbitem[]
\etiquette{2.9cm}
\tcbitem[]
\etiquette{2.9cm}
\tcbitem[]
\etiquette{2.9cm}
\tcbitem[]
\etiquette{2.9cm}
\tcbitem[]
\etiquette{2.9cm}
\tcbitem[]
\etiquette{2.9cm}
\tcbitem[]
\etiquette{2.9cm}
\tcbitem[]
\etiquette{2.9cm}
\tcbitem[]
\etiquette{2.9cm}
\tcbitem[]
\etiquette{2.9cm}
\tcbitem[]
\etiquette{2.9cm}
\tcbitem[]
\etiquette{2.9cm}
\tcbitem[]
\etiquette{2.9cm}
\tcbitem[]
\etiquette{2.9cm}
\tcbitem[]
\etiquette{2.9cm}
\tcbitem[]
\etiquette{2.9cm}
\tcbitem[]
\etiquette{2.9cm}
\end{tcbitemize}
\end{document}

여기 연한 빨간색이 더 커졌으면 하는 부분입니다(그러나 라벨의 다른 쪽에서도 간격이 더 크다면 괜찮습니다).

미리 감사드립니다 !!!