人們認識新事物時，往往最先在意的是它的外觀，包裝的「視覺設計」是對於商品推廣非常重要的一部分。許多研究指出，食品包裝的視覺設計會造成觀看者的味覺印象，此種印象也就是所謂的視覺與味覺的「共感覺」。依據研究者觀察，枕形袋形式零食大約佔市售零食的50%，可以說是目前市場上非常常見的零食包裝種類。應依循何種規則做枕形袋零食的視覺設計，才能讓主打的零食口味與包裝設計在消費者心中成功聯結，是本研究主要探討的問題。本研究將針對台灣市面上五種主要口味（辣味、起司口味、海苔口味、鹽味、烤肉味）之枕形袋零食包裝視覺設計進行探討，觀察與分析包裝上色彩、圖形、構成，整理出各口味枕形袋之設計特徵；以問卷調查消費者對於枕形袋包裝各方面之重視程度以及對於各味覺之聯想情感與色彩，並探討不同樣本之色彩意象與味覺的共感覺。
　　研究結果發現：
1.目前市面上枕形袋包裝之色彩意象可分為六大類：「熱鬧休閒類」、「動感野性類」、「涼爽休閒類」、「華麗豪華類」、「自然優雅類」、「合理現代類」，其中，有半數之包裝分布於「熱鬧休閒類」（Warn，Soft）及「動感野性類」（Warn，Hard）。
2.枕形袋包裝設計重點為「均衡」及「秩序」。建議在設計枕形袋包裝時，將枕形袋之基本圖像（口味實體圖像、內容物圖像及原料圖像），加入一些該味覺代表之元素，進行排版，更能與味覺產生共感。
3.本研究發現，研究的幾種口味皆可與特定之色系、色彩意象及情感產生共感，其中，鹽味之色彩共感較為薄弱；每種口味皆有對應之情感視覺元素。
4.市面上海苔口味跟鹽味枕形袋包裝較無特定風格之元素，因此，建議可使用該口味之情感視覺元素進行此兩種口味之包裝設計。
5.市面上之辣味、海苔口味枕形袋包裝普遍能成功與其味覺產生共感覺。
6.「合理現代類」（Cool，Hard）之色彩意象不適合聯想各種口味。

When people recognize new things, they often care about their appearance first. The "visual design" of packaging is a very important part of commodity promotion. Many studies have pointed out that the visual design of food packaging can cause the taste impression of the viewer, which is the so-called "Synesthesia" for vision and taste. According to the researcher's observation, laminated aluminum toil bag snack accounts for about 50% of the snacks on the market. It can be said that it is a very common kind of snack packaging on the market at present. What kind of rules should be followed to make the visual design of laminated aluminum toil bags, so that the main snack taste and packaging design can be successfully connected in the hearts of consumers, is the main problem of this study. This study will focus on the visual design of laminated aluminum toil bags with five main flavors (spicy, cheese, seaweed, salt and barbecue) in Taiwan market, observe and analyze the color, graphics and typesetting of the packaging, and sort out the design features of laminated aluminum toil bags with different flavors; A questionnaire was used to investigate consumers' attention to various aspects of laminated aluminum toil bag packaging, and their associative emotion and associative color for each taste, and to explore the synesthesia for color image and taste.
The results show that:
1.At present, the color image of laminated aluminum toil bag packaging on the market can be divided into six categories: "lively leisure", "dynamic wild", "cool leisure", "gorgeous luxury", "natural elegance" and "reasonable modern". Among them, more than half of the packagings are distributed in "lively leisure"(warm, soft) and "dynamic wild"(warm, hard).
2.Laminated aluminum toil bag packaging design focuses on "balance" and "order". It is suggested that the basic image (taste image, content image and raw material image) should be combined with some visual elements representing the taste in the design of laminated aluminum toil bag packaging, so as to have more synesthesia with taste.
3.This study found that all the five flavors can have synesthesia with specific color, color image and emotion, among which salt flavor has weak synesthesia for color; Each taste has its own emotional visual elements.
4.Seaweed flavor and salt flavor laminated aluminum toil bag packaging have no specific style elements. Therefore, it is suggested that the emotional visual elements of the taste can be used in the packaging design of the two flavors.
5.Laminated aluminum toil bag packaging of spicy taste and seaweed taste on the market can successfully have synesthesia with its taste.
6.The color image of "reasonable modern"(cool, hard) is not suitable for associating various tastes.