Journal of Textile Research ›› 2020, Vol. 41 ›› Issue (08): 55-62.doi: 10.13475/j.fzxb.20190700608

• Dyeing and Finishing & Chemicals • Previous Articles     Next Articles

Influence of waterborne polyacrylate on printing effect of coated label fabrics

ZHU Qing1,2, XU Dandan1, PAN Yuange1, WANG Chenglong1,2, ZHENG Jinhuan1,3()   

  1. 1. Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Zhejiang Sci-Tech University, Hangzhou,Zhejiang 310018, China
    2. Zhejiang Key Laboratory of Clean Dyeing and Finishing Technology, Shaoxing,Zhejiang 312000, China
    3. Engineering Research Center for Eco-Dyeing and Finishing of Textiles,Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
  • Received:2019-07-01 Revised:2020-03-23 Online:2020-08-15 Published:2020-08-21
  • Contact: ZHENG Jinhuan E-mail:hzzjh1968@163.com

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Abstract:

In order to solve the problems of slow drying and low print resolution in coated label fabrics, this paper reported the influence of coating agents with different modified structures on the printing effect of coated label fabrics by testing the particle size of coating agent, rheological properties of coating slurry, weight loss rate, contact angle and printing resolution of coated label fabrics. The correlation between the coating surface structure and printing effect was established. The findings indicate that when the coated label fabrics have porosity higher than 0.509% for the pore areas ranging from 0.001 to 0.010 μm2, the printed pattern tends to show bad coverage, and the phenomenon is exacerbated with the increase of porosity. When the porosity ranging from 0.1 to 1 μm2 is higher than 2.656%, ink bleeding occurs. The micropore size is mostly distributed around 1 μm2 in the interval of 1-100 μm2. If the porosity in this interval is too high(more than 9%), there are more large pores on the surface of the coated label fabric, resulting in poor continuity of the printed patterns.

Key words: label fabric, waterborne polyacrylate, ink absorption and quick drying performance, print resolution, label printing

CLC Number: 

  • TS195.5

Fig.1

Particle size distribution curve of coating agent"

Tab.1

Particle size distribution data of coating agent"

涂层剂名称 平均粒径/nm 方差/nm2
改性纯丙乳液 95 0.247
改性苯丙乳液 95 0.247
自交联醋丙乳液 133 5.830
环氧改性自交联丙烯酸乳液 104 0.459

Fig.2

Effect of coating agent on rheological properties of polyacrylate coating slurry. (a) Shear force-shear rate curves of coating slurry; (b) Viscosity-shear rate curves of coating slurry"

Fig.3

SEM images of coated label fabrics made from different polyacrylate coating slurry(×2 000). (a) Uncoated finishes; (b) Pure acrylic; (c) Styrene-acrylic; (d)Vinegar-acrylic; (e) Epoxy modified acrylic"

Fig.4

Relationship between distance and profile gray value of coated label fabrics made of different polyacrylate coating slurry. (a) Pure acrylic; (b) Styrene-acrylic; (c)Vinegar-acrylic; (d) Epoxy modified acrylic"

Fig.5

Titration point of coated label fabric. (a) Pure acrylic; (b) Styrene-acrylic; (c)Vinegar-acrylic; (d) Epoxy modified acrylic"

Fig.6

Printed lines of coated label fabrics made from different polyacrylate coating clurry. (a) Pure acrylic; (b) Styrene-acrylic; (c)Vinegar-acrylic; (d) Epoxy modified acrylic"

Tab.2

Line width data for coated trademark fabrics ade from different polyacrylate coating clurry"

涂层浆原料 平均宽度/mm 方差/nm2
改性纯丙乳液 1.49 0.000 25
改性苯丙乳液 1.49 0.000 22
自交联醋丙乳液 1.45 0.000 42
环氧改性自交联丙烯酸乳液 1.43 0.000 31

Fig.7

Printed text image of coated label fabrics made from different polyacrylate coating slurry(×100). (a) Pure acrylic; (b) Styrene-acrylic; (c)Vinegar-acrylic; (d) Epoxy modified acrylic"

Tab.3

Pore distribution of coated label fabric made from different polyacrylate coating slurry"

涂层浆原料 0.001~0.010 μm2 0.01~0.10 μm2 0.1~1.0 μm2 1~100 μm2
孔数 平均孔面
积/μm2		 孔隙
率/%		 孔数 平均孔面
积/μm2		 孔隙
率/%		 孔数 平均孔面
积/μm2		 孔隙
率/%		 孔数 平均孔面
积/μm2		 孔隙
率/%
改性纯丙乳液 20 648 0.005 0.602 5 345 0.029 0.882 1 542 0.308 2.656 401 3.950 10.108
改性苯丙乳液 17 443 0.005 0.509 6 124 0.028 0.970 1 246 0.320 2.236 430 3.783 9.117
自交联醋丙乳液 21 041 0.005 0.615 5 825 0.029 0.960 1 782 0.328 3.280 515 4.666 13.500
环氧改性自交联
丙烯酸乳液		 30 347 0.005 0.889 7 255 0.026 1.042 1 650 0.335 3.101 531 4.398 13.100

Fig.8

Effect of coating agent on surface contact angle of lable fabric. (a) Pure acrylic;(b) Styrene-acrylic;(c)Vinegar-acrylic;(d) Epoxy modified acrylic"

Fig.9

Relationship curves between weight loss rate of waterborne ink and time"

Tab.4

Effect of coating agent on color fastness to rubbing of printed trademark fabrics 级"

涂层浆原料 耐干摩擦色牢度 耐湿摩擦色牢度
改性纯丙乳液 3 2~3
改性苯丙乳液 4 3~4
自交联醋丙乳液 3 2~3
环氧改性自交联丙烯酸乳液 2 2
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