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CN-122013530-A - Knitting bag processing method and knitting bag thereof

CN122013530ACN 122013530 ACN122013530 ACN 122013530ACN-122013530-A

Abstract

The invention belongs to the technical field of knitting bags, and particularly relates to a knitting bag processing method and a knitting bag thereof, comprising the following steps that S1, a first knitting material and a second knitting material for knitting bags are selected, the first knitting material is immersed in a first functional treatment liquid, and the second knitting material is immersed in a second functional treatment liquid; and S3, using the dried first knitted material for knitting a bottom area of the knitted bag, and using the dried second knitted material for knitting a side area of the knitted bag, and integrally forming to obtain the knitted bag body with the partition functional characteristic. According to the difference of the using requirements of different parts of the knitting bag, the two functional treatment liquids are respectively adopted to carry out differential treatment on the bottom and the side surface materials, so that the integrated functional partition of the bottom reinforced wear-resisting and side surface weight protection is realized. The design ensures the whole light ventilation and simultaneously improves the durability and the easy nursing property of each area in a targeted way.

Inventors

  • DENG CHANGFU

Assignees

  • 东莞市永沣织带有限公司

Dates

Publication Date
20260512
Application Date
20260107

Claims (10)

  1. 1. The knitting bag processing method is characterized by comprising the following steps of: s1, selecting a first knitting material and a second knitting material for knitting bags, immersing the first knitting material in a first functional treatment liquid, and immersing the second knitting material in a second functional treatment liquid; s2, drying the impregnated first knitted material and the impregnated second knitted material; And S3, using the dried first knitted material for knitting a bottom area of the knitted bag, using the dried second knitted material for knitting a side area of the knitted bag, and integrally forming by using a flat knitting machine to obtain a knitted bag body with a partition functional characteristic, wherein the first functional treatment liquid comprises, by mass, 25-35% of an aqueous polyurethane dispersion, 3-8% of nano silicon dioxide, 0.5-2% of a cross-linking agent, 5-10% of a protective component, 0.1-0.5% of a nonionic surfactant, 0.2-1% of a thickening agent and the balance deionized water, and the second functional treatment liquid comprises, by mass, 15-25% of an organosilicon modified acrylic emulsion, 10-20% of a fluorine-free three-protection finishing agent, 2-5% of an organosilicon elastomer, 1-3% of an amino silicone oil emulsion, 0.1-0.5% of a nonionic surfactant, 0.1-0.8% of a catalyst and the balance deionized water.
  2. 2. The method of claim 1, wherein the protective component comprises one or a mixture of several of a fluoropolymer, a silicone water repellent, a waxy emulsion, and an environmentally friendly fluorine-free water repellent.
  3. 3. The method of claim 1, wherein the first knitted material and the second knitted material are yarns, a preliminary knit formed flat or tubular webbing.
  4. 4. The method according to claim 1, wherein in step S3, the side surface area of the knitted bag is provided with a dynamic pattern unit, the dynamic pattern unit is knitted from an environmental response yarn, and the environmental response yarn is a temperature-variable yarn or a light-variable yarn.
  5. 5. The method of knitting a knitted fabric according to claim 1, wherein the crosslinking agent is an aziridine-based or carbodiimide-based crosslinking agent.
  6. 6. The method of knitting a knitted fabric according to claim 1, characterized in that the catalyst is an organotin or amine catalyst.
  7. 7. The method of claim 1, wherein the silicone elastomer is a crosslinkable silicone polymer that undergoes a condensation reaction to form an elastomeric silicone rubber film under the action of the catalyst.
  8. 8. The method of knitting a bag according to claim 1, wherein the method of preparing the first functional treatment liquid comprises the steps of: S11, premixing nano silicon dioxide, a part of nonionic surfactant and a small amount of deionized water, and pre-dispersing for 10-15 minutes by a high-shear dispersing machine at the rotating speed of 2000-3000 rpm to form uniform nano silicon dioxide pre-dispersion slurry; S12, adding deionized water with about half of the formula amount into a main reaction kettle, starting medium-low speed stirring, slowly adding the aqueous polyurethane dispersion, stirring for 10-15 minutes to be uniform, slowly adding the nano silicon dioxide pre-dispersion slurry into the main reaction kettle under stirring, increasing the rotating speed to 1200-1500 rpm, continuously dispersing for 25-35 minutes until the system is uniform and the gloss is uniform, then regulating the rotating speed to 600-800 rpm, slowly adding the protective component, and continuously stirring for 15-20 minutes to ensure complete uniform mixing; S13, reducing the stirring speed to 300-500 rpm, slowly adding the cross-linking agent in a fine flow or dropwise manner under good stirring, continuously stirring for 20-30 minutes, pre-diluting the thickening agent with deionized water, slowly adding the thickening agent into the system under low-speed stirring, and finally regulating the stirring speed to 200-300 rpm, and curing for 30 minutes to obtain the first functional treatment liquid.
  9. 9. The method for producing a knitted bag according to claim 1, wherein the method for producing the second functional treatment liquid comprises the steps of: s21, mixing the organosilicon elastomer, part of nonionic surfactant and a small amount of deionized water, and pre-emulsifying for 5-10 minutes by a high-shear emulsifying machine at the rotating speed of 2000-3000 rpm to form uniform organosilicon elastomer pre-emulsion with good fluidity; s22, uniformly stirring and mixing the fluorine-free three-proofing finishing agent and the amino silicone oil emulsion in another container to obtain a premix; S23, adding deionized water with the formula amount of about two thirds into a main reaction kettle, stirring at the speed of 300-500 rpm, slowly adding the organosilicon modified acrylic emulsion, stirring for 10-15 minutes, slowly dropwise adding the organosilicon elastomer pre-emulsion into the main reaction kettle under continuous stirring, and after the dropwise adding is finished, increasing the rotating speed to 800-1000 rpm, continuously dispersing for 15-20 minutes, and fully mixing and stabilizing; s24, regulating the stirring speed back to 600-800 rpm, slowly and uniformly adding the premix in the step 2 into the system, and continuing stirring for 20-25 minutes after the addition is finished to enable the premix to be completely fused; S25, reducing the stirring speed to 300-400 rpm, sufficiently diluting the catalyst with deionized water, slowly adding the catalyst into the system in a dropwise or trickle mode, continuously stirring for 15-20 minutes after the catalyst is added, completely fusing the catalyst, and finally, adjusting the stirring speed to 150-250 rpm, and curing for 30 minutes to obtain the second functional treatment liquid.
  10. 10. A knitted bag, characterized by being processed by the knitted bag processing method according to any one of claims 1 to 9.

Description

Knitting bag processing method and knitting bag thereof Technical Field The invention belongs to the technical field of knitting bags, and particularly relates to a knitting bag processing method and a knitting bag thereof. Background The knitted bag is used as a fashion and leisure article and is deeply favored by consumers due to unique textures, good air permeability and rich design feel. However, the traditional knitting materials (such as cotton yarn, polyester yarn, blended yarn and the like) have two general inherent defects, namely 1, the mechanical property is limited, particularly the abrasion resistance and the tear resistance are insufficient, and 2, the knitting materials are hydrophilic and easy to absorb stains. These drawbacks severely limit the durability and practicality of the knitted bag in everyday life and outdoor settings. Disclosure of Invention The invention aims to provide a knitting bag processing method and a knitting bag thereof, and aims to solve the problems of insufficient wear resistance and tear resistance, self hydrophilicity and easiness in stain adsorption of the knitting bag in the prior art. In order to achieve the above purpose, the invention provides a knitting bag processing method, which comprises the following steps: s1, selecting a first knitting material and a second knitting material for knitting bags, immersing the first knitting material in a first functional treatment liquid, and immersing the second knitting material in a second functional treatment liquid; s2, drying the impregnated first knitted material and the impregnated second knitted material; S3, using the dried first knitted material for knitting a bottom area of the knitted bag, using the dried second knitted material for knitting a side area of the knitted bag, and integrally forming by using a flat knitting machine to obtain a knitted bag body with a partition functional characteristic; The first functional treatment fluid comprises, by mass, 25-35% of a water-based polyurethane dispersion, 3-8% of nano silicon dioxide, 0.5-2% of a cross-linking agent, 5-10% of a protective component, 0.1-0.5% of a nonionic surfactant, 0.2-1% of a thickener, and 1191% of a treatment fluid, wherein the water-based polyurethane dispersion provides excellent toughness, wear resistance and adhesive force, the core of an enhanced function, the hardness, wear resistance and mechanical strength of a coating are greatly improved, the cross-linking agent promotes cross-linking among resin molecules to form a three-dimensional network structure, the water resistance and durability of the coating are improved, the protective component provides basic waterproof performance while providing the enhanced function, the functional compounding is realized, the surface tension of the treatment fluid is reduced, the surface tension of the treatment fluid is fully permeated into fibers, the thickener is 0.2-1% of the treatment fluid, the viscosity of the treatment fluid is adjusted, the sufficient solid is ensured to be carried during impregnation, and the thickener is a polyurethane association type thickener, specifically basf Rheovis PU1191, and the balance deionized water. The second functional treatment fluid comprises, by mass, 15-25% of an organosilicon modified acrylic emulsion, a soft and elastic membrane, 10-20% of a fluorine-free three-proofing finishing agent, a durable and excellent water-repellent, oil-repellent and soil-repellent (soil-release) performance, environmental protection and safety, wherein the fluorine-free three-proofing finishing agent is a Dajin XF-5003 type finishing agent, 2-5% of an organosilicon elastomer, further improves the flexibility and rebound resilience of a coating, adapts to frequent bending of a knitted fabric, 1-3% of an amino silicone emulsion, gives smooth and plump excellent hand feeling to fibers, counteracts possible stiffness caused by resin, 0.1-0.5% of a nonionic surfactant, promotes uniform permeation and spreading of the treatment fluid, 0.1-0.8% of a catalyst, promotes crosslinking and solidification of organosilicon components, and improves durability, and the balance of deionized water. In the step S4, a zipper or buttons are sewed at the opening of the knitted bag body, and a brace is installed. Optionally, the protective component comprises one or a mixture of a plurality of fluorine-containing polymer, organic silicon water repellent, wax emulsion and environment-friendly fluorine-free waterproof agent. Optionally, the first knitted material and the second knitted material are yarns, and a flat or tubular webbing formed by preliminary knitting. The yarns may be cotton yarns, polyester yarns, nylon yarns, blended yarns (e.g., cotton/polyester, cotton/spandex core-spun yarns), regenerated fiber yarns, and the like. These are the base materials mentioned in the background art which need to be functionally improved. The yarn is changed into a flat or tubular braid, and the kn