CN111440559A

CN111440559A - Sealing batten adhesive tape for clothes and preparation method and application thereof

Info

Publication number: CN111440559A
Application number: CN202010304314.6A
Authority: CN
Inventors: 韩晓航; 郑亚; 王磊; 杨溢; 吴小平
Original assignee: Suzhou Cybrid Application Technology Co ltd
Current assignee: Suzhou Cybrid Application Technology Co ltd
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2020-07-24

Abstract

The invention discloses a sealing batten adhesive tape for clothes and a preparation method and application thereof. The sealing layering adhesive tape for clothes comprises a hot melt adhesive layer and a base material layer, wherein the hot melt adhesive layer comprises the following components in parts by weight: 40-70 parts of main resin, 20-50 parts of tackifying resin, 5-15 parts of viscosity regulator, 0-1 part of lubricant, 0.1-0.5 part of antioxidant and 0.1-0.5 part of light stabilizer; the main resin is any one or a mixture of at least two of EVA, polyurethane, polyolefin elastomer, SBS, SIS and PVB. The sealing batten adhesive tape for the clothes, which is prepared by the invention, has good bonding effect when being used for bonding seams, can effectively seal and prevent water, has no special requirements on the types of fabrics to be bonded at the seams, is suitable for various base material fabrics, has no damage on the base material fabrics, and can be used for processing disposable medical protective clothing, chemical protective clothing or outdoor jacket.

Description

Sealing batten adhesive tape for clothes and preparation method and application thereof

Technical Field

The invention belongs to the field of adhesive tapes, and particularly relates to a sealing batten adhesive tape for clothes, and a preparation method and application thereof.

Background

Textile, non-woven fabrics and derived materials need to have seams in the process of preparing corresponding finished clothing products, the fabrics have high requirements on barrier liquid in medical operation clothes, isolation clothes, industrial protective clothing, household raincoats and the like, and in order to achieve good waterproof effect, besides the measure of adding a coating on the surface of the fabrics, seams need to be strengthened or sealing technology is adopted, and good waterproof sealing effect can be achieved.

The seam of three-layer structure material (nonwoven/barrier film/nonwoven) mentioned in US7390376 is formed by heating the seam of the laminate of two sheets of material to a temperature above the melting point of the inner nonwoven layer, but below the melting point of the barrier film, to melt the inner nonwoven, so that the inner nonwoven of the two sheets of material is fused and bonded together to form a seam with barrier properties. This patent is adjustment of non-woven fabrics inner structure, needs to unify the improvement to all surface fabrics.

CN100379552C discloses a seam, forming a waterproof seam for clothing between two pieces of fabric, at least one of which is a laminate. The laminate comprises: a first layer comprising a water resistant water vapor permeable layer and a second woven or knitted layer laminated to the first layer. The second layer comprises a first component and a second component, the first component being stable at a first temperature and the second component melting at a second temperature lower than the first temperature. The seam further comprises a thermoplastic seam seal tape in contact with the second layer of the at least one laminate and sealing the seam. The seam sealing tape is applied over the seam at an elevated temperature and pressure to melt the thermoplastic seam sealing tape and the second component of the knit or woven layer and form a water-resistant seam. This patent is a textile seam patent which mentions thermoplastic seam sealing tapes, a tape solution with a substrate where there is a limit to the kind of the object to be attached, while loose non-woven fabrics cannot be bonded.

CN101210082B discloses a composition for forming hot melt adhesive, which contains main resin, tackifier, viscosity modifier and filler, and also contains one or more of butyl rubber and its derivatives. The invention adds one or more of butyl rubber and derivatives thereof into the composition for forming the hot melt adhesive, thereby greatly enhancing the bonding strength of the hot melt adhesive, and the hot melt adhesive provided by the invention has excellent bonding strength on various substrates, but the effect is not good when the hot melt adhesive is applied to bonding fluffy non-woven fabrics.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide a sealing batten adhesive tape for clothes, a preparation method and application thereof, which have good bonding effect and can effectively seal and prevent water when being used for bonding seams.

One of the purposes of the invention is to provide a sealing batten adhesive tape for clothes, and the invention adopts the following technical scheme for achieving the purpose:

the utility model provides a clothing is with sealing layering sticky tape, includes hot melt adhesive layer and substrate layer, by weight, hot melt adhesive layer contains following component:

the main resin is any one or a mixture of at least two of EVA, polyurethane, polyolefin elastomer, SBS, SIS and PVB.

According to the invention, by adjusting the proportion of various raw materials, particularly the selection of the main resin, and matching with tackifying resin, viscosity regulator, lubricant, antioxidant and light stabilizer for use, the prepared sealing pressing strip adhesive tape for clothes has good bonding effect when being used for bonding seams, can effectively seal and prevent water, has no special requirements on the types of fabrics to be bonded at the seams, is suitable for various base fabrics, and has no damage to the base fabrics.

Specifically, the hot melt adhesive layer comprises the following components in parts by weight:

40 to 70 parts of a main resin, for example, 40 parts, 41 parts, 42 parts, 43 parts, 44 parts, 45 parts, 46 parts, 47 parts, 48 parts, 49 parts, 50 parts, 51 parts, 52 parts, 53 parts, 54 parts, 55 parts, 56 parts, 57 parts, 58 parts, 59 parts, 60 parts, 61 parts, 62 parts, 63 parts, 64 parts, 65 parts, 66 parts, 67 parts, 68 parts, 69 parts, 70 parts and the like by weight of the main resin.

20-50 parts of tackifying resin, for example, the parts by weight of tackifying resin are 20 parts, 21 parts, 22 parts, 23 parts, 24 parts, 25 parts, 26 parts, 27 parts, 28 parts, 29 parts, 30 parts, 31 parts, 32 parts, 33 parts, 34 parts, 35 parts, 36 parts, 37 parts, 38 parts, 39 parts, 40 parts, 41 parts, 42 parts, 43 parts, 44 parts, 45 parts, 46 parts, 47 parts, 48 parts, 49 parts, 50 parts and the like.

5-15 parts of viscosity regulator, for example, 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, 11 parts, 12 parts, 13 parts, 14 parts, 15 parts, etc. of the viscosity regulator.

0 to 1 part of lubricant, for example, 0 part, 0.1 part, 0.2 part, 0.3 part, 0.4 part, 0.5 part, 0.6 part, 0.7 part, 0.8 part, 0.9 part, 1 part, etc. by weight of the lubricant.

0.1-0.5 part of antioxidant, for example, 0.1 part, 0.2 part, 0.3 part, 0.4 part, 0.5 part and the like in parts by weight of the antioxidant.

0.1 to 0.5 part of light stabilizer, for example, 0.1 part, 0.2 part, 0.3 part, 0.4 part, 0.5 part, etc. by weight.

The main resin selected by the sealing batten adhesive tape for the clothes needs to have a lower melting point and higher fluidity so as to ensure that the surface of an attached object can be quickly soaked at a lower temperature, so that higher adhesiveness is achieved. The main resin is any one or a mixture of at least two of EVA, polyolefin elastomer, polyurethane, SBS, SIS and PVB. Typical but not limiting combinations of said mixtures are mixtures of EVA, polyolefin elastomer, mixtures of EVA, polyurethane, mixtures of EVA, SBS, mixtures of EVA, SIS, mixtures of EVA, PVB, mixtures of EVA, polyolefin elastomer, mixtures of polyurethane, mixtures of EVA, polyolefin elastomer, PVB, mixtures of polyolefin elastomer, polyurethane, mixtures of SBS, mixtures of polyurethane, SBS, SIS, mixtures of EVA, polyolefin elastomer, polyurethane, mixtures of SBS, mixtures of polyolefin elastomer, polyurethane, SBS, SIS, mixtures of EVA, polyolefin elastomer, polyurethane, SBS, SIS and PVB, mixtures of EVA, polyolefin elastomer, polyurethane, SBS, SIS and PVB, mixtures of EVA, SBS, SIS and PVB, and the like. Since the text only exemplifies the above examples, the mixture is not limited to the listed combinations, and may be other combinations of the above main resins, which are not listed herein.

Preferably, the EVA has a VA content of 28-40%, such as 28%, 29%, 30%, 31%, 32%, 33%, 34%, 35%, 36%, 37%, 38%, 39%, 40%, etc., and a melt index of 100-400 g/10min, such as 110g/10min, 120g/10min, 130g/10min, 140g/10min, 150g/10min, 160g/10min, 170g/10min, 180g/10min, 190g/10min, 200g/10min, 210g/10min, 220g/10min, 230g/10min, 240g/10min, 250g/10min, 260g/10min, 270g/10min, 280g/10min, 290g/10min, 300g/10min, 310g/10min, 320g/10min, 100g/10min, 30g/10min, etc, 330g/10min, 340g/10min, 350g/10min, 360g/10min, 370g/10min, 380g/10min, 390g/10min, 400g/10min and the like; 2.3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 25, 30, 35, 40, 45, 50, etc.; the melting point is 40 to 70 ℃, for example, the melting point is 40 ℃, 41 ℃, 42 ℃, 43 ℃, 44 ℃, 45 ℃, 46 ℃, 47 ℃, 48 ℃, 49 ℃, 50 ℃, 51 ℃, 52 ℃, 53 ℃, 54 ℃, 55 ℃, 56 ℃, 57 ℃, 58 ℃, 59 ℃, 60 ℃, 61 ℃, 62 ℃, 63 ℃, 64 ℃, 65 ℃, 66 ℃, 67 ℃, 68 ℃, 69 ℃, 70 ℃ and the like. The VA content is selected according to the requirements of cost and performance, the VA content of the conventional EVA resin on the market is generally 28-33%, if the VA content is too low, the melting point is higher, and if the VA content is too high, the price is too high; the limitation of the fused finger and the melting point is to ensure the adhesive force, shorten the pressing time as much as possible and reduce the pressing temperature, so that the fused finger range is too high, the adhesive force is not enough due to insufficient cohesive force, and the range is too low, and longer pressing time and higher pressing temperature are needed; the melting point is selected on the one hand in consideration of the pressing temperature and on the other hand, the shape of the product is kept and the stability of the bonding is ensured in the use temperature range after bonding (room temperature +/-10 ℃), so that the melting point cannot be too low. Preferably, the polyurethane has a melt index of 10-100 g/10min, such as 10g/10min, 11g/10min, 12g/10min, 13g/10min, 14g/10min, 15g/10min, 16g/10min, 17g/10min, 18g/10min, 19g/10min, 20g/10min, 21g/10min, 22g/10min, 23g/10min, 24g/10min, 25g/10min, 26g/10min, 27g/10min, 28g/10min, 29g/10min, 30g/10min, 31g/10min, 32g/10min, 33g/10min, 34g/10min, 35g/10min, 36g/10min, 37g/10min, 38g/10min, 39g/10min, 40g/10min, 41g/10min, 42g/10min, 43g/10min, 44g/10min, 45g/10min, 46g/10min, 47g/10min, 48g/10min, 49g/10min, 50g/10min, 55g/10min, 60g/10min, 65g/10min, 70g/10min, 75g/10min, 80g/10min, 85g/10min, 90g/10min, 95g/10min, 100g/10min and the like; the softening point is 50 to 80 ℃, for example, the softening point is 50 ℃, 55 ℃, 60 ℃, 65 ℃, 70 ℃, 75 ℃, 80 ℃ and the like.

The tackifying resin is any one or a mixture of at least two of C5 resin, C9 resin, rosin glyceride and pentaerythritol ester. Typical but non-limiting combinations of such mixtures are C5 resins, mixtures of C9 resins, C5 resins, mixtures of rosin glycerol esters, mixtures of C5 resins, pentaerythritol esters, mixtures of C9 resins, rosin glycerol esters, mixtures of rosin glycerol esters and pentaerythritol esters, C5 resins, C9 resins, mixtures of rosin glycerol esters, C9 resins, mixtures of rosin glycerol esters and pentaerythritol esters, C5 resins, C9 resins, mixtures of rosin glycerol esters and pentaerythritol esters, and the like. The tackifying resin of the type is matched with the main resin for use, the initial bonding force of the main resin used alone is low, the main resin is not easy to fix on the surface of an object to be pasted, and meanwhile, the wettability is relatively poor; the addition of the tackifying resin improves the above determination on the one hand and can further improve the adhesive strength of the adhesive and the adherend.

Preferably, the softening point of the tackifying resin is 60 to 100 ℃, for example, the softening point of the tackifying resin is 60 ℃, 70 ℃, 80 ℃, 90 ℃, 100 ℃ or the like. The viscosity regulator is any one or a mixture of at least two of polyethylene wax, polypropylene wax, saso wax, Fischer-Tropsch wax, microcrystalline wax, polybutadiene and polyisobutylene. Typical but not limiting combinations of said mixtures are polyethylene wax, mixtures of polypropylene waxes, saso wax, fischer-tropsch wax, mixtures of microcrystalline waxes, mixtures of polybutadiene and polyisobutylene, polyethylene wax, polypropylene wax, mixtures of saso wax, polypropylene wax, mixtures of fischer-tropsch wax, mixtures of polybutadiene, mixtures of microcrystalline wax, polybutadiene and polyisobutylene, saso wax, fischer-tropsch wax, mixtures of microcrystalline waxes, polybutadiene, polyethylene wax, polypropylene wax, saso wax, mixtures of fischer-tropsch wax, polypropylene wax, saso wax, mixtures of fischer-tropsch wax, mixtures of microcrystalline wax, saso wax, fischer-tropsch wax, microcrystalline wax, mixtures of saso wax, microcrystalline wax, polybutadiene and polyisobutylene, polyethylene wax, polypropylene wax, mixtures of polypropylene waxes, saso wax, mixtures of paraffin wax, mixtures of saso wax, microcrystalline, Polypropylene wax, saso wax, fischer-tropsch wax, microcrystalline wax, mixtures of polybutadiene, polypropylene wax, saso wax, fischer-tropsch wax, microcrystalline wax, mixtures of polybutadiene and polyisobutylene, polyethylene wax, polypropylene wax, saso wax, fischer-tropsch wax, microcrystalline wax, mixtures of polybutadiene and polyisobutylene, and the like.

The lubricant is added to improve the mobility of a rubber molecular chain to achieve a better bonding effect, and is added to reduce the bonding of the components in the rubber molecular chain and the surface of processing equipment so as to prevent the accumulation or residue in the equipment in the production process; if not, the surface of the processing equipment needs to be processed with higher precision, and the cost is higher. Preferably, the lubricant is calcium stearate and/or zinc stearate.

The antioxidant is any one or a mixture of at least two of phenol antioxidant, phosphite antioxidant and hindered amine antioxidant; typical but non-limiting combinations of the mixture are a mixture of phenolic antioxidants and phosphite antioxidants, a mixture of phenolic antioxidants and hindered amine antioxidants, a mixture of phosphite antioxidants and hindered amine antioxidants, and a mixture of phenolic antioxidants, phosphite antioxidants and hindered amine antioxidants.

Preferably, the light stabilizer is any one of bis (2,2,6, 6-tetramethyl-4-piperidyl) sebacate, polysuccinic acid (4-hydroxy-2, 2,6, 6-tetramethyl-1-piperidylethanol) ester and poly- { [6- [ (1,1,3, 3-tetramethylbutyl) -imino ] -1,3, 5-triazine-2, 4-diyl ] [2- (2,2,6, 6-tetramethylpiperidyl) -azo ] -hexamethylene- [4- (2,2,6, 6-tetramethylpiperidyl) -amino ] } or a mixture of at least two thereof. Typical but non-limiting combinations of such mixtures are a mixture of bis (2,2,6, 6-tetramethyl-4-piperidyl) sebacate, polysuccinic acid (4-hydroxy-2, 2,6, 6-tetramethyl-1-piperidylethanol) ester and a mixture of poly- { [6- [ (1,1,3, 3-tetramethylbutyl) -imino ] -1,3, 5-triazine-2, 4-diyl ] [2- (2,2,6, 6-tetramethylpiperidyl) -aza ] -hexylene- [4- (2,2,6, 6-tetramethylpiperidyl) -amino ] }, bis (2,2,6, 6-tetramethyl-4-piperidyl) sebacate, a mixture of poly- { [6- [ (1,1,3, 3-tetramethylbutyl) -imino ] -1,3, 5-triazine-2, 4-diyl ] [2- (2,2,6, 6-tetramethylpiperidyl) -azenyl ] -hexylene- [4- (2,2,6, 6-tetramethylpiperidyl) -amino ] }, bis (2,2,6, 6-tetramethyl-4-piperidyl) sebacate, polysuccinic acid (4-hydroxy-2, 2,6, 6-tetramethyl-1-piperidylethanol) ester and poly- { [6- [ (1,1,3, 3-tetramethylbutyl) -imino ] -1, a mixture of 3, 5-triazine-2, 4-diyl ] [2- (2,2,6, 6-tetramethylpiperidinyl) -azenyl ] -hexylene- [4- (2,2,6, 6-tetramethylpiperidinyl) -amino ] }.

Preferably, the thickness of the hot melt adhesive layer is 20-100 μm, for example, the thickness of the hot melt adhesive layer is 20 μm, 30 μm, 40 μm, 50 μm, 60 μm, 70 μm, 80 μm, 90 μm, 100 μm, and the like.

Preferably, the substrate layer is a non-woven fabric layer or a polyester fabric layer;

preferably, the substrate layer is subjected to a hydrophobic treatment. The terylene cloth is coated with the hydrophobic agent or soaked with the hydrophobic agent, and a hydrophobic coating is added on the terylene cloth. The terylene cloth can not absorb water any more, the surface is not easy to be adhered with liquid stains, and the binding force between the terylene cloth and the glue is increased.

The second purpose of the invention is to provide a preparation method of the sealing pressing strip adhesive tape for clothes, which comprises the following steps: uniformly mixing the main resin, the tackifying resin, the viscosity regulator, the lubricant, the antioxidant and the light stabilizer according to the proportion, adding the mixture into a casting machine for casting to form a film, spraying the film on a substrate layer, and rolling after hot pressing to obtain the sealing batten adhesive tape for clothing.

The temperature of the casting film forming is 40-100 ℃, for example, the temperature of the casting film forming is 40 ℃, 50 ℃, 60 ℃, 70 ℃, 80 ℃, 90 ℃, 100 ℃ and the like.

The invention also aims to provide the application of the sealing batten adhesive tape for the clothes, which is used for processing disposable medical protective clothing, chemical protective clothing or outdoor jacket.

The sealing batten adhesive tape for the clothes is applied to seams of the clothes, plays a role in waterproof sealing, and is mainly used for occasions needing to prevent liquid from permeating.

Compared with the prior art, the invention has the beneficial effects that:

the sealing pressing strip adhesive tape for clothes, which is prepared by the invention, has good bonding effect when being used for bonding seams, can effectively seal and prevent water, has no special requirements on the types of fabrics to be bonded at the seams, is suitable for various base material fabrics, and has no damage to the base material fabrics. Wherein, the stripping force with the terylene cloth is more than 9N, and the hydrostatic pressure is more than 2.8 KPa; the peeling force of the PE coating non-woven fabric is more than 6N, and the hydrostatic pressure is more than 2.4 KPa; the stripping force of the PU coating non-woven fabric is more than 6N, and the hydrostatic pressure is more than 2.3 KPa.

Drawings

FIG. 1 is a schematic structural view of a preferred embodiment of the sealing bead tape for clothing according to the present invention;

the reference numbers are as follows:

1-a substrate layer; 2-hot melt adhesive layer.

Detailed Description

The technical solution of the present invention is further described by the following specific embodiments with reference to fig. 1.

As shown in fig. 1, the sealing bead tape for clothing of the present invention includes a substrate layer 1 and a hot melt adhesive layer 2 connected to each other.

Unless otherwise specified, various starting materials of the present invention are commercially available or prepared according to conventional methods in the art.

Example 1

The sealing pressing strip adhesive tape for clothes comprises a hot melt adhesive layer and a base material layer, wherein the hot melt adhesive layer comprises the following components in parts by weight:

wherein the main resin is EVA, the VA content is 28%, the melt index is 150g/10min, and the melting point is 68 ℃; the tackifying resin is pentaerythritol ester, and the softening point is 90 ℃; the viscosity regulator is polyethylene wax; the lubricant is zinc stearate; the antioxidant is hydroquinone antioxidant, and the light stabilizer is bis (2,2,6, 6-tetramethyl-4-piperidyl) sebacate; the thickness of the hot melt adhesive layer of the sealing pressing strip adhesive tape for clothes is 20 mu m.

The preparation method of the sealing batten adhesive tape for clothes in the embodiment is as follows: uniformly mixing the main resin, the tackifying resin, the viscosity regulator, the lubricant, the antioxidant and the light stabilizer according to the proportion, adding the mixture into a casting machine for casting to form a film, spraying the film on a substrate layer, and rolling after hot pressing to obtain the sealing pressing strip adhesive tape for clothing.

Wherein the lamination conditions of the hot pressing are as follows: the temperature is 300 ℃, the speed is 10m/min and the pressure is 0.5 kg.

Example 2

Example 3

wherein the main resin is polyurethane, the melt index is 35g/10min, and the softening point is 70 ℃; the tackifying resin is pentaerythritol ester, and the softening point is 90 ℃; the viscosity regulator is polyethylene wax; the lubricant is zinc stearate; the antioxidant is hydroquinone antioxidant, and the light stabilizer is bis (2,2,6, 6-tetramethyl-4-piperidyl) sebacate; the thickness of the hot melt adhesive layer of the sealing pressing strip adhesive tape for clothes is 20 mu m.

Example 4

The sealing pressing strip adhesive tape for the clothes comprises a hot melt adhesive layer, and the hot melt adhesive layer comprises the following components in parts by weight:

wherein the main resin is EVA, the VA content is 28%, the melt index is 150g/10min, and the melting point is 68 ℃; the tackifying resin is pentaerythritol ester, and the softening point is 90 ℃; the viscosity regulator is polyethylene wax; the lubricant is zinc stearate; the antioxidant is hydroquinone antioxidant, and the light stabilizer is poly (4-hydroxy-2, 2,6, 6-tetramethyl-1-piperidineethanol) succinate; the thickness of the hot melt adhesive layer of the sealing pressing strip adhesive tape for clothes is 20 mu m.

Example 5

This example is different from example 1 in that the main resin is EVA, the VA content is 40%, the melt index is 300g/10min, the melting point is 60 ℃, and the others are the same as example 1.

Example 6

This example differs from example 3 in that the polyurethane has a melt index of 50g/10min and a softening point of 70 ℃ and is otherwise the same as example 3.

Example 7

This example differs from example 1 in that the EVA has a VA content of 19% and a melt index

150g/10min, melting point 68 ℃ and others are the same as in example 1.

Example 8

This example differs from example 1 in that the EVA has a VA content of 40% and a melt index

150g/10min, melting point 45 ℃ and others identical to those of example 1.

Example 9

This example differs from example 3 in that the polyurethane has a melt index of 15g/10min and a softening point of 80 ℃ and is otherwise the same as example 3.

Example 10

This example is different from example 3 in that the polyurethane has a melt index of 45g/10min and a softening point of 60 ℃ and the other examples are the same as example 3.

Comparative example 1

This comparative example differs from example 1 in that the weight parts of the main resin are 15 parts, and the weight parts of the tackifier resin are 60 parts, and the others are the same as those in example 1.

Comparative example 2

This comparative example differs from example 1 in that 80 parts by weight of the main resin and 10 parts by weight of the tackifier resin are the same as those of example 1.

Comparative example 3

This comparative example differs from example 1 in that the main resin is polyethylene, and the others are the same as those of example 1.

The sealing and compression tape for clothes, prepared in examples 1 to 10 and comparative examples 1 to 3, was used for sealing of polyester fabric, PE-coated nonwoven fabric, PU-coated nonwoven fabric, and tested for peel force and hydrostatic pressure, and the test results are shown in table 1.

The peel force test is carried out according to ISO 8510.

Wherein, the adherend is destroyed, that is, the adhesive force of the sealing strip adhesive tape for clothing is larger than the strength of the adhered fabric.

The test standard of hydrostatic pressure is carried out with reference to GBT 4744-.

TABLE 1

As can be seen from Table 1, when the sealing pressing strip adhesive tape for clothes prepared in the embodiments 1 to 6 is used for bonding seams, the adhesive tape has a good bonding effect, can effectively seal and prevent water, has no special requirements on the types of fabrics to be bonded at the seams, is suitable for various base fabrics, and has no damage to the base fabrics. Wherein, the stripping force with the terylene cloth is more than 9N, and the hydrostatic pressure is more than 2.8 KPa; the peeling force of the PE coating non-woven fabric is more than 6N, and the hydrostatic pressure is more than 2.4 KPa; the stripping force of the PU coating non-woven fabric is more than 6N, and the hydrostatic pressure is more than 2.3 KPa.

The VA content of the main resin EVA of example 7 is too low, which may increase the molecular chain crystallinity, increase the melting point, affect the molecular chain mobility, and further affect the degree of wetting of the adhesive to the adherend during the pressing process.

The VA content of the main resin EVA of example 8 is too high, which does not affect the adhesion, but the main resin has a lower melting point, a lower strength in the use temperature range, and a deformation risk, and meanwhile, the main resin price is greatly increased, and the material cost is too high.

The melt index of the main resin polyurethane in example 9 is too low, which reduces the degree of wetting of the adhesive to the adherend during the pressing process, and affects the bonding effect, and requires longer pressing time and higher pressing temperature.

The melt index of the main resin polyurethane of example 10 is too high, without significant negative effect on the adhesion itself, but the material has a lower melting point, is weaker in strength in the temperature range of use and risks deformation.

In comparative example 1, the main resin and the tackifying resin are not in the range defined in the present application, and excessive tackifying resin does not adversely affect adhesion, but the strength of the tackifying resin itself is insufficient, which results in a large drop in hydrostatic pressure test results.

In comparative example 2, the addition amount of the tackifying resin is too low, the infiltration degree of the adhesive on the adherend is insufficient, the adhesive force is obviously reduced, and the hydrostatic pressure is greatly reduced.

Comparative example 3 the use of other types of primary resins resulted in a significant reduction in adhesion and hydrostatic pressure and failure to achieve adhesion to the adherend.

The present invention is illustrated by the above-mentioned examples, but the present invention is not limited to the above-mentioned detailed process equipment and process flow, i.e. it is not meant to imply that the present invention must rely on the above-mentioned detailed process equipment and process flow to be practiced. It should be understood by those skilled in the art that any modification of the present invention, equivalent substitutions of the raw materials of the product of the present invention, addition of auxiliary components, selection of specific modes, etc., are within the scope and disclosure of the present invention.

Claims

1. The utility model provides a clothing is with sealing layering sticky tape, includes hot melt adhesive layer and substrate layer, its characterized in that, by weight, hot melt adhesive layer contains following component:

2. The sealing and trimming adhesive tape for clothing according to claim 1, wherein the main resin is EVA, the EVA has a VA content of 28 to 40%, a melt index of 100 to 400g/10min, and a melting point of 40 to 70 ℃;

preferably, the main resin is polyurethane, the melt index of the polyurethane is 10-100 g/10min, and the softening point of the polyurethane is 50-80 ℃.

3. The sealing bead tape for clothing according to claim 1 or 2, wherein the tackifying resin is any one or a mixture of at least two of a C5 resin, a C9 resin, a rosin glycerol ester, and a pentaerythritol ester;

preferably, the softening point of the tackifying resin is 60-100 ℃.

4. The sealing bead tape for clothing according to any one of claims 1 to 3, wherein the viscosity modifier is any one or a mixture of at least two of polyethylene wax, polypropylene wax, saso wax, Fischer-Tropsch wax, microcrystalline wax, polybutadiene, and polyisobutylene.

5. The sealing bead tape for clothing according to any one of claims 1 to 4, wherein the lubricant is calcium stearate and/or zinc stearate.

6. The sealing bead tape for clothing according to any one of claims 1 to 5, wherein the antioxidant is any one or a mixture of at least two of a phenol-based antioxidant, a phosphite-based antioxidant and a hindered amine-based antioxidant;

preferably, the light stabilizer is any one of bis (2,2,6, 6-tetramethyl-4-piperidyl) sebacate, polysuccinic acid (4-hydroxy-2, 2,6, 6-tetramethyl-1-piperidylethanol) ester and poly- { [6- [ (1,1,3, 3-tetramethylbutyl) -imino ] -1,3, 5-triazine-2, 4-diyl ] [2- (2,2,6, 6-tetramethylpiperidyl) -azo ] -hexamethylene- [4- (2,2,6, 6-tetramethylpiperidyl) -amino ] } or a mixture of at least two thereof.

7. The sealing bead tape for clothing according to any one of claims 1 to 6, wherein the thickness of the hot melt adhesive layer is 20 to 100 μm;

preferably, the substrate layer is subjected to a hydrophobic treatment.

8. A method of preparing the sealing bead tape for clothing according to any one of claims 1 to 7, characterized in that it comprises: uniformly mixing the main resin, the tackifying resin, the viscosity regulator, the lubricant, the antioxidant and the light stabilizer according to the proportion, adding the mixture into a casting machine for casting to form a film, spraying the film on a substrate layer, and rolling after hot pressing to obtain the sealing batten adhesive tape for clothing.

9. The production method according to claim 8, wherein the temperature of the cast film is 40 to 150 ℃.

10. Use of the sealing bead tape for clothing according to claims 1 to 7, characterized in that the sealing bead tape for clothing is used for the processing of disposable medical protective clothing, chemical protective clothing or outdoor sportswear.